ืžืฆื ื›ืœ ื”ืฆื”ืจืช SQL

ืฉืื™ืœืชื•ืช ื ืกืชืจื•ืช, ื”ืฉืคืขื” ื’ื“ื•ืœื”: ืžืฆื ื›ืœ ื”ืฆื”ืจืช SQL ื‘ื‘ืกื™ืก ื”ืงื•ื“ ืฉืœืš

SQL ื”ื•ื ืขืžื•ื“ ื”ืฉื“ืจื” ื”ื‘ืœืชื™ ื ืจืื” ืฉืœ ื›ืžืขื˜ ื›ืœ ื™ื™ืฉื•ื ืืจื’ื•ื ื™. ื”ื•ื ืžื ื™ืข ืžื ื•ืขื™ ื“ื™ื•ื•ื—, ืžื ื™ืข ืชื”ืœื™ื›ื™ ืขืกืงืื•ืช, ืžื–ื™ืŸ ืžืžืฉืงื™ API ื•ืžืกื“ื™ืจ ืืช ื”ืื•ืคืŸ ืฉื‘ื• ื ืชื•ื ื™ื ืขืกืงื™ื™ื ืขื•ื‘ืจื™ื ื‘ืžืขืจื›ื•ืช. ืขื ื–ืืช, ื‘ืืจื’ื•ื ื™ื ืจื‘ื™ื, SQL ื ื•ืชืจ ืžืคื•ื–ืจ ื•ื‘ืœืชื™ ืžืชื•ืขื“ ืงื‘ื•ืจ ืขืžื•ืง ื‘ืงื•ื“ ืžื“ื•ืจ ืงื•ื“ื, ืžื•ื˜ื‘ืข ื‘ืœื•ื’ื™ืงื” ืฉืœ ื™ื™ืฉื•ืžื™ื ื•ืžื•ืกืชืจ ืžืื—ื•ืจื™ ืฉื›ื‘ื•ืช ืฉืœ ืžืกื’ืจื•ืช, ื ื”ืœื™ื ืžืื•ื—ืกื ื™ื ื•ื›ืœื™ื ืฉืœ ืฆื“ ืฉืœื™ืฉื™.

ืžืฆื™ืืช ื›ืœ ืžืฉืคื˜ SQL ืขืœ ืคื ื™ ื‘ืกื™ืก ืงื•ื“ ืฉืœื ืื™ื ื• ื—ื™ืคื•ืฉ ืคืฉื•ื˜. ื–ื”ื• ืืชื’ืจ ื’ื™ืœื•ื™ ื”ืžืฉืชืจืข ืขืœ ืคื ื™ ื˜ื›ื ื•ืœื•ื’ื™ื•ืช, ืฉืคื•ืช ื•ืขืฉืจื•ืช ืฉื ื•ืช ืื‘ื•ืœื•ืฆื™ื”. ืž-COBOL copybooks ื•-Java JDBC ืงืจื™ืื•ืช ืœื‘ื•ื ื™ ืฉืื™ืœืชื•ืช ืฉืœ Python ื•ืชื™ื‘ื•ืช ืฉื—ื•ืจื•ืช ืฉืกื•ืคืงื• ืขืœ ื™ื“ื™ ื”ืกืคืง, SQL ืžื•ืคื™ืข ื‘ืฆื•ืจื•ืช ืฉืœืขื™ืชื™ื ืงืจื•ื‘ื•ืช ืžื•ืคืฉื˜ื•ืช, ื‘ื ื•ื™ื•ืช ื‘ืื•ืคืŸ ื“ื™ื ืžื™ ืื• ื ื—ืฉืคื•ืช ื‘ืื•ืคืŸ ื—ืœืงื™ ื‘ืœื‘ื“. ื–ื” ืžืงืฉื” ืขืœ ื’ื™ืœื•ื™ ืžืงื™ืฃ, ืืคื™ืœื• ืขื‘ื•ืจ ืฆื•ื•ืชื™ื ืžื ื•ืกื™ื.

ืชื•ื›ืŸ ื”ืขื ื™ื™ื ื™ื

ืขื‘ื•ืจ ืœื™ื“ื™ ืคื™ืชื•ื—, ืื“ืจื™ื›ืœื™ ืžืกื“ื™ ื ืชื•ื ื™ื ื•ืฆื•ื•ืชื™ ืžื•ื“ืจื ื™ื–ืฆื™ื”, ื—ื•ืกืจ ื”ื ืจืื•ืช ื”ื–ื” ืžืฆื™ื’ ืกื™ื›ื•ืŸ. ืžื‘ืœื™ ืœื“ืขืช ื”ื™ื›ืŸ SQL ื ื›ืชื‘, ืžื‘ื•ืฆืข ืื• ืžืคื ื”, ืฆื•ื•ืชื™ื ื ืื‘ืงื™ื ืœื‘ืฆืข ืžื—ื“ืฉ ื‘ื‘ื˜ื—ื”, ืœื™ื™ืขืœ ืืช ื”ื‘ื™ืฆื•ืขื™ื, ืœื ื”ืœ ื‘ืงืจื•ืช ื’ื™ืฉื” ืื• ืœื”ืชื›ื•ื ืŸ ืœื‘ื™ืงื•ืจื•ืช. ื•ื›ื›ืœ ืฉื”ืžืขืจื›ื•ืช ืžืชืจื—ื‘ื•ืช, ื”ืขืœื•ืช ืฉืœ ื ืจืื•ืช ืœื ืžืœืื” ืจืง ื’ื“ืœื”.

ืžืืžืจ ื–ื” ื‘ื•ื—ืŸ ืžื“ื•ืข ืžืฆื™ืืช ื›ืœ ื”ืฆื”ืจืช SQL ื‘ื‘ืกื™ืก ื”ืงื•ื“ ืฉืœืš ื—ื™ื•ื ื™ืช ืขื‘ื•ืจ ื‘ืงืจื” ืชืคืขื•ืœื™ืช, ืชืื™ืžื•ืช ื•ืžื•ื“ืจื ื™ื–ืฆื™ื” ื•ื›ื™ืฆื“ ืœื’ืฉืช ืืœื™ื” ื‘ืฆื•ืจื” ื—ื›ืžื” ื‘ืกื‘ื™ื‘ื•ืช ื’ื“ื•ืœื•ืช ื—ื•ืฆื•ืช-ืคืœื˜ืคื•ืจืžื•ืช. ื‘ื™ืŸ ืื ืืชื” ื”ืชืžื•ื“ื“ื•ืช ืขื ืžืขืจื›ื•ืช ืžื“ื•ืจ ืงื•ื“ื, ืฉื™ืจื•ืชื™ ืขื ืŸ ืžื•ื“ืจื ื™ื™ื, ืื• ื”ื›ืœืื” ืฉืœ ืฉื ื™ื”ื, ื’ื™ืœื•ื™ SQL ืžืœื ืื™ื ื• ืื•ืคืฆื™ื•ื ืœื™ ืขื•ื“. ื–ื” ื‘ืกื™ืกื™ ืœื”ื‘ื ื” ื›ื™ืฆื“ ื”ืขืกืง ืฉืœืš ืคื•ืขืœ ืขืœ ื ืชื•ื ื™ื.

SQL ื‘ื›ืœ ืžืงื•ื: ืžื“ื•ืข ื’ื™ืœื•ื™ ื”ืฆื”ืจื•ืช ืงืฉื” ื™ื•ืชืจ ืžืžื” ืฉื”ื•ื ื ืจืื”

SQL ื”ื™ื ืื—ืช ื”ืฉืคื•ืช ื”ื ืคื•ืฆื•ืช ื•ื”ืงืจื™ื˜ื™ื•ืช ื‘ื™ื•ืชืจ ืœืžืฉื™ืžื” ื‘ืžืขืจื›ื•ืช ืืจื’ื•ื ื™ื•ืช. ื”ื•ื ื—ื™ ื‘ืœื‘ ื”ืขื™ื‘ื•ื“ ื”ืคื™ื ื ืกื™, ื”ืœื•ื’ื™ืกื˜ื™ืงื”, ื“ื™ื•ื•ื— ื”ืชืื™ืžื•ืช, ื ื™ื”ื•ืœ ื”ืžืฉืชืžืฉื™ื ื•ืขื•ื“. ืื‘ืœ ื‘ืขื•ื“ ืฉื”ื”ืฉืคืขื” ืฉืœื• ืขืฆื•ืžื”, ื”ื ื•ื›ื—ื•ืช ืฉืœื• ืขืœ ืคื ื™ ื‘ืกื™ืก ื”ืงื•ื“ ื”ื™ื ืœืจื•ื‘ ืžืงื•ื˜ืขืช ื•ืžื•ืกืชืจืช. ืฉืœื ื›ืžื• ืžืžืฉืงื™ API ืื• ืžื•ื“ื•ืœื™ื ืžื•ื‘ื ื™ื, SQL ืžื•ื˜ื‘ืข, ืžื•ืคืฉื˜ ืื• ื ื‘ื ื” ื‘ืื•ืคืŸ ื“ื™ื ืžื™ ืœืขืชื™ื ืงืจื•ื‘ื•ืช - ืžื” ืฉื”ื•ืคืš ืืช ื”ื’ื™ืœื•ื™ ืœืžืฉื™ืžื” ืžื•ืจื›ื‘ืช ื•ืœื ืœื—ื™ืคื•ืฉ ืคืฉื•ื˜.

ืกืขื™ืฃ ื–ื” ืžืชืืจ ืžื” ืžืชืื™ื ืœื”ืฆื”ืจืช SQL, ืžื“ื•ืข ื™ื›ื•ืœ ืœื”ื™ื•ืช ืงืฉื” ืœืžืฆื•ื ืื•ืชื” ื•ืžื“ื•ืข ื’ื™ืœื•ื™ ืžืงื™ืฃ ื—ื™ื•ื ื™ ืœืื™ื›ื•ืช ืชื•ื›ื ื”, ื™ืฆื™ื‘ื•ืช ื•ืžื•ื“ืจื ื™ื–ืฆื™ื”.

ืžื” ื ื—ืฉื‘ ื›ืžืฉืคื˜ SQL (ื•ืœืžื” ื–ื” ื—ืฉื•ื‘)

ื›ืืฉืจ ืฆื•ื•ืชื™ื ืžืชื—ื™ืœื™ื ืœื—ืคืฉ SQL ื‘ืžืขืจื›ืช, ื”ื ื‘ื“ืจืš ื›ืœืœ ื—ื•ืฉื‘ื™ื ืขืœ ืžื‘ื ื” ื˜ื•ื‘ SELECT, INSERT, ืื• UPDATE ื”ืฆื”ืจื•ืช ืฉื™ื•ืฉื‘ื•ืช ื‘ืชื•ืš ื ื”ืœื™ื ืžืื•ื—ืกื ื™ื ืื• ืชืฆื•ื’ื•ืช ืžืกื“ ื ืชื•ื ื™ื. ืื‘ืœ ื–ื” ืจืง ื—ืœืง ืžื”ืชืžื•ื ื”. SQL ื™ื›ื•ืœ ืœื”ื•ืคื™ืข ื‘ืขืฉืจื•ืช ืฆื•ืจื•ืช - ื—ืœืงืŸ ื‘ืจื•ืจื•ืช, ืื—ืจื•ืช ื—ื‘ื•ื™ื•ืช ืขืžื•ืง.

SQL ื—ื•ืงื™ ืขืฉื•ื™ ืœื”ื™ืžืฆื ื‘:

  • ืงื•ื“ ื™ื™ืฉื•ื (Java, C#, Python, COBOL)
  • ืžื—ืจื•ื–ื•ืช ืฉืื™ืœืชื•ืช ื“ื™ื ืžื™ื•ืช ืฉื ื‘ื ื• ื‘ื–ืžืŸ ืจื™ืฆื”
  • ืžืกื’ืจื•ืช ORM ืฉืœ ืฆื“ ืฉืœื™ืฉื™ ื›ืžื• ืœึทื—ึฒืจื•ึนืฃ or ืžืกื’ืจืช ื™ืฉื•ื™ื•ืช
  • ืงื‘ืฆื™ ืชืฆื•ืจื” ืื• ืชื‘ื ื™ื•ืช ืฉืื™ืœืชื•ืช ื—ื™ืฆื•ื ื™ื•ืช
  • ETL ื•ืชืกืจื™ื˜ื™ ื“ื™ื•ื•ื—
  • ืกืงืจื™ืคื˜ื™ื ืฉืœ ืžืขื˜ืคืช ืื• ืฉืคืช ื‘ืงืจืช ืขื‘ื•ื“ื” ื‘ืžื™ื™ื ืคืจื™ื™ื

ื™ืฉ ืœื”ืชื™ื™ื—ืก ืืคื™ืœื• ืœื“ื™ืืœืงื˜ื™ื ืคืกืื•ื“ื•-SQL ืื• ืกืคืง ืกืคืฆื™ืคื™ื™ื (ื›ืžื• PL/SQL, T-SQL ืื• DB2 SQL). ื”ืืชื’ืจ ื”ื•ื ืœื ืจืง ืœื–ื”ื•ืช ื”ื™ื›ืŸ ื”ื”ืฆื”ืจื” ืžืžื•ืงืžืช ืืœื ื’ื ืœื”ื‘ื™ืŸ ืื ื”ื™ื ืคื•ืขืœืช ื‘ื™ื™ืฆื•ืจ, ื”ื•ืฆืื” ืžืฉื™ืžื•ืฉ ืื• ืฉื•ื›ืคืœื” ื‘ื™ืŸ ืฉื™ืจื•ืชื™ื.

ืื ื”ื—ื™ืคื•ืฉ ืฉืœืš ื›ื•ืœืœ ืจืง ืงื‘ืฆื™ื ืกื˜ื˜ื™ื™ื ืื• ื˜ื›ื ื•ืœื•ื’ื™ื•ืช ืžืกื•ื™ืžื•ืช, ืžื•ื‘ื˜ื— ืฉืชื—ืžื™ืฅ ืฉืื™ืœืชื•ืช ืงืจื™ื˜ื™ื•ืช ืฉืžื ื™ืขื•ืช ืคื•ื ืงืฆื™ื•ื ืœื™ื•ืช ื—ื™ื”. ื•ื‘ืกื‘ื™ื‘ื•ืช ืฉื‘ื”ืŸ ืžืขืจื›ื•ืช ืžืฉืชืจืขื•ืช ืขืœ ืคื ื™ ืขืฉืจื•ืช ืฉื ื™ื ืฉืœ ืื‘ื•ืœื•ืฆื™ื”, ืืคื™ืœื• ืฉืื™ืœืชื” ืื—ืช ืฉื”ืชืขืœืžื” ืžืžื ื” ื™ื›ื•ืœื” ืœื”ื•ื‘ื™ืœ ืœื‘ืื’ื™ื, ื›ืฉืœื™ื ื‘ื‘ื™ืงื•ืจืช ืื• ืœื›ืฉืœื•ื ื•ืช ืžื•ื“ืจื ื™ื–ืฆื™ื”.

ืžื“ื•ืข SQL ืžืชื—ื‘ื ื‘ืžืงื•ืžื•ืช ื‘ืœืชื™ ืฆืคื•ื™ื™ื ื‘ืžืขืจื›ื•ืช

SQL ืœื ืชืžื™ื“ ืžื•ืคื™ืข ื”ื™ื›ืŸ ืฉืืชื” ืžืฆืคื” ืœื•. ื–ื” ืขืฉื•ื™ ืœื”ื™ื•ืช ืขื˜ื•ืฃ ื‘ืชื•ืš ืงืจื™ืืช ืคื•ื ืงืฆื™ื”, ืžื•ืคืฉื˜ ืขืœ ื™ื“ื™ ืžืกื’ืจืช, ืื• ืžื•ื–ืจืง ืœื–ื™ื›ืจื•ืŸ ื‘ื–ืžืŸ ืจื™ืฆื”. ืœื“ื•ื’ืžื”, ื‘ืชื•ื›ื ื™ื•ืช COBOL, ื”ืฆื”ืจื•ืช SQL ืขืฉื•ื™ื•ืช ืœื”ื™ื•ืช ืžื•ื˜ืžืขื•ืช ื‘ืชื•ืš ื”ื’ื“ืจื•ืช ื ืชื•ื ื™ื ื•ืœื”ืชื‘ืฆืข ื‘ืืžืฆืขื•ืช ืžื•ื“ื•ืœื™ ื’ื™ืฉื” ืœืžืกื“ ื ืชื•ื ื™ื. ื‘-Java, ื”ื ืขืฉื•ื™ื™ื ืœื”ื™ื•ืช ื‘ื ื•ื™ื™ื ืžืžื—ืจื•ื–ื•ืช ืžืจื•ื‘ื•ืช, ืฉื”ืฆื˜ืจืคื• ื‘ื–ืžืŸ ืจื™ืฆื”. ื‘-Python ืื• ื‘-Node.js, ื‘ื•ื ื™ ืฉืื™ืœืชื•ืช ื™ื•ืฆืจื™ื SQL ื‘ืื•ืคืŸ ื“ื™ื ืžื™ ืžื›ื ื™ืกื•ืช ืžืฉืชืžืฉ ืื• ืžืžื•ื“ืœื™ื ืฉืœ ืื•ื‘ื™ื™ืงื˜ื™ื.

ืจื‘ื•ืช ืžื”ืฉื™ื˜ื•ืช ื”ืœืœื• ืžืงืฉื•ืช ืขืœ ื–ื™ื”ื•ื™ ืฉืื™ืœืชื•ืช ื‘ืืžืฆืขื•ืช ืกืจื™ืงืช ืงื‘ืฆื™ื ืžืกื•ืจืชื™ืช ืื• ื—ื™ืคื•ืฉื™ื ืกื˜ื˜ื™ื™ื ื“ืžื•ื™ื™ grep. ื—ืœืง ืžื”-SQL ืืคื™ืœื• ืœื ืžืื•ื—ืกืŸ ื›ื˜ืงืกื˜ ืจื’ื™ืœ - ื”ื•ื ืขืฉื•ื™ ืœื”ื™ื•ืช ืžื•ื˜ืžืข ื‘ืงื‘ืฆื™ื ื‘ื™ื ืืจื™ื™ื ืžื”ื•ื“ืจื™ื, ื–ืจืžื™ ืขื‘ื•ื“ื” ืื• ื”ืคืฉื˜ื•ืช ืฉื›ื‘ื•ืช ื‘ืชื•ืš ืคืœื˜ืคื•ืจืžื•ืช ืฉืœ ืกืคืงื™ื.

ืืจื›ื™ื˜ืงื˜ื•ืจื•ืช ืžื•ื“ืจื ื™ื•ืช ืžืงืฉื•ืช ืขื•ื“ ื™ื•ืชืจ. ืฉื™ืจื•ืชื™ ืžื™ืงืจื• ืžื‘ื–ืจื™ื ืœืขืชื™ื ืงืจื•ื‘ื•ืช ืืช SQL ืขืœ ืคื ื™ ืขืฉืจื•ืช ื‘ืกื™ืกื™ ืงื•ื“, ื‘ืขื•ื“ ืฉืคืœื˜ืคื•ืจืžื•ืช ื•ื“ืœื•ืช ืงื•ื“ ื•ืชื•ื›ื ื•ืช ืขืฉื•ื™ื•ืช ืœื™ืฆื•ืจ ืื• ืœื”ืคืขื™ืœ SQL ืžื‘ืœื™ ืœื—ืฉื•ืฃ ืื•ืชื• ืœื‘ืงืจืช ืžืงื•ืจ.

ื’ื•ืจืžื™ื ืืœื” ืคื™ืจื•ืฉื ืฉื’ื™ืœื•ื™ ื™ืขื™ืœ ื“ื•ืจืฉ ื ื™ืชื•ื— ืžื‘ื ื™ ืขืžื•ืง, ืชืžื™ื›ื” ื‘ืžืกืคืจ ืฉืคื•ืช ื•ืคื•ืจืžื˜ื™ื ื•ื”ื‘ื ื” ืฉืœ ื”ืงืฉืจ ื”ื‘ื™ืฆื•ืข - ืœื ืจืง ืฉืžื•ืช ืงื‘ืฆื™ื ื•ืžื—ืจื•ื–ื•ืช.

ื”ืกื™ื›ื•ื ื™ื ืฉืœ ื ืจืื•ืช SQL ืœื ืžืœืื”

ื›ื™ืฉืœื•ืŸ ืœืžืฆื•ื ืืช ื›ืœ ื”ืฆื”ืจื•ืช ื”-SQL ื‘ืกื‘ื™ื‘ื” ืฉืœืš ื”ื•ื ืœื ืจืง ื”ื–ื“ืžื ื•ืช ืื•ืคื˜ื™ืžื™ื–ืฆื™ื” ืฉื”ื•ื—ืžืฆื” - ื–ื” ืžืฆื™ื’ ืกื™ื›ื•ืŸ ืืžื™ืชื™. ื”ื™ื’ื™ื•ืŸ ืขืกืงื™ ืขืฉื•ื™ ืœื”ื™ื•ืช ืžื™ื•ืฉื ื‘-SQL ื”ืžืฉื•ื›ืคืœ ื‘ื™ืŸ ืฉื™ืจื•ืชื™ื ืฉื•ื ื™ื. ืฉืื™ืœืชื” ืจื’ื™ืฉื” ืœืื‘ื˜ื—ื” ืขืฉื•ื™ื” ืœื—ื™ื•ืช ืžื—ื•ืฅ ืœืฉืœื™ื˜ื” ื‘ื’ื™ืจืกื”. ืขื“ื™ื™ืŸ ื ื™ืชืŸ ืœื”ืชื™ื™ื—ืก ืœืชืฆื•ื’ื” ืžืคื•ืจื˜ืช ืฉื”ื•ืฆืื” ืžื“ื•ื— ืžื“ื•ืจ ืงื•ื“ื.

ืœืœื ืžืคื” ืฉืœืžื”, ืขื™ื‘ื•ื“ ืžื—ื“ืฉ ื”ื•ืคืš ืœืžืกื•ื›ืŸ, ืื™ืชื•ืจ ื‘ืื’ื™ื ื ื”ื™ื” ืื™ื˜ื™ ื™ื•ืชืจ, ื•ื‘ื™ืงื•ืจื•ืช ื”ืชืื™ืžื•ืช ื”ื•ืคื›ื•ืช ืœืžื•ืจื›ื‘ื•ืช ื™ื•ืชืจ. ืฆื•ื•ืช ืฉืžืขื“ื›ืŸ ืฉืื™ืœืชืช ื—ื™ืคื•ืฉ ืœืงื•ื— ืขืฉื•ื™ ืœืชืงืŸ ื’ืจืกื” ืื—ืช ื•ืœื”ืฉืื™ืจ ืœืœื ืžื•ื“ืข ืืจื‘ืข ืื—ืจื•ืช ืœืœื ืฉื™ื ื•ื™. ื–ื” ืžื•ื‘ื™ืœ ืœื”ืชื ื”ื’ื•ืช ื ืชื•ื ื™ื ืœื ืขืงื‘ื™ืช, ื”ืขื‘ืจื•ืช ื›ื•ืฉืœื•ืช ืื• ื“ื™ื•ื•ื— ืœื ืืžื™ืŸ.

ื’ื ืจืื•ืช ื—ืœืงื™ืช ืคื•ื’ืขืช ื‘ื‘ื“ื™ืงื•ืช. ืื SQL ืžื•ืคืฅ ื‘ื™ืŸ ืžืขืจื›ื•ืช ื•ืื™ื ื• ืžืชื•ืขื“ ืื• ื‘ืžืขืงื‘, ื›ื™ืกื•ื™ ื”ื‘ื“ื™ืงื” ื”ื•ืคืš ืœื ืื—ื™ื“, ื•ืฉืื™ืœืชื•ืช ืงืจื™ื˜ื™ื•ืช ืขืœื•ืœื•ืช ืœื”ื—ืžื™ืฅ ืœื—ืœื•ื˜ื™ืŸ.

ืžืขืจื›ืช ื”ืคื•ืขืœืช ืขืœ SQL ืžื•ืกืชืจ ื”ื™ื ืžืขืจื›ืช ืฉืœื ื ื™ืชืŸ ืœืฉื ื•ืช ื‘ื‘ื™ื˜ื—ื•ืŸ.

ืžื”ื™ื’ื™ื•ืŸ ืžื“ื•ืจ ืงื•ื“ื ืœืฉื™ืจื•ืชื™ ืžื™ืงืจื•: ืžืขืงื‘ ืื—ืจ SQL ื‘ืจื—ื‘ื™ ื”ืขืจื™ืžื”

ื‘ืืจื’ื•ื ื™ื ืจื‘ื™ื, SQL ื—ื™ ื‘ื›ืœ ืžืงื•ื: ื‘ืชื•ืš ืžื™ื™ื ืคืจื™ื™ื, ืฉื™ืจื•ืชื™ื ืžืงื•ืจื™ื™ื ื‘ืขื ืŸ, ืœื•ื—ื•ืช ืžื—ื•ื•ื ื™ื ืœื“ื™ื•ื•ื— ื•ืžืจื›ื–ื™ ืื™ื ื˜ื’ืจืฆื™ื”. ื›ืœ ืฉื›ื‘ื” ืžื•ืกื™ืคื” ืžื•ืจื›ื‘ื•ืช ืœืชื”ืœื™ืš ื”ื’ื™ืœื•ื™. ืชื•ื›ื ื™ื•ืช COBOL ืžืฉืชืžืฉื•ืช ื‘ืœื•ืงื™ SQL ืžื•ื˜ื‘ืขื™ื. ื ื”ืœื™ื ืžืื•ื—ืกื ื™ื ื‘-PL/SQL ืื• T-SQL ืžืกืชื™ืจื™ื ืœื•ื’ื™ืงื” ืงืจื™ื˜ื™ืช. ืžืžืฉืงื™ ืงืฆื” ืฉืœ JavaScript ืขืฉื•ื™ื™ื ืœืงืจื•ื ืœืžืžืฉืงื™ API ื”ืžืคืขื™ืœื™ื ืฉื’ืจื•ืช ืžืกื“ ื ืชื•ื ื™ื ื‘ืื•ืคืŸ ื“ื™ื ืžื™.

ืืคื™ืœื• ื›ืœื™ื ืžื•ื“ืจื ื™ื™ื ื›ืžื• ืกืคืจื™ื•ืช ORM ื•ื‘ื•ื ื™ ืฉืื™ืœืชื•ืช ื™ื›ื•ืœื™ื ืœื˜ืฉื˜ืฉ ืžื” SQL ืžื‘ื•ืฆืข. ื”ื”ืคืฉื˜ื•ืช ื”ืœืœื• ืขื•ื–ืจื•ืช ืœืžืคืชื—ื™ื ืœื ื•ืข ื‘ืžื”ื™ืจื•ืช ืืš ืžืงืฉื•ืช ืœื“ืขืช ืžื” ืคื•ื’ืข ื‘ืžืกื“ ื”ื ืชื•ื ื™ื ื‘ื™ื™ืฆื•ืจ.

ืžืขืงื‘ ืื—ืจ SQL ื‘ืจื—ื‘ื™ ื”ืžื—ืกื ื™ืช ืคื™ืจื•ืฉื• ืชืžื™ื›ื” ื‘ื ื™ืชื•ื— ื—ื•ืฆื” ื˜ื›ื ื•ืœื•ื’ื™ื”, ื ื™ืชื•ื— ืชืœื•ืช ื•ืžืขืงื‘ ืื—ืจ ื–ืจื™ืžื”. ืžื“ื•ื‘ืจ ืขืœ ื™ื•ืชืจ ืžืกืชื ืžืฆื™ืืช ืฉื•ืจื•ืช ืฉืžืชื—ื™ืœื•ืช ื‘ื”ืŸ SELECT. ืžื“ื•ื‘ืจ ื‘ื”ื‘ื ื” ื›ื™ืฆื“ ื”ื ืชื•ื ื™ื ื–ื•ืจืžื™ื ืžืงืœื˜ ื”ืžืฉืชืžืฉ ืœื‘ื™ืฆื•ืข ืฉืื™ืœืชื” ืœืชื•ืฆืื” ืขืกืงื™ืช.

ืœืœื ืกื•ื’ ื–ื” ืฉืœ ื ื™ืชื•ื— ืžืขืžื™ืง ื•ื—ื•ืฆื” ืžืขืจื›ื•ืช, ื”ืฆื•ื•ืชื™ื ื ื•ืชืจื™ื ืขื ื ืงื•ื“ื•ืช ืขื™ื•ื•ืจื•ืช ืฉืžืื˜ื•ืช ืืช ื”ื—ื“ืฉื ื•ืช ื•ืžื’ื‘ื™ืจื•ืช ืืช ื”ืกื™ื›ื•ืŸ ื”ืชืคืขื•ืœื™.

ื›ื™ืฆื“ SQL ื”ื•ืคืš ืœื‘ืœืชื™ ื ืจืื” ื‘ื‘ืกื™ืกื™ ืงื•ื“ ื’ื“ื•ืœื™ื

ืžืฆื™ืืช ื”ืฆื”ืจื•ืช SQL ื‘ื‘ืกื™ืก ืงื•ื“ ืžื•ื“ืจื ื™ ื”ื•ื ืœืขืชื™ื ืจื—ื•ืงื•ืช ืคืฉื•ื˜. ื‘ืขื•ื“ ืฉื—ืœืง ืžื”ืฉืื™ืœืชื•ืช ืงืœื•ืช ืœื–ื™ื”ื•ื™, ืจื‘ื•ืช ืžื”ืŸ ืงื‘ื•ืจื•ืช ื‘ืชื•ืš ืžื‘ื ื™ื ืžื“ื•ืจ ืงื•ื“ื, ืžืขื•ืจืคืœื•ืช ืขืœ ื™ื“ื™ ืฉื›ื‘ื•ืช ื”ืคืฉื˜ื” ืื• ื ื•ืฆืจื•ืช ื‘ืื•ืคืŸ ื“ื™ื ืžื™ ื‘ื–ืžืŸ ืจื™ืฆื”. ื›ื›ืœ ืฉื”ืžื—ืกื ื™ืช ืฉืœืš ืขืžื•ืงื” ื™ื•ืชืจ, ื›ืš ื”ืฆื”ืจื•ืช SQL ืืœื” ื”ื•ืคื›ื•ืช ืžื•ืกืชืจื•ืช ื™ื•ืชืจ - ื•ืงืฉื” ื™ื•ืชืจ ืœื’ืœื•ืช ื•ืœื ื”ืœ ืื•ืชืŸ.

ื—ืœืง ื–ื” ื‘ื•ื—ืŸ ืืช ื”ืกื™ื‘ื•ืช ื”ื˜ื›ื ื™ื•ืช ืœื›ืš ืฉ-SQL ืžืชืงืฉื” ืœื–ื”ื•ืช, ืขื ื“ื•ื’ืžืื•ืช ืžืกื‘ื™ื‘ื•ืช ืืžื™ืชื™ื•ืช ืฉื‘ื”ืŸ ืฉืื™ืœืชื•ืช ืงืจื™ื˜ื™ื•ืช ื—ื™ื•ืช ืžื—ื•ืฅ ืœื˜ื•ื•ื— ื”ืจืื™ื™ื”.

SQL ืžื•ื˜ื‘ืข ื‘ืฉืคื•ืช ืžื“ื•ืจ ืงื•ื“ื (COBOL, PL/SQL, RPG)

ื‘ืžืขืจื›ื•ืช ืžื“ื•ืจ ืงื•ื“ื, SQL ืžื•ื˜ืžืข ืœืขืชื™ื ืงืจื•ื‘ื•ืช ื‘ืชื•ืš ืฉืคื•ืช ืชื›ื ื•ืช ืžืืจื—ื•ืช. ืชื•ื›ื ื™ื•ืช COBOL, ืœืžืฉืœ, ืขืฉื•ื™ื•ืช ืœื”ื›ื™ืœ SQL ื‘ืชื•ืš ื‘ืœื•ืงื™ื ืฉืœ EXEC SQL, ื”ื™ื“ื•ืจ ืขื ืžืขื‘ื“ื™ื ืžืจืืฉ ื•ืžืงื•ืฉืจื™ื ืžื•ืœ ืžื•ื“ื•ืœื™ ื’ื™ืฉื” ื—ื™ืฆื•ื ื™ื™ื ืœืžืกื“ ื ืชื•ื ื™ื. ืงืฉื” ืœื—ืคืฉ ื”ืฆื”ืจื•ืช ืืœื” ื™ืฉื™ืจื•ืช ืžื›ื™ื•ื•ืŸ ืฉื”ืŸ ืžืขื•ืจื‘ื•ืช ืขื ื”ื™ื’ื™ื•ืŸ ืคืจื•ืฆื“ื•ืจืœื™ ืื—ืจ ื•ืขืฉื•ื™ื•ืช ืœื”ืฉืชืจืข ืขืœ ืžืื•ืช ืฉื•ืจื•ืช.

ื‘ืื•ืคืŸ ื“ื•ืžื”, ื‘ืฉืคื•ืช ื›ืžื• PL/SQL ืื• RPG, SQL ืžืฉื•ืœื‘ ืขืžื•ืง ื‘ื–ืจื™ืžืช ื”ื‘ืงืจื”. ืฉืื™ืœืชื•ืช ืขืฉื•ื™ื•ืช ืœื”ื™ื‘ื ื•ืช ืขืœ ืคื ื™ ืžืกืคืจ ืคื•ื ืงืฆื™ื•ืช ืื• ืœื”ื˜ืžื™ืข ื‘ืคืงื•ื“ื•ืช ืžืืงืจื• ืžื“ื•ืจ ืงื•ื“ื, ืžื” ืฉื”ื•ืคืš ืื•ืชืŸ ืœื›ืžืขื˜ ื‘ืœืชื™ ืืคืฉืจื™ ืœื‘ื•ื“ื“ ืœืœื ื›ืœื™ ื ื™ืชื•ื— ืžื™ื•ื—ื“ื™ื.

ื‘ื’ืœืœ ืžื‘ื ื™ื ืืœื”, ื”ืฆื”ืจื•ืช SQL ืœืจื•ื‘ ืื™ื ืŸ ืžืชื•ืขื“ื•ืช ืื• ืžืฉื•ื›ืคืœื•ืช ื‘ื™ืŸ ืขื‘ื•ื“ื•ืช ื•ืชืกืจื™ื˜ื™ื. ืฉื™ื ื•ื™ื™ื ืฉื‘ื•ืฆืขื• ื‘ืžืงื•ื ืื—ื“ ืขืฉื•ื™ื™ื ืฉืœื ืœื”ื™ื•ืช ืžืฉื•ื›ืคืœื™ื ื‘ืžืงื•ื ืื—ืจ, ืžื” ืฉื™ื•ื‘ื™ืœ ืœื”ื™ื’ื™ื•ืŸ ืœื ืขืงื‘ื™ ื•ืœื‘ืื’ื™ื ืฉืงืฉื” ืœืขืงื•ื‘ ืื—ืจื™ื”ื.

SQL ื‘ืงื•ื“ ืžื•ื“ืจื ื™ (Java, Python, C#, ื ื”ืœื™ื ืžืื•ื—ืกื ื™ื)

ืฉืคื•ืช ืชื›ื ื•ืช ืžื•ื“ืจื ื™ื•ืช ืžืฆื™ืขื•ืช ื™ื•ืชืจ ื’ืžื™ืฉื•ืช, ืืš ื”ืŸ ื’ื ืžื•ืกื™ืคื•ืช ืฉื›ื‘ื•ืช ืฉืœ ืžื•ืจื›ื‘ื•ืช. ื‘-Java, SQL ืขืฉื•ื™ ืœื”ื™ื•ืช ื‘ื ื•ื™ ืžืžื—ืจื•ื–ื•ืช ืžืจื•ื‘ื•ืช, ืฉื ื‘ื ื” ื‘ืื•ืคืŸ ืžื•ืชื ื” ื‘ื–ืžืŸ ืจื™ืฆื”, ืื• ืœืขื‘ื•ืจ ื“ืจืš ืžืื’ืจื™ ื—ื™ื‘ื•ืจ ื‘ืืžืฆืขื•ืช ื”ืฆื”ืจื•ืช ืžื•ื›ื ื•ืช. ื‘-Python, SQL ืžื•ื˜ื‘ืข ืœืขืชื™ื ืงืจื•ื‘ื•ืช ื‘ืžื•ื“ืœื™ื ืฉืœ ORM ืื• ื‘ื ื•ื™ ืขื ืื™ื ื˜ืจืคื•ืœืฆื™ื” ืฉืœ ืžื—ืจื•ื–ื•ืช, ืžื” ืฉื”ื•ืคืš ืื•ืชื• ืœื“ื™ื ืžื™ ื•ืงืฉื” ืœืžืขืงื‘.

ื ื”ืœื™ื ืžืื•ื—ืกื ื™ื ืžื•ืกื™ืคื™ื ืฉื›ื‘ื” ื ื•ืกืคืช. ื‘ืขื•ื“ ืฉื”ื ืขื•ื–ืจื™ื ืœืจื›ื– ืืช ื”ื”ื™ื’ื™ื•ืŸ ื‘ืชื•ืš ืžืกื“ ื”ื ืชื•ื ื™ื, ื”ื ื’ื ืžืกื™ืจื™ื ืืช SQL ืžืฉื›ื‘ืช โ€‹โ€‹ื”ื™ื™ืฉื•ื. ืื ืžืขืจื›ืช ืžื‘ืฆืขืช ื ื”ืœื™ื ืœืœื ืžื˜ื ื ืชื•ื ื™ื ืื• ืชื™ืขื•ื“ ื‘ืจื•ืจื™ื, ืžืคืชื—ื™ื ืขืœื•ืœื™ื ืœืื‘ื“ ืืช ื”ื ืจืื•ืช ืœื’ื‘ื™ ื”ืฉืื™ืœืชื•ืช ื”ืžื•ืคืขืœื•ืช ื‘ืคื•ืขืœ, ืื• ื›ื™ืฆื“ ื”ื ืชื•ื ื™ื ืžืื•ื—ื–ืจื™ื ืื• ืžืฉืชื ื™ื.

ืืคื™ืœื• ืขื ื’ื™ืฉื” ืœืงื•ื“, ืชื›ื•ื ื•ืช ืชื—ื‘ื™ืจ ื•ืฉืคื” ืžื•ื“ืจื ื™ื•ืช ื”ื•ืคื›ื•ืช ืœืขืชื™ื ืงืจื•ื‘ื•ืช ื’ื™ืœื•ื™ ืกื˜ื˜ื™ ืœื‘ืœืชื™ ืืžื™ืŸ. ืฉืื™ืœืชื•ืช ืื™ื ืŸ ืขื•ื“ ื‘ืœื•ืงื™ื ืกื˜ื˜ื™ื™ื ืฉืœ ื˜ืงืกื˜ - ื”ืŸ ื ื•ืฆืจื•ืช, ืžื•ืชืืžื•ืช ืœืคืจืžื˜ืจื™ื ื•ืžื•ืขื‘ืจื•ืช ื‘ื™ืŸ ืฉื›ื‘ื•ืช ืขื ื”ืคืฉื˜ื” ื‘ื™ื ื™ื”ืŸ.

ืกืคืจื™ื•ืช ืฉืœ ืฆื“ ืฉืœื™ืฉื™, ื›ืœื™ ORM ื•ื‘ื•ื ื™ ืฉืื™ืœืชื•ืช ื“ื™ื ืžื™ื•ืช

ื”ืคืฉื˜ื” ื”ื™ื ืจื‘ืช ืขื•ืฆืžื”, ืื‘ืœ ื”ื™ื ื‘ืื” ืขื ืคืฉืจื•ืช. ื›ืœื™ ORM (ืžื™ืคื•ื™ ื™ื—ืกื™ ืื•ื‘ื™ื™ืงื˜) ื›ืžื• Hibernate, Entity Framework ื•-Sequelize ืžืคืฉื˜ื™ื ืืช ื”ืคื™ืชื•ื—, ืืš ื”ื ื’ื ืžืกื•ื•ื™ื ืืช ื”-SQL ืฉื ื•ืฆืจ ืžืชื—ืช ืœืžื›ืกื” ื”ืžื ื•ืข. ื”ืฉืื™ืœืชื•ืช ืื™ื ืŸ ื’ืœื•ื™ื•ืช ื‘ื‘ืกื™ืก ื”ืงื•ื“ - ื”ืŸ ืžื™ื•ืฆืจื•ืช ื‘ื–ืžืŸ ืจื™ืฆื” ื‘ื”ืชื‘ืกืก ืขืœ ืชืฆื•ืจื•ืช ื™ืฉื•ื™ื•ืช ืื• ื”ื’ื“ืจื•ืช ืžื•ื“ืœ.

ืื•ืชื• ื”ื“ื‘ืจ ื—ืœ ืขืœ ื‘ื•ื ื™ ืฉืื™ืœืชื•ืช ื•ืฉื›ื‘ื•ืช ื’ื™ืฉื” ืœื ืชื•ื ื™ื ื”ืžืจื›ื™ื‘ื•ืช SQL ื‘ืื•ืคืŸ ื“ื™ื ืžื™ ืžื›ื ื™ืกื•ืช ืฉื•ื ื•ืช. ื‘ืžืงืจื™ื ืืœื”, ื”-SQL ื‘ืคื•ืขืœ ืœืขื•ืœื ืœื ืžื•ืคื™ืข ื›ืžื—ืจื•ื–ืช ืžืœืื” ื‘ืงื•ื“ ื”ืžืงื•ืจ, ื•ื”ื•ื ืขืฉื•ื™ ืœื”ืฉืชื ื•ืช ื‘ื”ืงืฉืจ ืฉืœ ื–ืžืŸ ืจื™ืฆื”, ืงืœื˜ ืžืฉืชืžืฉ ืื• ืžืฆื‘ ื™ื™ืฉื•ื.

ื›ืชื•ืฆืื” ืžื›ืš, ืฆื•ื•ืชื™ื ืœื ื™ื›ื•ืœื™ื ื‘ืงืœื•ืช ืœื‘ืงืจ ืื• ืœืกืงื•ืจ ืืช ื”ืฉืื™ืœืชื•ืช ืฉื”ืžืขืจื›ืช ืฉืœื”ื ืชืœื•ื™ื” ื‘ื”ืŸ. ื‘ืขื™ื•ืช ื‘ื™ืฆื•ืขื™ื, ืคืขืจื™ ืื‘ื˜ื—ื” ื•ืฉื’ื™ืื•ืช ืœื•ื’ื™ืงื” ืขืฉื•ื™ื•ืช ืœื ื‘ื•ืข ืž-SQL ืฉื ื•ืฆืจ ื‘ืื•ืคืŸ ื“ื™ื ืžื™ ืฉืืฃ ืื—ื“ ืืคื™ืœื• ืœื ืžื‘ื™ืŸ ืฉืงื™ื™ื.

ืœืœื ืžืขืงื‘ ืื—ืจ ื–ืžืŸ ืจื™ืฆื” ืื• ื ื™ืชื•ื— ืžืงื•ืจ ืื™ื ื˜ืœื™ื’ื ื˜ื™, ื”ืฆื”ืจื•ืช ืืœื• ื ื•ืชืจื•ืช ื‘ืœืชื™ ื ืจืื•ืช.

ืงื‘ืฆื™ ืชืฆื•ืจื”, ืกืงืจื™ืคื˜ื™ื ื•ืกื‘ื™ื‘ื•ืช ืฆืœ

SQL ืœื ืชืžื™ื“ ืžืื•ื—ืกืŸ ื‘ืงื•ื“. ืœืขืชื™ื ืงืจื•ื‘ื•ืช ื”ื•ื ื—ื™ ื‘ืงื•ื‘ืฆื™ ืชืฆื•ืจื”, ืกืงืจื™ืคื˜ื™ื ืœื”ืขื‘ืจื”, ื›ืœื™ ืขื–ืจ ืžืขื˜ืคืช ืื• ืขื‘ื•ื“ื•ืช ETL. ืžืฉื™ืžื” ืžืชื•ื–ืžื ืช ืขืฉื•ื™ื” ืœื”ื›ื™ืœ ืฉืื™ืœืชื” ื’ื•ืœืžื™ืช ื”ืžื•ื˜ืžืขืช ื‘ืงื•ื‘ืฅ ืืฆื•ื•ื”. ืฆื™ื ื•ืจ ื ืชื•ื ื™ื ืขืฉื•ื™ ืœื˜ืขื•ืŸ ืชื‘ื ื™ื•ืช SQL ืžืชืฆื•ืจื•ืช JSON ืื• XML. ื›ืœื™ BI ืขืฉื•ื™ ืœื™ืฆื•ืจ ื•ืœืื—ืกืŸ ืœื•ื’ื™ืงื” ืฉืœ SQL ื‘ืคื•ืจืžื˜ ืคื ื™ืžื™ ืื• ื‘ืœื•ื— ื”ืžื—ื•ื•ื ื™ื ืฉืœ ื”ืžืฉืชืžืฉ.

ืกื‘ื™ื‘ื•ืช ืฆืœ - ืฉื™ื‘ื•ื˜ื™ื ื–ืžื ื™ื™ื, ืืจื’ื–ื™ ื—ื•ืœ ืœืžืคืชื—ื™ื ืื• ืžืขืจื›ื•ืช UAT ืฉื ืฉื›ื—ื• - ืžื›ื™ืœื•ืช ืœืขืชื™ื ืงืจื•ื‘ื•ืช ืฉืื™ืœืชื•ืช ืชืคืขื•ืœื™ื•ืช ืฉืœืขื•ืœื ืœื ื—ื•ื–ืจื•ืช ืœื‘ืงืจืช ื’ืจืกืื•ืช. ื”ืฆื”ืจื•ืช ืืœื• ืขืฉื•ื™ื•ืช ืœื”ื™ื•ืช ืžื•ืขืชืงื•ืช, ืœืฉื ื•ืช ืื• ืœืคืจื•ืก ืžื—ื“ืฉ ืœืœื ืกืงื™ืจื” ืื• ืชื™ืขื•ื“.

ืกื•ื’ ื–ื” ืฉืœ SQL ืงื™ื™ื ืžื—ื•ืฅ ืœื‘ืกื™ืก ื”ืงื•ื“ ื”ืจืฉืžื™. ื–ื” ืœื ืžื ื•ืกื—, ืœื ื ื™ืชืŸ ืœื—ื™ืคื•ืฉ, ื•ืœืขืชื™ื ืงืจื•ื‘ื•ืช ืืคื™ืœื• ืœื ื’ืœื•ื™ ืœืฆื•ื•ืชื™ ื”ื ื“ืกื”. ืขื ื–ืืช, ื”ื•ื ืžืžืœื ืชืคืงื™ื“ ืงืจื™ื˜ื™ ื‘ืื•ืคืŸ ื–ืจื™ืžืช ื”ื ืชื•ื ื™ื ื‘ืขืกืง.

ืื ืืชื” ืกื•ืจืง ืจืง ืงื•ื“ ื™ื™ืฉื•ื, ื—ืกืจื” ืœืš ืงื˜ื’ื•ืจื™ื” ืฉืœืžื” ืฉืœ SQL ืฉืžื ื™ืขื” ืขื‘ื•ื“ื•ืช, ืื™ื ื˜ื’ืจืฆื™ื•ืช ื•ื“ื•ื—ื•ืช ืžืฉืชืžืฉื™ื. ื•ื›ืืฉืจ ื”ื™ื’ื™ื•ืŸ ื”ืฆืœืœื™ื ื”ื–ื” ืกื•ื˜ื” ืžืžืขืจื›ื•ืช ืจืฉืžื™ื•ืช, ื”ืชื•ืฆืื” ื”ื™ื ื—ื•ืกืจ ืขืงื‘ื™ื•ืช, ื›ื™ืฉืœื•ืŸ ื•ื—ื•ื‘ ื˜ื›ื ื™ ืฉื›ืžืขื˜ ื‘ืœืชื™ ืืคืฉืจื™ ืœืคืชื•ืจ ืœืœื ื’ื™ืœื•ื™ ืžืœื.

ื›ืืฉืจ ืžืฆื™ืืช ื›ืœ ื”ืฆื”ืจืช SQL ื”ื•ืคื›ืช ืœื”ื™ื•ืช ืงืจื™ื˜ื™ืช

ื”ืฆื”ืจื•ืช SQL ื”ืŸ ืœื ืจืง ืคื™ืกื•ืช ืงื•ื“ - ื”ืŸ ื‘ื™ื˜ื•ื™ ื™ืฉื™ืจ ืฉืœ ื”ื™ื’ื™ื•ืŸ ืขืกืงื™, ืชื ื•ืขืช ื ืชื•ื ื™ื ื•ื”ืชื ื”ื’ื•ืช ืžืขืจื›ืช. ื‘ืžืขืจื›ื•ืช ืžื•ืจื›ื‘ื•ืช, ืื™ ื—ืฉื™ืคืช ืฉืื™ืœืชื” ืงืจื™ื˜ื™ืช ืื—ืช ื™ื›ื•ืœื” ืœื™ืฆื•ืจ ื ืงื•ื“ื•ืช ืขื™ื•ื•ืจื•ืช ืฉืžืฉืคื™ืขื•ืช ืขืœ ื›ืœ ื“ื‘ืจ, ื”ื—ืœ ืžื‘ื™ืฆื•ืขื™ื ื•ืขื“ ืชืื™ืžื•ืช. ื™ืฉื ื ืจื’ืขื™ ืžืคืชื— ืฉื‘ื”ื ืื™ืชื•ืจ ื›ืœ ืžืฉืคื˜ SQL ืขืœ ืคื ื™ ื›ืœ ื‘ืกื™ืก ื”ืงื•ื“ ืฉืœืš ืื™ื ื• ืื•ืคืฆื™ื•ื ืœื™ ืขื•ื“. ื–ื” ื”ื•ืคืš ืœื”ื™ื•ืช ืชื ืื™ ืžื•ืงื“ื ืœืฉื™ื ื•ื™, ื‘ื™ื˜ื—ื•ืŸ ืื• ื”ืžืฉื›ื™ื•ืช ืชืคืขื•ืœื™ืช.

ืกืขื™ืฃ ื–ื” ืžืชืืจ ืชืจื—ื™ืฉื™ื ื‘ืขืœื™ ื”ืฉืคืขื” ืจื‘ื” ืฉื‘ื”ื ื’ื™ืœื•ื™ SQL ื”ื•ืคืš ื—ื™ื•ื ื™ ื•ืžื“ื’ื™ืฉ ืืช ื”ืกื™ื›ื•ื ื™ื ืฉืœ ื”ืกืชืžื›ื•ืช ืขืœ ื ืจืื•ืช ื—ืœืงื™ืช.

Refactoring ืื• Replatforming ืฉื›ื‘ื•ืช ืžืกื“ ื ืชื•ื ื™ื

ืื—ื“ ื”ื˜ืจื™ื’ืจื™ื ื”ื ืคื•ืฆื™ื ื‘ื™ื•ืชืจ ืœื’ื™ืœื•ื™ SQL ื”ื•ื ืฉื™ื ื•ื™ ืžืชื•ื›ื ืŸ ื‘ืคืœื˜ืคื•ืจืžืช ืžืกื“ ื”ื ืชื•ื ื™ื. ื‘ื™ืŸ ืื ืืชื ืขื•ื‘ืจื™ื ืž-on-premise ืœืขื ืŸ, ืžืฉื ื™ื ืกืคืงื™ ืžืกื“ ื ืชื•ื ื™ื ืื• ืคืฉื•ื˜ ืžื‘ื ื™ื ืกื›ืžื•ืช ืžื—ื“ืฉ, ื—ืฉื•ื‘ ืœื“ืขืช ื”ื™ื›ืŸ ื›ืœ ื”ืฆื”ืจืช SQL ื ืžืฆืืช.

ืžืคืชื—ื™ื ืœื ื™ื›ื•ืœื™ื ืœืฉื—ื–ืจ ื‘ื‘ื˜ื—ื” ืงื•ื“ ืฉืžืงื™ื™ื ืื™ื ื˜ืจืืงืฆื™ื” ืขื ื ืชื•ื ื™ื ืื ื”ื ืœื ื™ื•ื“ืขื™ื ื”ื™ื›ืŸ ื”ืื™ื ื˜ืจืืงืฆื™ื” ื”ื–ื• ืžืชื—ื™ืœื”. ืคืกืคื•ืก ืฉืœ SQL ื™ื›ื•ืœ ืœื”ื•ื‘ื™ืœ ืœืคื•ื ืงืฆื™ื•ื ืœื™ื•ืช ืฉื‘ื•ืจื”, ืœืื•ื‘ื“ืŸ ื ืชื•ื ื™ื ืื• ืœื”ืชื ื”ื’ื•ืช ืฉื’ื•ื™ื” ืฉืœ ื™ื™ืฉื•ื ืœืื—ืจ ื”ืคืจื™ืกื”. ื–ื” ืžืกื•ื›ืŸ ื‘ืžื™ื•ื—ื“ ื‘ืžืขืจื›ื•ืช ื”ืžืฉืชืจืขื•ืช ืขืœ ืคื ื™ ืฉื›ื‘ื•ืช ืžืจื•ื‘ื•ืช ืื• ืžืฉืชืžืฉื•ืช ื‘-SQL ื‘ืชื•ืš ืกืงืจื™ืคื˜ื™ื ืžืฉื•ื‘ืฆื™ื, ืจื•ื˜ื™ื ื•ืช ืžื“ื•ืจ ืงื•ื“ื ืื• ืฉื™ืจื•ืชื™ ืฆื“ ืฉืœื™ืฉื™.

ืขืœ ื™ื“ื™ ื–ื™ื”ื•ื™ ื›ืœ ื”ืžืงื•ืžื•ืช ืฉ-SQL ื ื›ืชื‘, ืžื‘ื•ืฆืข ืื• ืžืคื ื”, ืฆื•ื•ืชื™ื ืžืงื‘ืœื™ื ืืช ื”ื‘ื”ื™ืจื•ืช ื”ื“ืจื•ืฉื” ื›ื“ื™:

  • ื”ืขืจื›ืช ืชืื™ืžื•ืช ื‘ื™ืŸ ืคืœื˜ืคื•ืจืžื•ืช
  • ืฉื›ืชื•ื‘ ืฉืื™ืœืชื•ืช ื‘ืืžืฆืขื•ืช ื”ื ื™ื‘ ืื• ื”ืžื‘ื ื” ื”ื—ื“ืฉื™ื
  • ื•ื“ื ืฉืืฃ ื—ืœืง ื‘ืžืขืจื›ืช ืื™ื ื• ืชืœื•ื™ ื‘ื”ื™ื’ื™ื•ืŸ ืžื™ื•ืฉืŸ ื‘ืฉืงื˜

ืืจื’ื•ืŸ ืžื—ื“ืฉ ืœืœื ื’ื™ืœื•ื™ SQL ื”ื•ื ื›ืžื• ืฉื™ืคื•ืฅ ื‘ื ื™ื™ืŸ ืžื‘ืœื™ ืœื“ืขืช ื”ื™ื›ืŸ ืขื•ื‘ืจื™ื ืงื•ื•ื™ ื”ื—ืฉืžืœ - ื–ื•ื”ื™ ื”ื’ื“ืจื” ืœืฉื™ื‘ื•ืฉ.

ื”ื›ื ื” ืœื”ืขื‘ืจืช ืขื ืŸ ืื• ืžื•ื“ืจื ื™ื–ืฆื™ื” ืฉืœ ืžื—ืกื ื™ ื ืชื•ื ื™ื

ืžืขื‘ืจ ืœืขื ืŸ ืžืฉื ื” ืืช ื”ืื•ืคืŸ ืฉื‘ื• ื ืชื•ื ื™ื ืžืื•ื—ืกื ื™ื, ื ืฉืืœื™ื ื‘ืฉืื™ืœืชื” ื•ืžืื•ื‘ื˜ื—ื™ื. ื‘ื™ืŸ ืื ืืชื ืžืืžืฆื™ื ืฉื™ืจื•ืชื™ ืžืกื“ ื ืชื•ื ื™ื ืžื ื•ื”ืœื™ื, ื‘ื•ื ื™ื ืื’ื ื ืชื•ื ื™ื ืื• ืžืขื‘ื™ืจื™ื ืขื•ืžืกื™ ื“ื™ื•ื•ื— ืœืžื—ืกืŸ ื—ื“ืฉ, ื ืจืื•ืช ืžืœืื” ืฉืœ SQL ื”ื™ื ื”ืžืคืชื— ืœื”ืฆืœื—ื”.

ื‘ืžื”ืœืš ื”ื”ืขื‘ืจื”, ืœืขืชื™ื ืงืจื•ื‘ื•ืช ื™ืฉ ืœืฉื›ืชื‘ ืฉืื™ืœืชื•ืช ืขื‘ื•ืจ ืžืขืจื›ืช ื”ื™ืขื“. ืคื•ื ืงืฆื™ื•ืช SQL, ืกื•ื’ื™ ื ืชื•ื ื™ื ื•ื“ืคื•ืกื™ ื’ื™ืฉื” ืžืฉืชื ื™ื ื‘ื™ืŸ ืคืœื˜ืคื•ืจืžื•ืช ื›ืžื• Oracle, SQL Server, PostgreSQL ืื• Snowflake. ืœืœื ืžืคื” ืฉืœ ืฉืื™ืœืชื•ืช ืงื™ื™ืžื•ืช, ืื™ ืืคืฉืจ ืœื”ื’ื“ื™ืจ ืืช ื”ื”ืขื‘ืจื” ื‘ืžื“ื•ื™ืง ืื• ืœื”ื‘ื˜ื™ื— ืฉืขื‘ื•ื“ื•ืช ืงืจื™ื˜ื™ื•ืช ื™ืชืคืงื“ื• ื›ืฆืคื•ื™ ืœืื—ืจ ื”ื”ืขื‘ืจื”.

ื™ืชืจื” ืžื›ืš, ืžืขืจื›ื•ืช ืžื•ื“ืจื ื™ื•ืช ื‘ื“ืจืš ื›ืœืœ ืžื™ื™ืฉืžื•ืช ื‘ืงืจื•ืช ื’ื™ืฉื” ื—ื“ืฉื•ืช, ืžื“ื™ื ื™ื•ืช ื”ืฆืคื ื” ืื• ื ื™ื˜ื•ืจ ื‘ื™ืฆื•ืขื™ื. ื›ืœ SQL ืฉื‘ื•ืจื— ืžื–ื™ื”ื•ื™ ื™ื›ื•ืœ ืœืขืงื•ืฃ ืืช ื”ืคืงื“ื™ื ื”ืœืœื• ื•ืœื”ืคื•ืš ืœืžืงื•ืจ ืœืกื™ื›ื•ืŸ ืœื ืžืคื•ืงื—.

ื’ื™ืœื•ื™ SQL ืžื‘ื˜ื™ื— ืฉื”ื”ื’ื™ืจื” ืœื ืจืง ืžื•ืฆืœื—ืช ืžื‘ื—ื™ื ื” ื˜ื›ื ื™ืช, ืืœื ื’ื ืžืื•ื‘ื˜ื—ืช, ืชื•ืืžืช ื•ืžืชืื™ืžื” ืœื‘ื™ืฆื•ืขื™ื.

ื‘ื™ืงื•ืจืช ืขื‘ื•ืจ ืชืื™ืžื•ืช, ืื‘ื˜ื—ื” ืื• ื‘ืงืจืช ื’ื™ืฉื”

ืžื‘ืงืจื™ื ื•ืฆื•ื•ืชื™ ืฆื™ื•ืช ืฆืจื™ื›ื™ื ืœื”ื‘ื™ืŸ ื›ื™ืฆื“ ื ืฉืืœื™ื ืฉืื™ืœืชื•ืช ื‘ื ืชื•ื ื™ื ืจื’ื™ืฉื™ื, ืžื™ ื ื™ื’ืฉ ืืœื™ื”ื ื•ื”ื™ื›ืŸ ืžื™ื•ืฉืžืช ืœื•ื’ื™ืงืช ื”ื’ื™ืฉื” ื”ื–ื•. ืื SQL ืžืคื•ื–ืจ ืขืœ ืคื ื™ ืงื•ื“ ืœื ืžืชื•ืขื“, ืกืงืจื™ืคื˜ื™ื ื—ื™ืฆื•ื ื™ื™ื ืื• ืœื•ื—ื•ืช ืžื—ื•ื•ื ื™ื ืœืœื ื’ืจืกืื•ืช, ื”ืคื™ืงื•ื— ื”ื–ื” ื”ื•ืคืš ื›ืžืขื˜ ื‘ืœืชื™ ืืคืฉืจื™.

ืœื“ื•ื’ืžื”:

  • ื“ื•ื— ื”ืžื‘ืงืฉ ืžื™ื“ืข ืื™ืฉื™ ืžื–ื”ื” (PII) ื—ื™ื™ื‘ ืœืขืžื•ื“ ื‘ืžื“ื™ื ื™ื•ืช ื”ื˜ื™ืคื•ืœ ื‘ื ืชื•ื ื™ื
  • ืฉืื™ืœืชืช ื’ื™ืฉืช ืžืฉืชืžืฉ ืขืฉื•ื™ื” ืœื”ื–ื“ืงืง ืœืกื™ื ื•ืŸ ืžื‘ื•ืกืก ืชืคืงื™ื“ื™ื ื›ื“ื™ ืœืขืžื•ื“ ื‘ื“ืจื™ืฉื•ืช ื”ื‘ื™ืงื•ืจืช ื”ืคื ื™ืžื™ืช
  • ืกืงื™ืจืช GDPR ืื• HIPAA ืขืฉื•ื™ื” ืœื“ืจื•ืฉ ืžืขืงื‘ ืžืœื ืฉืœ ืื•ืคืŸ ื”ื’ื™ืฉื” ืœื ืชื•ื ื™ื ืจืคื•ืื™ื™ื ืื• ืคื™ื ื ืกื™ื™ื ื‘ืžืขืจื›ื•ืช ืฉื•ื ื•ืช

ืœืœื ื ืจืื•ืช ืžืœืื” ืฉืœ SQL, ืืจื’ื•ื ื™ื ืื™ื ื ื™ื›ื•ืœื™ื ืœืืžืช ืื ื‘ืงืจื•ืช ืืœื” ืžื™ื•ืฉืžื•ืช ื‘ืื•ืคืŸ ืขืงื‘ื™ - ืื• ื‘ื›ืœืœ.

ืžืกื’ืจื•ืช ืชืื™ืžื•ืช ืžื•ื“ืจื ื™ื•ืช ืžืฆืคื•ืช ืœื”ื•ื›ื—ื” ื˜ื›ื ื™ืช ืฉืœ ืžืžืฉืœ. ื’ื™ืœื•ื™ SQL ืขื•ื–ืจ ืœื’ืฉืจ ืขืœ ื”ืคืขืจ ื”ื–ื” ืขืœ ื™ื“ื™ ื—ืฉื™ืคืช ื›ืœ ืœื•ื’ื™ืงื” ืฉืœ ืฉืื™ืœืชื•ืช, ืœืœื ืงืฉืจ ืœืžืงื•ื ืžื’ื•ืจื™ื•.

ืžืขืงื‘ ืื—ืจ ื›ืœืœื™ื ืขืกืงื™ื™ื ืื• ืฉื•ืฉืœืช ื ืชื•ื ื™ื ื‘ืืžืฆืขื•ืช SQL

ื”ื”ื™ื’ื™ื•ืŸ ื”ืขืกืงื™ ื—ื™ ืœืขืชื™ื ืงืจื•ื‘ื•ืช ื‘-SQL. ื›ืœืœื™ ืชืžื—ื•ืจ, ื—ื™ืฉื•ื‘ื™ ืžืก, ื‘ื“ื™ืงื•ืช ื–ื›ืื•ืช ื•ืกืคื™ ืกื™ื›ื•ืŸ ืขืฉื•ื™ื™ื ืœื”ื™ื•ืช ืžืงื•ื“ื“ื™ื ื‘ืฉืื™ืœืชื•ืช ื”ืงื™ื™ืžื•ืช ืžื—ื•ืฅ ืœืงื•ื“ ื”ืืคืœื™ืงืฆื™ื”. ืฉืื™ืœืชื•ืช ืืœื• ืžื ื™ื‘ื•ืช ื”ื—ืœื˜ื•ืช, ื“ื•ื—ื•ืช ื•ื—ื•ื•ื™ื•ืช ืœืงื•ื—ื•ืช.

ื›ืืฉืจ ืืจื’ื•ื ื™ื ืžื ืกื™ื ืœืฉืคืจ ืืช ื”ืฉืงื™ืคื•ืช, ืœื‘ื ื•ืช ืฉื•ืฉืœืช ื ืชื•ื ื™ื ืื• ืœืื—ื“ ืืช ื”ื”ื™ื’ื™ื•ืŸ ื‘ืฉื™ืจื•ืชื™ื ืžืฉื•ืชืคื™ื, ืขืœื™ื”ื ืœืืชืจ ืชื—ื™ืœื” ื›ืœ ื’ืจืกื” ืฉืœ ื›ืœืœื™ื ืืœื”. ืื SQL ืžืฉื•ื›ืคืœ ื‘ื™ืŸ ืžืขืจื›ื•ืช, ื ื•ืฆืจื•ืช ื—ื•ืกืจ ืขืงื‘ื™ื•ืช. ื™ื™ืชื›ืŸ ืฉื’ืจืกื” ืื—ืช ืชืชืขื“ื›ืŸ ื‘ืขื•ื“ ืื—ืจืช ื ืฉืืจืช ืžืื—ื•ืจ.

ืขืœ ื™ื“ื™ ื–ื™ื”ื•ื™ ื›ืœ ื”ืžื•ืคืขื™ื ืฉืœ SQL ื ื•ืฉืืช ืœื•ื’ื™ืงื”, ืฆื•ื•ืชื™ื ื™ื›ื•ืœื™ื:

  • ื™ื™ืฉืจ ื›ืœืœื™ื ืขืกืงื™ื™ื ื‘ื™ืŸ ืžืขืจื›ื•ืช
  • ืžื ื™ืขืช ืกื—ืฃ ื ืชื•ื ื™ื ื‘ื™ืŸ ืžืขืจื›ื•ืช ืชืคืขื•ืœื™ื•ืช ื•ืื ืœื™ื˜ื™ื•ืช
  • ื™ื™ืขืœ ื‘ื™ืงื•ืจืช, ื‘ื“ื™ืงื•ืช ื•ืฉื™ืคื•ืจื™ื ืขืชื™ื“ื™ื™ื

ื’ื™ืœื•ื™ SQL ื”ื•ืคืš ืœืžืคืชื— ืœืคืชื™ื—ืช ืขืงื‘ื™ื•ืช ื•ืืžื•ืŸ ื‘ื”ืชื ื”ื’ื•ืช ื”ืžืขืจื›ืช - ื‘ืžื™ื•ื—ื“ ื›ืืฉืจ ื”ื”ื™ื’ื™ื•ืŸ ื”ืขืกืงื™ ื—ืฉื•ื‘ ืžื›ื“ื™ ืœื”ื™ื•ืช ืžืคื•ื–ืจ ืื• ืœื ืžืชื•ืขื“.

ื›ื™ืฆื“ ืœื–ื”ื•ืช SQL ื‘ืกื‘ื™ื‘ื•ืช ืกื˜ื˜ื™ื•ืช, ื“ื™ื ืžื™ื•ืช ื•ื—ื•ืฆื•ืช ืฉืคื•ืช

ื‘ืžืขืจื›ื•ืช ืืจื’ื•ื ื™ื•ืช ืžื•ื“ืจื ื™ื•ืช, SQL ื›ื‘ืจ ืœื ืžื•ื’ื‘ืœ ืœืคืฉื•ื˜ SELECT ื”ืฆื”ืจื•ืช ื‘ืชื•ืš ื ื”ืœื™ื ืžืื•ื—ืกื ื™ื. ื”ื•ื ืžื•ืคืฅ ืขืœ ืคื ื™ ืฉืคื•ืช, ื˜ื›ื ื•ืœื•ื’ื™ื•ืช ื•ื”ืงืฉืจื™ ื–ืžืŸ ืจื™ืฆื” ืžื’ื•ื•ื ื™ื. ื›ื“ื™ ืœื’ืœื•ืช ืืช ื›ืœ ื”-SQL ื‘ืฆื•ืจื” ื™ืขื™ืœื”, ืฆื•ื•ืชื™ื ื—ื™ื™ื‘ื™ื ืœื”ื™ื•ืช ืžืกื•ื’ืœื™ื ืœื–ื”ื•ืช ืื•ืชื• ื‘ืงื•ื“ ืกื˜ื˜ื™, ื‘ืœื•ื’ื™ืงื” ื“ื™ื ืžื™ืช ื•ืœืจื•ื—ื‘ ืžืขืจื›ื•ืช ืืงื•ืœื•ื’ื™ื•ืช ืžืจื•ื‘ื•ืช ืฉืœ ืฉืคื•ืช - ื›ืœ ืื—ืช ืขื ืืชื’ืจื™ื ื™ื™ื—ื•ื“ื™ื™ื.

SQL ืกื˜ื˜ื™: ืฉืื™ืœืชื•ืช ื‘ืจืžืช ืคื ื™ ื”ืฉื˜ื— ืžื•ืกืชืจื•ืช ื‘ืขื™ืŸ ืจื’ื™ืœื”

SQL ืกื˜ื˜ื™ ื”ื•ื ื”ืงืœ ื‘ื™ื•ืชืจ ืœื–ื™ื”ื•ื™. ืืœื• ื”ืŸ ืฉืื™ืœืชื•ืช ืžืงื•ื“ื“ื•ืช ืงืฉื™ื—ื•ืช ื”ืžื•ื˜ืžืขื•ืช ื™ืฉื™ืจื•ืช ื‘ื‘ืกื™ืก ื”ืงื•ื“. ื”ื ืขืฉื•ื™ื™ื ืœื”ื•ืคื™ืข ื›ืžื—ืจื•ื–ื•ืช ืžืจื•ื‘ื•ืช ืฉื•ืจื•ืช, ื”ืžื•ื˜ื‘ืขื•ืช ื‘ืชื•ื›ื EXEC SQL ื‘ืœื•ืงื™ื, ืื• ืžื•ื‘ื ื™ื ื›ื—ืœืง ืžืงื•ื‘ืฆื™ ืชืฆื•ืจื” ืื• ื”ื’ื™ืจื”.

ื“ื•ื’ืžืื•ืช ื›ื•ืœืœื•ืช:

  • ืชื•ื›ื ื™ื•ืช COBOL ื‘ืืžืฆืขื•ืช EXEC SQL ื”ืฆื”ืจื•ืช
  • ื”ืฆื”ืจื•ืช SQL ืžื•ื˜ื‘ืขื•ืช ื™ืฉื™ืจื•ืช ื‘-Java ืื• Python
  • SQL ืžื•ื ื—ื” ืชืฆื•ืจื” ื‘-YAML, XML ืื• .sql ืงื‘ืฆื™ื

ื–ื™ื”ื•ื™ ื‘ืžืงืจื” ื–ื” ื›ื•ืœืœ ื”ืชืืžืช ื“ืคื•ืกื™ื ื•ื ื™ืชื•ื— ืชื—ื‘ื™ืจ. ืขื ื–ืืช, ืฉืื™ืœืชื•ืช ืกื˜ื˜ื™ื•ืช ืขื“ื™ื™ืŸ ืขืฉื•ื™ื•ืช ืœื”ื—ืžื™ืฅ ืื ืžืื•ื—ืกื ื•ืช ื‘ืžื™ืงื•ืžื™ ืงื‘ืฆื™ื ืœื ืฉื’ืจืชื™ื™ื, ืžืขื•ืฆื‘ื•ืช ื‘ืื•ืคืŸ ืœื ืกื“ื™ืจ ืื• ืžืชืคืฉื˜ื•ืช ืขืœ ืคื ื™ ื‘ืกื™ืกื™ ืงื•ื“ ื’ื“ื•ืœื™ื ืžื“ื•ืจ ืงื•ื“ื ืฉื”ืชืคืชื—ื• ื‘ืžืฉืš ืขืฉืจื•ืช ืฉื ื™ื.

SQL ื“ื™ื ืžื™: ืฉืื™ืœืชื•ืช ืฉื ื‘ื ื•ืช ื‘ื–ืžืŸ ืจื™ืฆื”

SQL ื“ื™ื ืžื™ ืžืฆื™ื’ ืžื•ืจื›ื‘ื•ืช ืžืฉืžืขื•ืชื™ืช ื™ื•ืชืจ. ื‘ืžืงื•ื ืžื—ืจื•ื–ืช ืฉืื™ืœืชื” ืงื‘ื•ืขื”, ืืœื” ืžื•ืจื›ื‘ื™ื ื‘ืื•ืคืŸ ืคืจื•ื’ืจืžื˜ื™ - ื‘ืืžืฆืขื•ืช ืฉืจืฉื•ืจ ืžื—ืจื•ื–ื•ืช, ืœื•ื’ื™ืงื” ืžื•ืชื ื™ืช ืื• ืงืœื˜ ืžืฉืชืžืฉ - ืœืคื ื™ ื”ื‘ื™ืฆื•ืข.

ื“ื•ื’ืžืื•ืช ื›ื•ืœืœื•ืช:

  • ืคื•ื ืงืฆื™ื•ืช JavaScript ืื• Python ื‘ื•ื ื•ืช ืžื—ืจื•ื–ื•ืช ืฉืื™ืœืชื•ืช ื‘ืื•ืคืŸ ื“ื™ื ืžื™
  • SQL ื ื‘ื ื” ื‘ืชื•ืš ืคืจื•ืฆื“ื•ืจื•ืช ืžืื•ื—ืกื ื•ืช ื‘ืืžืฆืขื•ืช ืžืฉืชื ื™ื
  • ืฉื›ื‘ื•ืช ื’ื™ืฉื” ืœื ืชื•ื ื™ื ื”ื™ื•ืฆืจื•ืช SQL ื‘ืืžืฆืขื•ืช ื‘ื•ื ื™ ืชื‘ื ื™ื•ืช ืื• ืฉืื™ืœืชื•ืช

ืœื ืชืžื™ื“ ื ื™ืชืŸ ืœื–ื”ื•ืช ืฉืื™ืœืชื•ืช ืืœื• ื‘ืืžืฆืขื•ืช ืกืจื™ืงื” ื‘ืกื™ืกื™ืช, ืžื›ื™ื•ื•ืŸ ืฉื™ื™ืชื›ืŸ ืฉื”ืŸ ืœื ืงื™ื™ืžื•ืช ื‘ืžืœื•ืืŸ ืขื“ ืœื–ืžืŸ ื”ืจื™ืฆื”. ื–ื™ื”ื•ื™ื ื“ื•ืจืฉ ื ื™ืชื•ื— ื–ืจื™ืžืช ืงื•ื“, ืžืขืงื‘ ืื—ืจ ืžืฉืชื ื™ื, ื•ื‘ืžืงืจื™ื ืžืกื•ื™ืžื™ื ื”ื“ืžื™ื™ืช ื ืชื™ื‘ื™ ื‘ื™ืฆื•ืข ื›ื“ื™ ืœื”ื‘ื™ืŸ ื›ื™ืฆื“ ืžื•ืจื›ื‘ื•ืช ืฉืื™ืœืชื•ืช.

ืžื•ืจื›ื‘ื•ืช ื‘ื™ืŸ ืฉืคื•ืช: SQL ื‘ืžืขืจื›ื•ืช ืคื•ืœื™ื’ืœื•ื˜

ืžืขืจื›ื•ืช ืืจื’ื•ื ื™ื•ืช ื›ื•ืœืœื•ืช ืœืจื•ื‘ ืฉืคื•ืช ืžืจื•ื‘ื•ืช. SQL ืขืฉื•ื™ ืœื—ื™ื•ืช ื‘-COBOL, Java, Python, .NET, PL/SQL, ืื• ืืคื™ืœื• ืœื”ื™ื•ื•ืฆืจ ืขืœ ื™ื“ื™ ืคืœื˜ืคื•ืจืžื•ืช ื ืžื•ื›ื•ืช ืงื•ื“ ืื• ืžืกื’ืจื•ืช ืื™ื ื˜ื’ืจืฆื™ื”. ื›ืœ ืฉืคื” ืžื˜ืคืœืช ื‘-SQL ื‘ืฆื•ืจื” ืฉื•ื ื” - ื—ืœืงืŸ ื—ื•ืฉืคื•ืช ืื•ืชื• ื‘ื‘ื™ืจื•ืจ, ื‘ืขื•ื“ ืฉืื—ืจื•ืช ืžืคืฉื˜ื•ืช ืื• ืžืกืชื™ืจื•ืช ืื•ืชื• ืœื—ืœื•ื˜ื™ืŸ.

ื’ื™ืœื•ื™ ื‘ื™ืŸ ืฉืคื•ืช ื“ื•ืจืฉ ื”ื‘ื ื” ืื—ื™ื“ื” ืฉืœ:

  • ืกืคืจื™ื•ืช ื’ื™ืฉื” ืœื‘ืกื™ืกื™ ื ืชื•ื ื™ื ืกืคืฆื™ืคื™ื™ื ืœืฉืคื”
  • ื”ืคืฉื˜ื•ืช ORM ื•ืžื•ืกื›ืžื•ืช ืกืคืฆื™ืคื™ื•ืช ืœืžืกื’ืจืช
  • ืžื•ื“ื•ืœื™ื ืื• ื›ืœื™ ืขื–ืจ ืžืฉื•ืชืคื™ื ื”ืžืฉืžืฉื™ื ืœืจื™ื›ื•ื– ืœื•ื’ื™ืงื” ืฉืœ ืฉืื™ืœืชื•ืช

ื›ื“ื™ ืœื”ืฆืœื™ื—, ืฆื•ื•ืชื™ื ื–ืงื•ืงื™ื ืœื›ืœื™ ืขื‘ื•ื“ื” ืฉืชื•ืžื›ื™ื ื‘ืกื‘ื™ื‘ื•ืช ืžืจื•ื‘ื•ืช ืฉืคื•ืช, ืžืชืื ืœื•ื’ื™ืงืช ืฉืื™ืœืชื•ืช ื‘ื™ืŸ ืงื‘ืฆื™ื ื•ืฉื™ืจื•ืชื™ื ื•ืžื–ื”ื” SQL ืœื ืžืฉื ื” ื”ื™ื›ืŸ ื”ื•ื ื›ืชื•ื‘ ืื• ื›ื™ืฆื“ ื”ื•ื ื‘ื ื•ื™.

ื ื™ืชื•ื— ื”ืžื—ืกื ื™ืช: ื”ื™ื›ืŸ ื•ืื™ืš SQL ื‘ื ื•ื™, ืžื•ืกืชืจ ื•ืžื‘ื•ืฆืข

SQL ืžื‘ื•ืฆืข ืจืง ืœืขืชื™ื ืจื—ื•ืงื•ืช ื‘ื“ื™ื•ืง ื”ื™ื›ืŸ ืฉื”ื•ื ื›ืชื•ื‘. ื‘ืจื•ื‘ ื”ืกื‘ื™ื‘ื•ืช ื”ืืจื’ื•ื ื™ื•ืช, ื‘ื ื™ื™ืช SQL ืžืฉื•ืœื‘ืช ื‘ืืžืฆืขื•ืช ืงืจื™ืื•ืช ืœืคื•ื ืงืฆื™ื•ืช, ืชื•ื›ื ื•ืช ื‘ื™ื ื™ื™ื ื•ื›ืœื™ ืขื–ืจ - ืžื” ืฉื”ื•ืคืš ืืช ื”ื–ื™ื”ื•ื™ ืœืขื ื™ื™ืŸ ืฉืœ ื ื™ืชื•ื— ืžื—ืกื ื™ืช, ืœื ืจืง ืกืจื™ืงืช ื˜ืงืกื˜. ื›ื“ื™ ืœืืชืจ ื›ืœ ืžื•ืคืข ืฉืœ SQL ื‘ืฆื•ืจื” ืžื“ื•ื™ืงืช, ื”ืฆื•ื•ืชื™ื ื—ื™ื™ื‘ื™ื ืœื ืชื— ืืช ื”ืขืจื™ืžื” ื”ืžืœืื” ื•ืœื”ื‘ื™ืŸ ื›ื™ืฆื“ ืฉืื™ืœืชื•ืช ืžื•ืขื‘ืจื•ืช, ืžืจื›ื™ื‘ื•ืช ืื• ืžื•ืคืฉื˜ื•ืช ืœืื•ืจืš ื”ื“ืจืš.

ืฉื›ื‘ื•ืช ืžื—ืกื ื™ืช ื™ื™ืฉื•ืžื™ื ื”ืžืฉืคื™ืขื•ืช ืขืœ ื’ื™ืœื•ื™ SQL

ืขืจื™ืžืช ืชื•ื›ื ื” ื˜ื™ืคื•ืกื™ืช ืžื•ืจื›ื‘ืช ืžืฉื›ื‘ื•ืช ืžืจื•ื‘ื•ืช - ืžืฆื’ืช, ืœื•ื’ื™ืงื” ืขืกืงื™ืช, ื”ืชืžื“ื” ื•ืื™ื ื˜ื’ืจืฆื™ื”. ื ื™ืชืŸ ืœื”ืฆื™ื’ ืื• ืœืฉื ื•ืช ืืช SQL ื‘ื›ืœ ืื—ืช ืžื”ื ืงื•ื“ื•ืช ื”ืœืœื•.

ืœื“ื•ื’ืžื”:

  • ื‘ื™ื™ืฉื•ืžื™ ืื™ื ื˜ืจื ื˜, ืงืœื˜ ืžืฉืชืžืฉ ืขืฉื•ื™ ืœื”ืฉืคื™ืข ืขืœ ืฉืื™ืœืชื” ืฉื ื‘ื ืชื” ืฉืชื™ื™ื ืื• ืฉืœื•ืฉ ืฉื›ื‘ื•ืช ืœืžื˜ื”.
  • ื‘ืชื•ื›ื ื•ืช ืฉื•ืœื—ื ื™ื•ืช ืื• ืชื•ื›ื ื™ื•ืช ืžื™ื™ื ืคืจื™ื™ื, ืคืจืžื˜ืจื™ื ืขืฉื•ื™ื™ื ืœื–ืจื•ื ื“ืจืš ืžืกืคืจ ืžื•ื“ื•ืœื™ื ืœืคื ื™ ืฉื”ื ืžื•ื˜ื‘ืขื™ื ื‘-SQL.
  • ืคืœื˜ืคื•ืจืžื•ืช ืชื•ื›ื ื” ื‘ื™ื ื•ื ื™ืช ื›ืžื• ื›ืœื™ ETL ืื• ืžื ื•ืขื™ ื–ืจื™ืžืช ืขื‘ื•ื“ื” ืขืฉื•ื™ื•ืช ืœื”ื—ื“ื™ืจ SQL ืœืคืขื•ืœื•ืช ืžืกื“ ื ืชื•ื ื™ื ืžื‘ืœื™ ืฉื–ื” ื™ื”ื™ื” ื’ืœื•ื™ ื‘ืžืื’ืจื™ ื”ืžืงื•ืจ.

ื ื™ืชื•ื— ื™ืขื™ืœ ื›ื•ืœืœ ืžืขืงื‘ ืื—ืจ ื–ืจื™ืžื•ืช ืืœื” ืžืœืžืขืœื” ืœืžื˜ื”:

  1. ืงืœื˜ ืื• ืื™ืจื•ืข ืขืกืงื™
  2. ื”ื™ื’ื™ื•ืŸ ืžื˜ืคืœ ืื• ืฉื™ืจื•ืช
  3. ืงื•ื“ ื’ื™ืฉื” ืœื ืชื•ื ื™ื
  4. ื‘ื ื™ื™ื” ื•ื‘ื™ืฆื•ืข ืฉืœ SQL

ืขืœ ื™ื“ื™ ื ื™ืชื•ื— ื›ืœ ืฉื›ื‘ื”, ืฆื•ื•ืชื™ื ื™ื›ื•ืœื™ื ืœืฉื—ื–ืจ ืœื ืจืง ืืช ื”-SQL ื”ืžืฉืžืฉ, ืืœื ื’ื ืืช ื”ืื•ืคืŸ ืฉื‘ื• ื”ื•ื ื ื•ืฆืจ - ื—ื™ื•ื ื™ ืœื ื™ืชื•ื— ื•ืชืื™ืžื•ืช ื“ื™ื ืžื™ ืฉืœ ืฉืื™ืœืชื•ืช.

ื‘ื ื™ื™ืช SQL ื‘ืชื•ืš ื›ืœื™ ืขื–ืจ ื•ืคื•ื ืงืฆื™ื•ืช Wrapper

ื‘ืžืขืจื›ื•ืช ืžื•ื‘ื ื•ืช ื”ื™ื˜ื‘, ื™ืฆื™ืจืช SQL ืžื•ืคืฉื˜ืช ืœืจื•ื‘ ืœื›ืœื™ ืฉื™ืจื•ืช ืื• ืœืฉื™ื˜ื•ืช ืขื˜ื™ืคื”. ืืœื” ืžืจื›ื–ื™ื ืืช ื”ื”ื™ื’ื™ื•ืŸ ื•ื”ื•ืคื›ื™ื ืืช ื”ืงื•ื“ ืœืฉื™ืžื•ืฉ ื—ื•ื–ืจ - ืืš ื”ื ื’ื ืžืกืชื™ืจื™ื ืืช ื‘ื ื™ื™ืช ื”-SQL ื‘ืคื•ืขืœ ืžืื—ื•ืจื™ ืฉื™ื˜ื•ืช ื”ืžืžืฉืง.

ืœื“ื•ื’ืžื”, getCustomerOrders(customerId) ื”ืฉื™ื˜ื” ืขืฉื•ื™ื” ืœื‘ื ื•ืช ื•ืœื‘ืฆืข ื‘ืื•ืคืŸ ืคื ื™ืžื™ ื SELECT ืฉืื™ืœืชื”, ืื‘ืœ ื”ื”ื™ื’ื™ื•ืŸ ื”ื–ื” ืขืฉื•ื™ ืœื—ื™ื•ืช ื‘ืžื—ืœืงืช ืฉื™ืจื•ืช ื ืคืจื“ืช ืื• ื‘ืฉื™ืจื•ืช ืžื•ื–ืจืง.

ื‘ืžืงืจื™ื ืืœื”, ื”ื ื™ืชื•ื— ื“ื•ืจืฉ:

  • ืคืชืจื•ืŸ ื”ืคื ื™ื•ืช ืœืฉื™ื˜ื•ืช ื•ื”ื™ืจืจื›ื™ื•ืช ืžื—ืœืงื•ืช
  • ื ื™ืชื•ื— ืงื‘ืฆื™ ืฉื™ืจื•ืช ื•ืกืคืจื™ื•ืช ืžืฉื•ืชืคื•ืช
  • ืžื™ืคื•ื™ ื›ื ื™ืกื•ืช ืฉืœ ืคื•ื ืงืฆื™ื•ืช ืœืฉื‘ืจื™ ืฉืื™ืœืชื•ืช

ืกืจื™ืงื” ืจื“ื•ื“ื” ืชื—ืžื™ืฅ ืืช ืืœื” ืœื—ืœื•ื˜ื™ืŸ. ื ื™ืชื•ื— ืžื—ืกื ื™ืช ืขืžื•ืง ืžืฉื—ื–ืจ ืืช ื ืชื™ื‘ ื”-SQL ื‘ืคื•ืขืœ, ืžื” ืฉื”ื•ืคืš ืืช ื”ื”ื™ื’ื™ื•ืŸ ื”ื—ื‘ื•ื™ ืœื’ืœื•ื™ ืฉื•ื‘.

ื”ื‘ื ืช ื”ืงืฉืจ ื‘ื™ืฆื•ืข ื•ื˜ืจื™ื’ืจื™ื ืฉืœ SQL

SQL ืžืกื•ื™ื ืื™ื ื• ื ืงืจื ื‘ืžืคื•ืจืฉ ื‘ืงื•ื“ - ื”ื•ื ืžื•ืคืขืœ ืขืœ ื™ื“ื™ ืื™ืจื•ืขื™ื, ืžืื–ื™ื ื™ื ืื• ืชื•ืคืขื•ืช ืœื•ื•ืื™. ืžื ื•ืข ื›ืœืœื™ื ืขืฉื•ื™ ืœื”ืขืจื™ืš ืชื ืื™ื ื•ืœืงืจื•ื ืœ-SQL ืขืœ ืกืžืš ืชื•ืฆืื•ืช ื”ืชืืžื”. ืžืชื–ืžืŸ ืขืฉื•ื™ ืœื”ืคืขื™ืœ ืกืงืจื™ืคื˜ื™ื ืฉืœ ืขื‘ื•ื“ื” ื”ืžื›ื™ืœื™ื ืฉืื™ืœืชื•ืช. ืฉืœื™ื—ืช ื˜ื•ืคืก ืขืฉื•ื™ื” ืœื”ืคืขื™ืœ ื–ืจื™ืžืช ืขื‘ื•ื“ื” ืขื•ืจืคื™ืช ืฉืžืคืขื™ืœื” ืคืจื•ืฆื“ื•ืจื” ืžืื•ื—ืกื ืช.

ื ื™ืชื•ื— ื”ืขืจื™ืžื” ื›ื•ืœืœ ืœื›ื™ื“ื”:

  • ื˜ืจื™ื’ืจื™ื ืœื‘ื™ืฆื•ืข ืžื‘ื•ืกืก ืื™ืจื•ืขื™ื
  • ืฉื›ื‘ื•ืช ื–ืจื™ืžืช ืขื‘ื•ื“ื” ืื• ืชื–ืžื•ืจ ืขื‘ื•ื“ื”
  • ื•ื•ื™ ืžื—ื–ื•ืจ ื—ื™ื™ื ืฉืœ ORM (ืœืžืฉืœ, ื˜ืขื™ื ื” ืžื•ืงื“ืžืช, ืœืื—ืจ ืขื“ื›ื•ืŸ, ื˜ืขื™ื ื” ืขืฆืœื”)

ืžื‘ืœื™ ืœืงื—ืช ื‘ื—ืฉื‘ื•ืŸ ืืช ื”ืงืฉืจื™ ื”ื‘ื™ืฆื•ืข ื”ืœืœื•, ืฆื•ื•ืชื™ื ื™ื—ืžื™ืฆื• ืฉืื™ืœืชื•ืช ื—ืฉื•ื‘ื•ืช ื”ืžื•ืคื™ืขื•ืช ืจืง ื‘ืžื”ืœืš ื–ืจื™ืžื•ืช ืกืคืฆื™ืคื™ื•ืช ืื• ื‘ืกื‘ื™ื‘ื•ืช ื™ื™ืฆื•ืจ.

ื ื™ืชื•ื— ื‘ืจืžืช ืžื—ืกื ื™ืช ืžื—ื‘ืจ ืืช SQL ืœื ืจืง ืœืงื‘ืฆื™ื, ืืœื ืœืชื”ืœื™ืš ื”ืขืกืงื™ ื”ืžืœื - ืžื”ืงืœื˜ ืœื‘ื™ืฆื•ืข ื•ืขื“ ืœืชื•ืฆืื”. ื–ื” ื”ื•ืคืš ื’ื™ืœื•ื™ ื’ื•ืœืžื™ ืœื ื™ืชื•ื— ืžืฉืžืขื•ืชื™.

ื”ืื ื˜ื•ืžื™ื” ืฉืœ ื’ื™ืœื•ื™ ืฉืื™ืœืชื•ืช: ืžืžื—ืจื•ื–ื•ืช ืœื”ืงืฉืจ ื‘ื™ืฆื•ืข

ืžืฆื™ืืช SQL ื‘ืกื‘ื™ื‘ื” ืืจื’ื•ื ื™ืช ืื™ื ื ื” ืจืง ื‘ื–ื™ื”ื•ื™ ืžื—ืจื•ื–ืช ื˜ืงืกื˜ โ€“ ืืœื ื‘ื”ื‘ื ื” ื›ื™ืฆื“ ื”ืžื—ืจื•ื–ืช ื”ื–ื• ื ื•ืฆืจืช, ื”ื™ื›ืŸ ื”ื™ื ืžืื•ื—ืกื ืช ื•ื›ื™ืฆื“ ื”ื™ื ืžื‘ื•ืฆืขืช ื‘ื”ืงืฉืจ ืฉืœ ื”ืžืขืจื›ืช. ื’ื™ืœื•ื™ ืฉืื™ืœืชื•ืช ื™ืขื™ืœ ื“ื•ืจืฉ ืคื™ืจื•ืง ืฉื›ื‘ื•ืช ืžืจื•ื‘ื•ืช ืฉืœ ื˜ืจื ืกืคื•ืจืžืฆื™ื”, ื”ืคื ื™ื” ื•ื–ืจื™ืžืช ื‘ืงืจื”. ื‘ืœื™ ื–ื”, ื”ื’ื™ืœื•ื™ ื”ื•ื ื‘ืจืžืช ืคื ื™ ื”ืฉื˜ื— ื‘ืžืงืจื” ื”ื˜ื•ื‘ ื•ืœื ืฉืœื ื‘ืฆื•ืจื” ืžืกื•ื›ื ืช ื‘ืžืงืจื” ื”ืจืข.

ืกืขื™ืฃ ื–ื” ืžืคืจืง ืœืžื” ืชื”ืœื™ืš ื’ื™ืœื•ื™ SQL ืžืœื ื—ื™ื™ื‘ ืœื”ืกื‘ื™ืจ ื•ื›ื™ืฆื“ ื›ืœ ืฉื›ื‘ื” ืชื•ืจืžืช ืœื”ืชื ื”ื’ื•ืช ื”ืžืขืจื›ืช.

ื–ื™ื”ื•ื™ SQL ื›ื™ื—ื™ื“ื” ืžื•ื‘ื ื™ืช, ืœื ืจืง ื›ืžื—ืจื•ื–ืช

ืฉื•ืจื” ื›ืžื• "SELECT * FROM users" ื”ื•ื ืจืง ื”ื”ืชื—ืœื”. ื‘ืžืขืจื›ื•ืช ืจื‘ื•ืช, ืžื” ืฉืžื•ืคื™ืข ื›ืฉืื™ืœืชื” ื”ื•ื ืœืžืขืฉื” ื ืžื‘ื ื” ืžื•ืจื›ื‘ ื‘ื ื•ื™ ืขืœ ืคื ื™ ืฉื•ืจื•ืช ืงื•ื“, ืงื‘ืฆื™ื ืื• ื–ื™ื›ืจื•ืŸ. ื–ื” ื›ื•ืœืœ:

  • ืฉืื™ืœืชื•ืช ืขื ืคืจืžื˜ืจื™ื (SELECT * FROM users WHERE id = ?)
  • ืžื—ืจื•ื–ื•ืช ืžืจื•ืฉืจื•ืช ืฉื•ืจื•ืช
  • ืชื‘ื ื™ื•ืช ืขื ืžืฆื™ื™ื ื™ ืžื™ืงื•ื ืื• ืขืจื›ื™ื ืฉื”ื•ื–ืจืžื•
  • ื”ืฆื”ืจื•ืช ืฉื”ื•ืฆื‘ื• ืžืจืืฉ ืื• ืฉืื™ืœืชื•ืช ืฉื ื•ืฆืจื•

ื›ื“ื™ ืœื–ื”ื•ืช ืฉืื™ืœืชื” ื‘ืื•ืคืŸ ืžืœื, ื”ื–ื™ื”ื•ื™ ื—ื™ื™ื‘ ืœื”ืชื™ื™ื—ืก ืืœื™ื” ื›ืืœ ื™ื—ื™ื“ื” ืœื•ื’ื™ืช, ืœื ืจืง ื”ืชืืžืช ื“ืคื•ืกื™ื. ื–ื” ืื•ืžืจ ืœื ืชื— ืืช ื”ื”ืงืฉืจ ืฉื‘ื• ื”ืฉืื™ืœืชื” ื ื•ืฆืจืช, ืžืื•ื—ืกื ืช ื•ืžื‘ื•ืฆืขืช.

ื–ื” ื—ืœ ื’ื ืขืœ ืฉืื™ืœืชื•ืช ืฉื ื‘ื ื• ื—ืœืงื™ืช ื‘ื–ืžืŸ ืจื™ืฆื”. ื‘ืกื™ืก SELECT ื”ืกืขื™ืฃ ืขืฉื•ื™ ืœื”ื™ื•ืช ืงื‘ื•ืข, ื‘ืขื•ื“ ืฉ- WHERE ืกืขื™ืฃ ื ื•ืกืฃ ืขืœ ืชื ืื™. ืฉื—ื–ื•ืจ ืฉืื™ืœืชื” ื–ื• ื“ื•ืจืฉ ืžืชืื ืชื—ื‘ื™ืจื™ ื•ืกืžื ื˜ื™, ืœื ืกืจื™ืงื” ืคืฉื•ื˜ื”.

ืžื™ืคื•ื™ ืžืงื•ืจื•ืช ื ืชื•ื ื™ื, ื˜ื‘ืœืื•ืช ื•ื™ืขื“ื™ ืฉืื™ืœืชื”

ื”ืฆื”ืจืช SQL ืฉื”ืชื’ืœืชื” ืฉื™ืžื•ืฉื™ืช ืจืง ื›ืžื• ื”ืžื˜ื ื ืชื•ื ื™ื ื”ืงืฉื•ืจื™ื ืืœื™ื”. ื”ืฆื•ื•ืชื™ื ืฆืจื™ื›ื™ื ืœื“ืขืช:

  • ืœืื™ืœื• ื˜ื‘ืœืื•ืช ืื• ืชืฆื•ื’ื•ืช ื”ื•ื ืžืคื ื”
  • ืื™ืœื• ื ืชื•ื ื™ื ื ื‘ื—ืจื™ื, ืžืขื•ื“ื›ื ื™ื ืื• ื ืžื—ืงื™ื
  • ื‘ื™ืŸ ืื ื”ื•ื ื ื™ื’ืฉ ืœืฉื“ื•ืช ืจื’ื™ืฉื™ื ื›ืžื• PII ืื• ื ืชื•ื ื™ื ืคื™ื ื ืกื™ื™ื
  • ื‘ืื™ืœื• ืื™ื ื“ืงืกื™ื ืื• ื”ืฆื˜ืจืคื•ืช ืžื“ื•ื‘ืจ

ืจืžื” ื–ื• ืฉืœ ืชื•ื‘ื ื” ื”ื™ื ืงืจื™ื˜ื™ืช ืขื‘ื•ืจ:

  • ื ื™ืชื•ื— ื”ืฉืคืขื” ื‘ืžื”ืœืš ืฉื™ื ื•ื™ื™ื ื‘ืกื›ื™ืžื”
  • ืžื™ืคื•ื™ ืฉื•ืฉืœืช ื ืชื•ื ื™ื ื•ืžืขืงื‘
  • ื‘ื™ืงื•ืจืช ื‘ืงืจืช ื’ื™ืฉื”

ืื ืœื ื ื™ืชืŸ ืœืงืฉืจ ืฉืื™ืœืชื” ืœื™ืขื“ื™ื ืฉืœื”, ืœื ื ื™ืชืŸ ืœื‘ื“ื•ืง ืื•ืชื” ื›ืจืื•ื™, ืœืฉืœื•ื˜ ื‘ื” ืื• ืœื‘ืฆืข ืื•ืคื˜ื™ืžื™ื–ืฆื™ื” ืฉืœื”.

ืงื™ืฉื•ืจ ืฉืื™ืœืชื•ืช ืœืคื•ื ืงืฆื™ื•ืช ืขืกืงื™ื•ืช ื•ื”ืชื ื”ื’ื•ืช ื™ื™ืฉื•ืžื™ื

ืฉืื™ืœืชื” ืœื ืงื™ื™ืžืช ื‘ื ืคืจื“ - ื”ื™ื ืงื™ื™ืžืช ื›ื“ื™ ืœืžืœื ืคื•ื ืงืฆื™ื” ืขืกืงื™ืช. ื‘ื™ืŸ ืื ืžื“ื•ื‘ืจ ื‘ื”ื—ื–ืจืช ืชื•ืฆืื•ืช ื—ื™ืคื•ืฉ, ื˜ืขื™ื ืช ืคืจื•ืคื™ืœ ืœืงื•ื— ืื• ืขื“ื›ื•ืŸ ืจืžื•ืช ืžืœืื™, SQL ืžื ื™ืข ื”ืชื ื”ื’ื•ืช ืฉื™ืฉ ืœื”ื‘ื™ืŸ ื‘ื”ืงืฉืจ.

ื’ื™ืœื•ื™ ื™ืขื™ืœ ื›ื•ืœืœ ืžื™ืคื•ื™:

  • ืื™ื–ื• ืคื•ื ืงืฆื™ื” ืื• API ืžืฉืชืžืฉืช ื‘ืฉืื™ืœืชื”
  • ืื™ื–ื• ืคืขื•ืœื” ืื• ืชื”ืœื™ืš ืฉืœ ืžืฉืชืžืฉ ืžืคืขื™ืœื™ื ืื•ืชื”
  • ืื™ืœื• ื ืชื•ื ื™ื ื–ื•ืจืžื™ื ื•ื™ื•ืฆืื™ื ืžื”ืœื•ื’ื™ืงื” ืฉืœ ื”ืฉืื™ืœืชื”

ืœื“ื•ื’ืžื”, ืฉืื™ืœืชื” ื”ืžืฉืžืฉืช ื‘ืชื”ืœื™ืš ื”ืฆื˜ืจืคื•ืช ืœืœืงื•ื— ืขืฉื•ื™ื” ืœื’ืขืช ื’ื ื‘ืฉื“ื•ืช ืจื’ื•ืœื˜ื•ืจื™ื™ื ื•ื’ื ื‘ื”ืงืฆืืช ื—ืฉื‘ื•ืŸ. ื”ื‘ื ื” ืฉื”ื—ื™ื‘ื•ืจ ื—ื™ื•ื ื™ ืœืชืื™ืžื•ืช ื•ื™ืฆื™ื‘ื•ืช ื”ืžืขืจื›ืช.

ืœืœื ื”ืงืฉืจ ืขืกืงื™, ื’ื™ืœื•ื™ ืฉืื™ืœืชื•ืช ื”ื•ืฉืœื ืจืง ืœืžื—ืฆื”. ืืชื” ืื•ืœื™ ื™ื•ื“ืข ืื™ืคื” ื”-SQL ื ืžืฆื - ืื‘ืœ ืœื ืœืžื” ื–ื” ื—ืฉื•ื‘.

ืžืขืงื‘ ืื—ืจ ื’ืจืกืื•ืช ืฉืื™ืœืชื•ืช, ื’ืจืกืื•ืช ื•ืฉื›ืคื•ืœ

ื‘ืžืขืจื›ื•ืช ื’ื“ื•ืœื•ืช, ืื•ืชื• ื”ื™ื’ื™ื•ืŸ ืฉืื™ืœืชื” ืงื™ื™ื ืœืขืชื™ื ืงืจื•ื‘ื•ืช ื‘ืžืกืคืจ ืžืงื•ืžื•ืช:

  • ืžืฉื•ื›ืคืœ ื‘ื™ืŸ ืฉื™ืจื•ืชื™ื
  • ืฉื•ื ื” ืžืขื˜ ืœืฉื™ืžื•ืฉ ืžืงื•ืžื™
  • ืžื™ื•ืฉื ื‘ื ื™ื‘ื™ื ืฉื•ื ื™ื ืขื‘ื•ืจ ืžืื’ืจื™ ืžื™ื“ืข ืฉื•ื ื™ื

Discovery ื—ื™ื™ื‘ ืœืงื‘ืฅ ื•ืœื”ืฉื•ื•ืช ื’ืจืกืื•ืช ืฉืœ ืฉืื™ืœืชื•ืช ื“ื•ืžื•ืช. ื–ื” ืขื•ื–ืจ ืœืฆื•ื•ืชื™ื:

  • ืื™ื—ื•ื“ ื”ื™ื’ื™ื•ืŸ ืžื™ื•ืชืจ
  • ืชืงืŸ ืืช ื”ื›ืœืœื™ื ื”ืขืกืงื™ื™ื
  • ื–ื”ื” ื—ื•ืกืจ ืขืงื‘ื™ื•ืช ืฉืขืœื•ืœ ืœื”ื•ื‘ื™ืœ ืœื‘ืื’ื™ื

ื‘ื“ืจืš ื–ื•, ื’ื™ืœื•ื™ ืฉืื™ืœืชื•ืช ื”ื•ืคืš ืœื›ืœื™ ืœืจืฆื™ื•ื ืœื™ื–ืฆื™ื” ื•ืžื•ื“ืจื ื™ื–ืฆื™ื” ืฉืœ ื›ืœ ืฉื›ื‘ืช ื”ื’ื™ืฉื” ืœื ืชื•ื ื™ื - ืœื ืจืง ืงื˜ืœื•ื’ ืฉืœ SQL ื’ื•ืœืžื™.

ื—ื™ืœื•ืฅ SQL ืžืงื•ื“ ืืžื™ืชื™: ืืชื’ืจื™ื ื•ื“ืคื•ืกื™ื ืฉื›ื“ืื™ ืœืฆืคื•ืช ื‘ื”ื

ื—ื™ืœื•ืฅ SQL ืžืงื•ื“ ื‘ืกื‘ื™ื‘ื•ืช ื‘ืขื•ืœื ื”ืืžื™ืชื™ ืื™ื ื• ืคืฉื•ื˜ ื›ืžื• ืกืจื™ืงื” ืื—ืจ ืžื™ืœื•ืช ืžืคืชื— ืื• ื ื™ืชื•ื— ืžื—ืจื•ื–ื•ืช. ื‘ืกื™ืกื™ ืงื•ื“ ืืจื’ื•ื ื™ื™ื ืžืœืื™ื ื‘ื”ืคืฉื˜ื•ืช, ืœื•ื’ื™ืงื” ื“ื™ื ืžื™ืช, ืžื•ื–ืจื•ื™ื•ืช ืกืคืฆื™ืคื™ื•ืช ืœืฉืคื” ื•ื”ืชื ื”ื’ื•ื™ื•ืช ืžื•ื ืขื•ืช ื”ืงืฉืจ ืฉื™ื›ื•ืœื•ืช ืœื˜ืฉื˜ืฉ ืœื—ืœื•ื˜ื™ืŸ ืืช ื”ื™ื’ื™ื•ืŸ ื”ืฉืื™ืœืชื•ืช. ื›ื“ื™ ืœื—ืฉื•ืฃ ื›ืœ ืžืฉืคื˜ SQL ืžืฉืžืขื•ืชื™, ื”ืฆื•ื•ืชื™ื ื—ื™ื™ื‘ื™ื ืœื”ื™ื•ืช ืžืฆื•ื™ื“ื™ื ืœื–ื”ื•ืช ื“ืคื•ืกื™ื ื ืคื•ืฆื™ื - ื•ืœืขืงื•ืฃ ืืช ื”ื“ืจื›ื™ื ืฉื‘ื”ืŸ ื ื™ืชืŸ ืœื”ืกืชื™ืจ ืื• ืœืฉื ื•ืช ืืช SQL.

ื—ืœืง ื–ื” ื‘ื•ื—ืŸ ืืช ื”ืืชื’ืจื™ื ื”ื˜ื›ื ื™ื™ื ื”ืขื™ืงืจื™ื™ื ื•ืืช ื”ื“ืคื•ืกื™ื ื”ื ื™ืชื ื™ื ืœื–ื™ื”ื•ื™ ื”ื›ืจื•ื›ื™ื ื‘ื—ื™ืœื•ืฅ SQL ืžืงื•ื“ ื”ื™ื™ืฆื•ืจ ื‘ืคื•ืขืœ.

ืฉืจืฉื•ืจ ืจื‘-ืงื• ื•ื‘ื ื™ื™ืช ืฉืื™ืœืชื•ืช ืžืคื•ืฆืœืช

ืื—ื“ ื”ืžื›ืฉื•ืœื™ื ื”ื ืคื•ืฆื™ื ื‘ื™ื•ืชืจ ื”ื•ื SQL ื”ืžืคื•ื–ืจ ืขืœ ืคื ื™ ืžืกืคืจ ืฉื•ืจื•ืช, ืžืฉืชื ื™ื ืื• ื‘ืœื•ืงื™ื ืžื•ืชื ื™ื. ืœืขืชื™ื ืงืจื•ื‘ื•ืช ืžืคืชื—ื™ื ื‘ื•ื ื™ื ืฉืื™ืœืชื•ืช ื‘ืื•ืคืŸ ื”ื“ืจื’ืชื™, ืžืฆืจืฃ ืื• ืžืงื“ื™ื ื—ืœืงื™ื ืžื”ื”ืฆื”ืจื” ื‘ื”ืชื‘ืกืก ืขืœ ืœื•ื’ื™ืงื” ืฉืœ ื™ื™ืฉื•ื.

ื“ื•ื’ืžื” ื‘-Java:

javaCopyEditString baseQuery = "SELECT * FROM orders";
if (includeCustomerData) {
    baseQuery += " JOIN customers ON orders.customer_id = customers.id";
}
baseQuery += " WHERE orders.status = ?";

ื‘ืžืงืจื” ื–ื”, ื”ืฉืื™ืœืชื” ื”ืžืœืื” ืœืขื•ืœื ืœื ืžืื•ื—ืกื ืช ื‘ืฉื•ืจื” ืื—ืช. ืกื•ืจืง ื‘ืกื™ืกื™ ืขืฉื•ื™ ืœื–ื”ื•ืช ืจืง ืฉื‘ืจื™ื. ืฉื—ื–ื•ืจ ืžืœื ื“ื•ืจืฉ ื”ื‘ื ื” ืฉืœ ื–ืจื™ืžืช ื”ื‘ืงืจื” ื•ื”ืœื•ื’ื™ืงื” ืฉืœ ื”ืจื›ื‘ืช ื”ืžื™ืชืจื™ื.

ืฉื™ืžื•ืฉ ื‘ื‘ื•ื ื™ ืฉืื™ืœืชื•ืช ื•ื”ืคืฉื˜ื•ืช ORM

ื‘ืฉืคื•ืช ืžื•ื“ืจื ื™ื•ืช, ืžืคืชื—ื™ื ืžืกืชืžื›ื™ื ืœืขืชื™ื ืงืจื•ื‘ื•ืช ืขืœ ืžืžืคื™ื ื‘ื™ื—ืกื™ ืื•ื‘ื™ื™ืงื˜ื™ื (ORM) ืื• ืกืคืจื™ื•ืช ื‘ื•ื ื™ ืฉืื™ืœืชื•ืช. ื›ืœื™ื ืืœื” ืžื™ื™ืฆืจื™ื SQL ื‘ื–ืžืŸ ืจื™ืฆื” ื‘ื”ืชื‘ืกืก ืขืœ ืžื•ื“ืœื™ื ืฉืœ ืื•ื‘ื™ื™ืงื˜ื™ื ืื• ืœื•ื’ื™ืงื” ืฉืœ ืฉืจืฉื•ืจ.

ื“ื•ื’ืžื” ื‘-Python (SQLAlchemy):

pythonCopyEditquery = session.query(Order).filter(Order.status == "pending")

ืฉื•ื SQL ืœื ื ืจืื” ื›ืืŸ, ืื‘ืœ ื”-ORM ื™ืคื™ืง ื SELECT ืฉืื™ืœืชื” ืžืื—ื•ืจื™ ื”ืงืœืขื™ื. ืœื›ื™ื“ืช ื–ื” ื“ื•ืจืฉ ื ื™ืชื•ื— ืคื ื™ืžื™ื•ืช ืฉืœ ืžืกื’ืจืช ืื• ื™ื™ืจื•ื˜ ืœื•ื’ื™ืงื” ืฉืœ ื™ืฆื™ืจืช ืฉืื™ืœืชื•ืช ื‘ืืžืฆืขื•ืช ืจื™ืฉื•ื, ืžืขืงื‘ ืื• ื‘ื“ื™ืงืช AST.

ืœืœื ืฉืœื‘ ื–ื”, ื›ืœ ื”ืฉืื™ืœืชื•ืช ื”ืžื‘ื•ืกืกื•ืช ืขืœ ORM ื ืฉืืจื•ืช ื‘ืœืชื™ ื ืจืื•ืช ืœื›ืœื™ ื’ื™ืœื•ื™.

ืคืจืžื˜ืจื™ื ืžื•ื˜ื‘ืขื™ื ื•ืฉืื™ืœืชื•ืช ืชื‘ื ื™ื•ืช

ืืชื’ืจ ื ืคื•ืฅ ื ื•ืกืฃ ื”ื•ื ืฉืื™ืœืชื•ืช ืขื ืคืจืžื˜ืจื™ื ืื• ืชื‘ื ื™ื•ืช ืฉืื™ืœืชื•ืช ื”ืžืื•ื—ืกื ื•ืช ืžื—ื•ืฅ ืœื‘ืกื™ืก ื”ืงื•ื“. ืžืคืชื—ื™ื ืžืฉืชืžืฉื™ื ืœืขืชื™ื ืงืจื•ื‘ื•ืช ื‘ืžืฆื™ื™ื ื™ ืžื™ืงื•ื ื›ื“ื™ ืœื”ื—ื“ื™ืจ ื‘ื‘ื˜ื—ื” ืžืฉืชื ื™ื ืื• ืœืขืฉื•ืช ืฉื™ืžื•ืฉ ื—ื•ื–ืจ ื‘ืœื•ื’ื™ืงื” ืฉืœ ืฉืื™ืœืชื•ืช.

ื“ื•ื’ืžื:

pythonCopyEditquery = "SELECT * FROM inventory WHERE category = :category"

ื‘ืžืงืจื™ื ืžืกื•ื™ืžื™ื, ื”-SQL ืขืฉื•ื™ ืœื—ื™ื•ืช ื‘:

  • ื—ื™ืฆื•ื ื™ .sql or .tpl ืงื‘ืฆื™ื
  • ืชืฆื•ืจื” ืžื‘ื•ืกืกืช JSON ืื• XML
  • ืžืฉืชื ื™ ืกื‘ื™ื‘ื” ืื• ืกืคืจื™ื•ืช ืฉืœ ืฆื“ ืฉืœื™ืฉื™

ื›ืœื™ ื—ื™ืœื•ืฅ ื—ื™ื™ื‘ื™ื ืœื”ื™ื•ืช ืžืกื•ื’ืœื™ื ืœื˜ืขื•ืŸ ื•ืœื ืชื— ืžืงื•ืจื•ืช ืืœื” ืœืฆื“ ืงื•ื“, ื•ืœืื—ืจ ืžื›ืŸ ืœื‘ื ื•ืช ืžื—ื“ืฉ ืฉืื™ืœืชื•ืช ืขื ืžืกืคื™ืง ืžื˜ื ื ืชื•ื ื™ื ื›ื“ื™ ืœืฆื™ื™ืŸ ืžื”ื™ื›ืŸ ืžืงื•ืจืŸ.

ืชื‘ื ื™ื•ืช ืžื“ื•ืจ ืงื•ื“ื ื•ืžืขื‘ื“ื™ ืงื“ื

ื‘ืกื™ืกื™ ืงื•ื“ ื™ืฉื ื™ื ื™ื•ืชืจ ืžืฆื™ื’ื™ื ืืชื’ืจื™ื ื™ื™ื—ื•ื“ื™ื™ื. COBOL, ืœืžืฉืœ, ืžืฉืชืžืฉ EXEC SQL ื‘ืœื•ืงื™ื ื”ื“ื•ืจืฉื™ื ืขื™ื‘ื•ื“ ืžืงื“ื™ื ื›ื“ื™ ืœื”ื“ืจ. ื‘ืœื•ืงื™ื ืืœื• ืขืฉื•ื™ื™ื ืœื”ื™ื•ืช ืžืคื•ื–ืจื™ื ื‘ืชื•ื›ื ื™ื•ืช ืžืจื•ื‘ื•ืช ืืœืคื™ ืฉื•ืจื•ืช, ืžืขื•ืจื‘ื‘ื™ื ื‘ื”ื™ื’ื™ื•ืŸ ืขืกืงื™ ื•ื”ืขืจื•ืช.

ื“ื•ื’ืžื:

cobolCopyEditEXEC SQL
    SELECT NAME, ADDRESS
    INTO :WS-NAME, :WS-ADDRESS
    FROM CUSTOMER
    WHERE ID = :WS-ID
END-EXEC.

ื›ืืŸ, ื™ืฉ ืœื—ืœืฅ ื”ืฆื”ืจื•ืช SQL ื™ื—ื“ ืขื ืžื™ืคื•ื™ื™ ืžืฉืชื ื™ื ืžืืจื— ื•ืœืงืฉื•ืจ ืœืžื‘ื ื™ ื ืชื•ื ื™ื. ืื•ืชื• ื”ื“ื‘ืจ ื—ืœ ื‘ืกื‘ื™ื‘ื•ืช PL/SQL, T-SQL ืื• RPG, ืฉื‘ื”ืŸ ืœื•ื’ื™ืงื” ืคืจื•ืฆื“ื•ืจืœื™ืช ืขืฉื•ื™ื” ืœื™ืฆื•ืจ SQL ื‘ืื•ืคืŸ ืžื•ืชื ื” ื‘ืืžืฆืขื•ืช ื‘ื ื™ื™ืช ืœื•ืœืื•ืช ืื• ืคืจื•ืฆื“ื•ืจื•ืช ืžื•ื“ื•ืœืจื™ื•ืช.

ืื ื˜ื™-ื“ืคื•ืกื™ื ืžื•ืขื“ื™ื ืœืฉื’ื™ืื•ืช ืฉืฉื•ื‘ืจื™ื ืืช ื”ื’ื™ืœื•ื™

ืฉื™ื˜ื•ืช ืงื™ื“ื•ื“ ืžืกื•ื™ืžื•ืช ืคื•ืขืœื•ืช ื‘ืื•ืคืŸ ืคืขื™ืœ ื ื’ื“ ื’ื™ืœื•ื™, ื›ื’ื•ืŸ:

  • ื‘ื ื™ื™ืช ืฉืื™ืœืชื•ืช ืžืงืœื˜ ืžืฉืชืžืฉ ืœืœื ืื™ืžื•ืช
  • ื‘ื™ืฆื•ืข ืฉืื™ืœืชื•ืช ื“ืจืš ืžื—ื‘ืจื™ ืžืกื“ ื ืชื•ื ื™ื ื’ื•ืœืžื™ื™ื ืœืœื ืจื™ืฉื•ื ืฉืื™ืœืชื•ืช
  • ืจื™ืฉื•ื ื”ืฆื”ืจื•ืช SQL ืžืขื•ืจืคืœื•ืช ืื• ื—ืœืงื™ื•ืช
  • ื”ืขืชืงื” ื•ื”ื“ื‘ืงื” ืฉืœ ืฉืื™ืœืชื•ืช ืขืœ ืคื ื™ ืžืขืจื›ื•ืช ืขื ืฉื™ื ื•ื™ื™ื ืงืœื™ื

ืชื‘ื ื™ื•ืช ืื ื˜ื™-ื“ืคื•ืกื™ื ืืœื• ืžืงืฉื•ืช ืขืœ ืžืขืงื‘ ืื—ืจ ื”ืชื ื”ื’ื•ืช, ื ื™ืคื•ื™ ืชืงืœื•ืช ืื• ืื›ื™ืคืช ืขืงื‘ื™ื•ืช. ืžืืžืฅ ื’ื™ืœื•ื™ ื—ื–ืง ื—ื™ื™ื‘ ืœืกืžืŸ ืฉื™ื˜ื•ืช ืขื‘ื•ื“ื” ืืœื• ื•ืœื”ืกืœื™ื ืื•ืชืŸ ืœืฆื•ืจืš ืชื™ืงื•ืŸ.

ื‘ืงื™ืฆื•ืจ, SQL ื‘ืขื•ืœื ื”ืืžื™ืชื™ ื”ื•ื ืจืง ืœืขืชื™ื ื ื“ื™ืจื•ืช ืžืกื•ื“ืจ. ื’ื™ืœื•ื™ ื–ื” ืคื™ืจื•ืฉื• ืœื”ืกื‘ื™ืจ ื›ื™ืฆื“ ืžืคืชื—ื™ื ื‘ืืžืช ื›ื•ืชื‘ื™ื, ืขื•ืฉื™ื ืฉื™ืžื•ืฉ ื—ื•ื–ืจ ื•ืžื˜ืฉื˜ืฉ ืฉืื™ืœืชื•ืช ืœืื•ืจืš ืฉื ื™ื ืฉืœ ื”ืชืคืชื—ื•ืช ืžืขืจื›ืช.

ืžืขื‘ืจ ืœืžื•ื‘ืŸ ืžืืœื™ื•: ื—ืฉื™ืคืช SQL ื‘ืืžืฆืขื•ืช ื’ืจืคื™ ืฉื™ื—ื•ืช ื•ื–ืจื™ืžืช ื‘ืงืจื”

ื—ืœืง ืžื”ืฆื”ืจื•ืช SQL ื”ืงืจื™ื˜ื™ื•ืช ื‘ื™ื•ืชืจ ื‘ืžืขืจื›ืช ืฉืœืš ืื™ื ืŸ ื’ืœื•ื™ื•ืช ื‘ืจืžืช ื”ืฉื˜ื—. ื”ื ืžื•ืคืขืœื™ื ื‘ืขืงื™ืคื™ืŸ - ื‘ืืžืฆืขื•ืช ืคื•ื ืงืฆื™ื•ืช ืฉื™ืจื•ืช, ื”ืชืงืฉืจื•ื™ื•ืช ื—ื•ื–ืจื•ืช, ืฆื™ื ื•ืจื•ืช ืชื•ื•ืš ืื• ืชื ืื™ื ื“ื™ื ืžื™ื™ื ื”ืคืจื•ืกื™ื ืขืœ ืคื ื™ ืฉื›ื‘ื•ืช ืžืจื•ื‘ื•ืช. ื›ื“ื™ ืœื—ืฉื•ืฃ ื‘ืื•ืคืŸ ืžืœื ืืช ื”ืžืขืžื“ ื”ื–ื” ืฉืœ SQL ืžื•ืกืชืจ, ื”ื’ื™ืœื•ื™ ื—ื™ื™ื‘ ืœื”ืชืจื—ื‘ ืžืขื‘ืจ ืœื ื™ืชื•ื— ื˜ืงืกื˜ื•ืืœื™ ื•ืœื”ื™ื›ื ืก ืœืชื—ื•ื ืฉืœ ื’ืจืคื™ ืฉื™ื—ื•ืช ื• ืžืขืงื‘ ืื—ืจ ื–ืจื™ืžื” ื‘ืงืจื”.

ื—ืœืง ื–ื” ื‘ื•ื—ืŸ ื›ื™ืฆื“ ืžืขืงื‘ ืื—ืจ ื ืชื™ื‘ื™ ื‘ื™ืฆื•ืข ืฉืœ ืชื•ื›ื ื™ื•ืช ื™ื›ื•ืœ ืœื—ืฉื•ืฃ SQL ืžื•ื˜ื‘ืข ืขืžื•ืง ื•ืžื“ื•ืข ื”ื•ื ื—ื™ื•ื ื™ ืœื’ื™ืœื•ื™ ืžืœื ื‘ื“ืจื’ืช ื™ื™ืฆื•ืจ.

ืงืจื™ืื•ืช ืคื•ื ืงืฆื™ื•ืช ื”ื‘ืื•ืช ืœื‘ื™ืฆื•ืข ืฉืื™ืœืชื•ืช

ื™ื™ืฉื•ืžื™ื ืžื•ื“ืจื ื™ื™ื ืžืกืชืžื›ื™ื ื‘ืžื™ื“ื” ืจื‘ื” ืขืœ ืžื•ื“ื•ืœืจื™ื•ืช. ืคื•ื ืงืฆื™ื” ืขืกืงื™ืช ื‘ื•ื“ื“ืช ืขืฉื•ื™ื” ืœืขื‘ื•ืจ ืขืฉืจื•ืช ืงืจื™ืื•ืช ืœืžืชื•ื“ื” ืœืคื ื™ ืฉืชื’ื™ืข ืœื ืงื•ื“ื” ืฉื‘ื” SQL ืžื‘ื•ืฆืข. ื’ื™ืฉื” ืฉื›ื‘ืชื™ืช ื–ื• ืžืงื“ืžืช ืฉื™ืžื•ืฉ ื—ื•ื–ืจ ื•ื”ืคืฉื˜ื” ืืš ืžืกืชื™ืจื” ืืช ื”ืฉืื™ืœืชื” ืžืื—ื•ืจื™ ืจืžื•ืช ืžืจื•ื‘ื•ืช ืฉืœ ืขืงื™ืคื”.

ืœื“ื•ื’ืžื”:

pythonCopyEditdef handle_request():
    user_id = get_current_user()
    result = fetch_user_data(user_id)

def fetch_user_data(uid):
    return run_query("SELECT * FROM users WHERE id = ?", uid)

ื‘ืชืจื—ื™ืฉ ื–ื”, ื”-SQL ืžื‘ื•ืฆืข ื‘ืขื•ืžืง ืฉืœื•ืฉ ืจืžื•ืช ืžื”ืคื•ื ืงืฆื™ื” ื”ืจืืฉื•ื ื™ืช. ืกืจื™ืงื” ืคืฉื•ื˜ื” ืชื–ื”ื” ืจืง ืืช ื”-SQL ื‘ืคื ื™ื run_query, ื—ืกืจ ื”ืงืฉืจ ืฉืœื• ืœืชื”ืœื™ืš ื”ืขืกืงื™ ืฉื”ืคืขื™ืœ ืื•ืชื•.

ื‘ืืžืฆืขื•ืช ื’ืจืฃ ืฉื™ื—ื•ืช, ื ื•ื›ืœ ืœืžืคื•ืช:

  • ืื™ืœื• ืคื•ื ืงืฆื™ื•ืช ืžืขื•ืจืจื•ืช ืœื•ื’ื™ืงื” ืฉืœ ืžืกื“ ื”ื ืชื•ื ื™ื
  • ื›ื™ืฆื“ ืคื•ื ืงืฆื™ื•ืช ื”ืงืฉื•ืจื•ืช ืœืฉืื™ืœืชื” ืžื—ื•ื‘ืจื•ืช ืœื–ืจื™ืžื•ืช ืขื‘ื•ื“ื” ืขืกืงื™ื•ืช
  • ื›ืืฉืจ ืฉื™ื ื•ื™ื™ื ื‘ืงืœื˜ ืื• ื‘ืœื•ื’ื™ืงื” ืขืฉื•ื™ื™ื ืœื”ืฉืคื™ืข ืขืœ ื”ืชื ื”ื’ื•ืช ื”ืฉืื™ืœืชื”

ื–ื” ืžืืคืฉืจ ืœืฆื•ื•ืชื™ื ืœืขืงื•ื‘ ืื—ืจ SQL ืžื”ืžืงื•ืจ ืœื‘ื™ืฆื•ืข, ื•ืžื‘ื˜ื™ื— ืฉืฉื•ื ื—ืœืง ืžื”ืžืขืจื›ืช ืื™ื ื• ืžื ื•ืชืง ืžื”ื ื™ืชื•ื—.

ื ื™ืชื•ื— ืขื ืคื™ื ืžื•ืชื ื™ื ื•ื–ืจื™ืžืช ื–ืžืŸ ืจื™ืฆื”

ื‘ืžืขืจื›ื•ืช ืืžื™ืชื™ื•ืช, ื‘ื™ืฆื•ืข SQL ื”ื•ื ืœืจื•ื‘ ืžื•ืชื ื”. ื ื™ืชืŸ ืœื‘ื ื•ืช ืื• ืœื”ืคืขื™ืœ ืฉืื™ืœืชื” ืจืง ื‘ืชื ืื™ื ืกืคืฆื™ืคื™ื™ื, ืชืคืงื™ื“ื™ ืžืฉืชืžืฉ, ื“ื’ืœื™ ืชื›ื•ื ื” ืื• ืžื˜ืคืœื™ ื—ืจื™ื’ื™ื.

ื“ื•ื’ืžื” ื‘-Java:

javaCopyEditif (customer.isPremium()) {
    sql = "SELECT * FROM premium_orders WHERE customer_id = ?";
} else {
    sql = "SELECT * FROM orders WHERE customer_id = ?";
}

ื›ืืŸ, ืื™ื–ื• ืฉืื™ืœืชื” ืžืฉืžืฉืช ืชืœื•ื™ื” ื‘ืœื•ื’ื™ืงืช ื–ืžืŸ ื”ืจื™ืฆื”. ื ื™ืชื•ื— ืกื˜ื˜ื™ ื—ื™ื™ื‘ ืœื”ืขืจื™ืš ืืช ื›ืœ ื”ืขื ืคื™ื ื”ืืคืฉืจื™ื™ื ื›ื“ื™ ืœื–ื”ื•ืช ื›ืœ ื ืชื™ื‘ ืฉืื™ืœืชื”. ื ื™ืชื•ื— ื–ืจื™ืžืช ื‘ืงืจื” ืžื’ืœื”:

  • ืื™ืœื• ื ืชื™ื‘ื™ื ืžื•ื‘ื™ืœื™ื ืœื‘ื™ืฆื•ืข ืฉืื™ืœืชื”
  • ืื™ืœื• ืžืฉืชื ื™ื ืžืฉืคื™ืขื™ื ืขืœ ืžื‘ื ื” ื”-SQL
  • ื”ืื ืขื ืคื™ื ืžืกื•ื™ืžื™ื ืžื›ื™ืœื™ื ื“ืคื•ืกื™ ืฉืื™ืœืชื•ืช ืฉื”ื•ืฆืื• ืžืฉื™ืžื•ืฉ ืื• ืžืกื•ื›ื ื™ื

ื–ื” ื—ืฉื•ื‘ ื‘ืžื™ื•ื—ื“ ื‘ืžืขืจื›ื•ืช ื”ืžืฉืชืžืฉื•ืช ื‘-SQL ื“ื™ื ืžื™ ืื• ืžืกืชืžื›ื•ืช ืขืœ ืœื•ื’ื™ืงื” ืžื‘ื•ืกืกืช ืชืคืงื™ื“ื™ื ื›ื“ื™ ืœื‘ื ื•ืช ืฉืื™ืœืชื•ืช ืฉื•ื ื•ืช ืขื‘ื•ืจ ืžืฉืชืžืฉื™ื ืฉื•ื ื™ื.

ืžืขืงื‘ ืื—ืจ ืฉื™ืจื•ืชื™ื, ืžืžืฉืงื™ API ื•ืขื‘ื•ื“ื•ืช ืืกื™ื ื›ืจื•ื ื™ื•ืช

ื’ืจืคื™ ืฉื™ื—ื•ืช ืœื ื ืขืฆืจื™ื ื‘ื’ื‘ื•ืœื•ืช ืฉืœ ืžื•ื“ื•ืœ ื‘ื•ื“ื“. ื‘ืžืขืจื›ื•ืช ืืจื’ื•ื ื™ื•ืช, SQL ืขืฉื•ื™ ืœื”ื™ื•ืช ืžื•ืคืขืœ ื‘ืืžืฆืขื•ืช:

  • ื‘ืงืฉื•ืช API ืžื ื•ืชื‘ื•ืช ื‘ื™ืŸ ืฉื™ืจื•ืชื™ื
  • ืชื•ืจื™ ื”ื•ื“ืขื•ืช ืื• ืขื‘ื•ื“ื•ืช ืจืงืข
  • ืžื ื•ืขื™ ื–ืจื™ืžืช ืขื‘ื•ื“ื” ืื• ื˜ืจื™ื’ืจื™ื ืฉืœ ื›ืœืœื™ื ืขืกืงื™ื™ื

ืคืขื•ืœื” ื‘ื•ื“ื“ืช ืขืฉื•ื™ื” ืœื™ื–ื•ื ืชื”ืœื™ืš ืืกื™ื ื›ืจื•ื ื™ ืฉืžื•ื‘ื™ืœ ืœื‘ื™ืฆื•ืข ืฉืื™ืœืชืช SQL ื“ืงื•ืช ืื• ืฉืขื•ืช ืžืื•ื—ืจ ื™ื•ืชืจ - ืœืจื•ื‘ ื‘ื‘ืกื™ืก ืงื•ื“ ืื—ืจ ืœื’ืžืจื™.

ื’ื™ืœื•ื™ ืžืชืงื“ื ื—ื™ื™ื‘:

  • ืงืฉืจ ืืช SQL ืœื˜ืจื™ื’ืจื™ื ื‘ืžืขืœื” ื”ื–ืจื ื•ืœืชื”ืœื™ื›ื™ื ื‘ืžื•ืจื“ ื”ื–ืจื
  • ืขืงื•ื‘ ืื—ืจ ื ืชื™ื‘ื™ ื‘ื™ืฆื•ืข ืืกื™ื ื›ืจื•ื ื™ื™ื
  • ื—ื‘ืจ ืฉืื™ืœืชื•ืช ืœืื™ืจื•ืขื™ ืžืฉืชืžืฉ, ืžืฉืจื•ืช ื•ืกืงืจื™ืคื˜ื™ื ืœืื•ื˜ื•ืžืฆื™ื”

ืขืœ ื™ื“ื™ ื”ืชื™ื™ื—ืกื•ืช ืœ-SQL ื›ื—ืœืง ืž-a ื’ืจืฃ ื‘ื™ืฆื•ืข ื›ืœืœ ื”ืžืขืจื›ืช, ื”ื’ื™ืœื•ื™ ื”ื•ืคืš ืœืžืฉืžืขื•ืชื™ ืžื‘ื—ื™ื ื” ืžื‘ืฆืขื™ืช. ื”ื•ื ืžืืคืฉืจ ืœืฆื•ื•ืชื™ื ืœื”ื‘ื™ืŸ ืœื ืจืง ื”ื™ื›ืŸ SQL ื—ื™, ืืœื ื›ื™ืฆื“ ื•ืžืชื™ ื”ื•ื ืžื•ืคืขืœ - ื•ืื™ื–ื” ื”ื™ื’ื™ื•ืŸ ืขืกืงื™ ื”ื•ื ืžืฉืจืช.

ื’ืจืฃ ืฉื™ื—ื•ืช ื•ืžืขืงื‘ ืื—ืจ ื–ืจื™ืžืช ื‘ืงืจื” ื”ื•ืคื›ื™ื ืืช ื’ื™ืœื•ื™ SQL ืžืžืœืื™ ืกื˜ื˜ื™ ืœ- ืžืคืช ืžืขืจื›ืช ืื™ื ื˜ืจืืงื˜ื™ื‘ื™ืช. ื‘ืžืงื•ื ืžื—ืจื•ื–ื•ืช ืžื‘ื•ื“ื“ื•ืช, ื”ืฆื•ื•ืชื™ื ืจื•ืื™ื:

  • ืื™ืœื• ืฉืื™ืœืชื•ืช ื›ื•ื— ืื™ืœื• ืชื›ื•ื ื•ืช
  • ื›ื™ืฆื“ ืœื•ื’ื™ืงื” ืฉืœ SQL ืžืชืคืฉื˜ืช ื‘ื™ืŸ ืฉื™ืจื•ืชื™ื
  • ื›ืืฉืจ ืงื™ื™ืžื•ืช ืชืœื•ืช ื”ืžืฉืคื™ืขื•ืช ืขืœ ื‘ื˜ื™ื—ื•ืช, ื‘ื™ืฆื•ืขื™ื ืื• ืชืื™ืžื•ืช

ื”ื ืจืื•ืช ื”ื–ื• ืžืืคืฉืจืช ืจื™ืคืืงื˜ื•ืจื™ื ื’ ื‘ื˜ื•ื— ื™ื•ืชืจ, ื‘ื“ื™ืงื•ืช ืžื“ื•ื™ืงื•ืช ื™ื•ืชืจ ื•ืชื›ื ื•ืŸ ืืจื›ื™ื˜ืงื˜ื•ืจื” ื˜ื•ื‘ ื™ื•ืชืจ. ื–ื” ื’ื ื ื•ืชืŸ ื›ื•ื— ืœืฆื•ื•ืชื™ื ืœืื›ื•ืฃ ืฉื™ื˜ื•ืช ืขื‘ื•ื“ื” ืžื•ืžืœืฆื•ืช - ืžื›ื™ื•ื•ืŸ ืฉื”ื ื™ื›ื•ืœื™ื ืกื•ืฃ ืกื•ืฃ ืœืจืื•ืช ื›ื™ืฆื“ ื”ื™ื’ื™ื•ืŸ ืฉืื™ืœืชื•ืช ืžืชื—ื‘ืจืช ืœื”ืชื ื”ื’ื•ืช ืขืกืงื™ืช ืืžื™ืชื™ืช.

ื‘ืงื™ืฆื•ืจ, ื’ืจืคื™ ืฉื™ื—ื•ืช ืกื•ื’ืจื™ื ืืช ื”ืคืขืจ ื‘ื™ืŸ ืžื‘ื ื” ื”ืงื•ื“ ืœื”ืชื ื”ื’ื•ืช ื–ืžืŸ ื”ืจื™ืฆื”. ืขื‘ื•ืจ ื’ื™ืœื•ื™ SQL, ื–ื” ื”ืžืคืชื— ืœื”ืคื™ื›ืช ื”ื ืจืื•ืช ืœืคืขื•ืœื”.

ืžื ื™ื—ื•ืฉื™ื ืœืืžืช ืงืจืงืข: ื‘ื ื™ื™ืช ืชืจื‘ื•ืช ืฉืœ ืžื•ื“ืขื•ืช ืœ-SQL

ื—ื•ืกืจ ื”ื™ื›ื•ืœืช ืœืจืื•ืช ื•ืœื”ื‘ื™ืŸ ื‘ืื•ืคืŸ ืžืœื ืืช ื”ืฉื™ืžื•ืฉ ื‘-SQL ืขืœ ืคื ื™ ื‘ืกื™ืก ื”ืงื•ื“ ื”ื•ื ื™ื•ืชืจ ืžืคืขืจ ื›ืœื™ื - ื”ื•ื ืคืขืจ ืชืจื‘ื•ืชื™. ื›ืืฉืจ ืฆื•ื•ืชื™ื ืคื•ืขืœื™ื ืœืœื ื ืจืื•ืช ืขืงื‘ื™ืช ืœื’ื™ืฉื” ืœื ืชื•ื ื™ื, ื”ืชื•ืฆืื” ื”ื™ื ื‘ืขืœื•ืช ืžืคื•ืฆืœืช, ื”ื™ื’ื™ื•ืŸ ืœื ืขืงื‘ื™ ื•ืกื™ื›ื•ืŸ ืชืคืขื•ืœื™ ืžื•ื’ื‘ืจ. ืื‘ืœ ื›ืืฉืจ ืžื•ื“ืขื•ืช SQL ื”ื•ืคื›ืช ืœื—ืœืง ืžื”ืœืš ื”ืจื•ื— ื”ื”ื ื“ืกื™, ืืจื’ื•ื ื™ื ืžืฉื™ื’ื™ื ื™ืชืจื•ืŸ ืืกื˜ืจื˜ื’ื™: ื’ื™ืฉื” ื ืงื™ื™ื” ืœื ืชื•ื ื™ื, ื ื™ื”ื•ืœ ืฉื™ื ื•ื™ื™ื ื‘ื˜ื•ื— ื•ืฉื™ืคื•ืจ ื‘ื™ืฆื•ืขื™ื ืžื“ื™ื“.

ื—ืœืง ื–ื” ื‘ื•ื—ืŸ ื›ื™ืฆื“ ืฆื•ื•ืชื™ื ื™ื›ื•ืœื™ื ืœื”ื˜ืžื™ืข ื ืจืื•ืช SQL ื‘ืชืจื‘ื•ืช ื”ืคื™ืชื•ื— ืฉืœื”ื ื•ืžื“ื•ืข ื–ื” ื—ืฉื•ื‘ ืœื‘ืจื™ืื•ืช ื”ืžืขืจื›ืช ืœื˜ื•ื•ื— ืืจื•ืš.

ื”ืคื•ืš ืืช SQL Visibility ืœืžื˜ืจื” ื”ื ื“ืกื™ืช ืžืžื“ืจื’ื” ืจืืฉื•ื ื”

ื‘ืฆื•ื•ืชื™ ืคื™ืชื•ื— ืจื‘ื™ื ืžืชื™ื™ื—ืกื™ื ืœ-SQL ื›ืืœ ื“ืื’ื” ืžืฉื ื™ืช - ืžืฉื”ื• ืฉืงื‘ื•ืจ ื‘-backend ืื• ืžื•ืจื™ื“ ืœืžื ื”ืœื™ ืžืกื“ ื ืชื•ื ื™ื. ืื‘ืœ ื‘ืžืฆื™ืื•ืช, SQL ืžื’ื“ื™ืจ ื”ืชื ื”ื’ื•ืช ืขืกืงื™ืช ืงืจื™ื˜ื™ืช. ื–ื” ื”ืื•ืคืŸ ืฉื‘ื• ื™ื™ืฉื•ืžื™ื ืงื•ืจืื™ื ื ืชื•ื ื™ ืœืงื•ื—ื•ืช, ืžื—ืฉื‘ื™ื ื—ืฉื‘ื•ื ื™ื•ืช, ืžืืžืชื™ื ืžืฉืชืžืฉื™ื ืื• ืื•ื›ืคื™ื ืžื“ื™ื ื™ื•ืช.

ื›ื“ื™ ืœื ื”ืœ ืืช ื–ื” ื‘ืฆื•ืจื” ืื—ืจืื™ืช, ื”ืฆื•ื•ืชื™ื ื—ื™ื™ื‘ื™ื ืœื”ืชื™ื™ื—ืก ืœื’ื™ืœื•ื™ ื•ื‘ื”ื™ืจื•ืช ืฉืœ SQL ื›ืืœ ืžื˜ืจื” ืžืžื“ืจื’ื” ืจืืฉื•ื ื”, ืœื ืžื—ืฉื‘ื” ืฉืœืื—ืจ ืžื›ืŸ. ื–ึนืืช ืื•ึนืžึถืจึถืช:

  • ื”ืคื™ื›ืช ื‘ื™ืงื•ืจืช SQL ืœื—ืœืง ื ื“ืจืฉ ืžืชื•ื›ื ื™ื•ืช ืขื™ื‘ื•ื“ ืžื—ื“ืฉ ืื• ื”ื’ื™ืจื”
  • ืžืขืงื‘ ืื—ืจ ืžื™ืงื•ืžื™ ืฉืื™ืœืชื•ืช ื•ืฉื™ืžื•ืฉ ื‘ืชื™ืขื•ื“ ืขื™ืฆื•ื‘ ืžืขืจื›ืช
  • ื›ื•ืœืœ ื ืจืื•ืช SQL ื‘ืกืงื™ืจื•ืช ืงื•ื“ ื•ื”ื—ืœื˜ื•ืช ืืจื›ื™ื˜ืงื˜ื•ื ื™ื•ืช

ืขืœ ื™ื“ื™ ื”ืขืœืืช ื”ื ืจืื•ืช ืฉืœ SQL, ืฆื•ื•ืชื™ื ืžืคื—ื™ืชื™ื ืืช ื”ืกื™ื›ื•ื™ ืœืฉื›ืคื•ืœ, ืกื˜ื™ื™ื” ืื• ืฉื’ื™ืื•ืช ืœื–ื—ื•ืœ ืœืชื•ืš ื”ื”ื™ื’ื™ื•ืŸ ื”ืขืกืงื™ ื”ืœื™ื‘ื”.

ืฉืœื‘ ืืช Discovery ื‘ื”ื˜ืžืขื”, ื‘ืงืจืช ืฉื™ื ื•ื™ื™ื ื•ืืจื›ื™ื˜ืงื˜ื•ืจื”

ืžืคืชื—ื™ื ื—ื“ืฉื™ื ืœื ืฆืจื™ื›ื™ื ืœื ื—ืฉ ืžืื™ืคื” ืžื’ื™ืขื™ื ื”ื ืชื•ื ื™ื - ืื• ื’ืจื•ืข ืžื›ืš, ืœื™ื™ืฉื ืžื—ื“ืฉ ืฉืื™ืœืชื•ืช ืฉื›ื‘ืจ ืงื™ื™ืžื•ืช. ื›ืืฉืจ ื’ื™ืœื•ื™ SQL ืžืฉื•ืœื‘ ื‘-onboarding, ื”ื•ื ืžืื™ืฅ ืืช ื”ืœืžื™ื“ื” ื•ืžืคื—ื™ืช ื›ืคื™ืœื•ืช ื‘ืฉื•ื’ื’. ืžืคืชื—ื™ื ืžืงื‘ืœื™ื ื”ื‘ื ื” ื‘ืจื•ืจื” ื›ื™ืฆื“ ืคื•ืขืœืช ื”ื”ื™ื’ื™ื•ืŸ ื”ืงื™ื™ื ื•ื›ื™ืฆื“ ืœืขืฉื•ืช ื‘ื• ืฉื™ืžื•ืฉ ื—ื•ื–ืจ ื ื›ื•ืŸ.

ื‘ื‘ืงืจืช ืฉื™ื ื•ื™ื™ื, ื’ื™ืœื•ื™ ืขื•ื–ืจ ืœื‘ื—ื•ืŸ ืืช ื”ื”ืฉืคืขื” ื”ืžืœืื” ืฉืœ ืฉื™ื ื•ื™ ืžื•ืฆืข. ืฆื•ื•ืชื™ื ื™ื›ื•ืœื™ื ืœืจืื•ืช ื‘ืื•ืคืŸ ืžื™ื™ื“ื™ ืื™ืœื• ืฉื™ืจื•ืชื™ื, ื–ืจื™ืžื•ืช ืขื‘ื•ื“ื” ืื• ื“ื•ื—ื•ืช ื™ื•ืฉืคืขื• ืžืฉื™ื ื•ื™ ืฉืื™ืœืชื”. ืชื•ื‘ื ื” ื–ื• ืžืฉืคืจืช ืืช ื›ื™ืกื•ื™ ื”ื‘ื“ื™ืงื•ืช ื•ืžืคื—ื™ืชื” ืืช ืกื™ื›ื•ืŸ ื”ืคืจื™ืกื”.

ื•ืžื ืงื•ื“ืช ืžื‘ื˜ ืื“ืจื™ื›ืœื™ืช, ื ืจืื•ืช SQL ืชื•ืžื›ืช ื‘ื”ื—ืœื˜ื•ืช ืขื™ืฆื•ื‘ ื˜ื•ื‘ื•ืช ื™ื•ืชืจ. ืื“ืจื™ื›ืœื™ื ื™ื›ื•ืœื™ื ืœืžืคื•ืช ื“ืคื•ืกื™ ืฉืื™ืœืชื•ืช ืœื“ื•ืžื™ื™ื ื™ื ืฉืœ ื ืชื•ื ื™ื, ืœื–ื”ื•ืช ืœื•ื’ื™ืงื” ืžืฉื•ืชืคืช ืฉืฉื™ื™ื›ืช ืœืฉื™ืจื•ืชื™ื ื ืคื•ืฆื™ื ื•ืœืžื ื•ืข ืงืจื™ืื•ืช ืžื™ื•ืชืจื•ืช ืœืžืกื“ ื ืชื•ื ื™ื ื‘ืืžืฆืขื•ืช ืฉื™ืžื•ืฉ ื—ื•ื–ืจ ื—ื›ื ื™ื•ืชืจ.

ื›ื™ืฆื“ ืžื™ืคื•ื™ SQL ื ืงื™ ืžืื™ืฅ ื›ืœ ืคืจื•ื™ืงื˜ ืžืžื•ืงื“ ื ืชื•ื ื™ื

ืคืจื•ื™ืงื˜ื™ื ื”ื›ื•ืœืœื™ื ื ืชื•ื ื™ื - ื‘ื™ืŸ ืื ื”ืขื‘ืจื•ืช, ื™ื•ื–ืžื•ืช ื ื™ืชื•ื— ืื• ื›ื•ื•ื ื•ืŸ ื‘ื™ืฆื•ืขื™ื - ืžืกืชืžื›ื™ื ืขืœ ื™ื“ื™ืขื” ื”ื™ื›ืŸ ื•ื›ื™ืฆื“ ื ื™ืชืŸ ืœื’ืฉืช ืœื ืชื•ื ื™ื. ื›ืืฉืจ SQL ืงื‘ื•ืจ ื•ืื™ื ื• ืžืชื•ืขื“, ื”ืคืจื•ื™ืงื˜ื™ื ื”ืœืœื• ื ืชืงืขื™ื. ืฆื•ื•ืชื™ื ืžื‘ื–ื‘ื–ื™ื ื–ืžืŸ ื‘ื—ื™ืคื•ืฉ ืื—ืจ ื”ื™ื’ื™ื•ืŸ, ืชื™ืงื•ืŸ ืื™ ืขืงื‘ื™ื•ืช ืื• ื›ืชื™ื‘ื” ืžื—ื“ืฉ ืฉืœ ืฉืื™ืœืชื•ืช ืฉื”ื ืœื ื™ื›ื•ืœื™ื ืœืืชืจ.

ืขื ืžื™ืคื•ื™ SQL ื ืงื™ ื•ืžืœื:

  • ื”ืขื‘ืจืช ืžืกื“ื™ ื ืชื•ื ื™ื ื ืขื” ืžื”ืจ ื™ื•ืชืจ ืขื ืคื—ื•ืช ืกื™ื›ื•ืŸ
  • ืฆื•ื•ืชื™ BI ืขื•ื‘ื“ื™ื ืขื ืžืงื•ืจื•ืช ืฉืื™ืœืชื•ืช ืžืื•ืžืชื™ื
  • ืžืคืชื—ื™ื ืžื ืคื™ื ื‘ืื’ื™ื ื•ืžื‘ืฆืขื™ื ืื•ืคื˜ื™ืžื™ื–ืฆื™ื” ื‘ื‘ื™ื˜ื—ื•ืŸ ืจื‘ ื™ื•ืชืจ
  • ืฆื•ื•ืชื™ ืื‘ื˜ื—ื” ื‘ื•ื“ืงื™ื ื ืชื™ื‘ื™ ื’ื™ืฉื” ื‘ืฆื•ืจื” ื™ืขื™ืœื” ื™ื•ืชืจ

ื”ืชื•ืฆืื” ื”ื™ื ืืจื’ื•ืŸ ืžื”ื™ืจ ื™ื•ืชืจ ื•ืžื™ื•ืฉืจ ื™ื•ืชืจ. ื‘ืžืงื•ื ืฉื›ืœ ืฆื•ื•ืช ื™ืคืขืœ ื‘ืกื™ืœื• ืขื ื™ื“ืข ื—ืœืงื™ ื‘ืฉืื™ืœืชื•ืช, ื›ื•ืœื ืขื•ื‘ื“ื™ื ืžืžืงื•ืจ ืžืฉื•ืชืฃ ืฉืœ ืืžืช ืœื’ื‘ื™ ื”ืื•ืคืŸ ืฉื‘ื• ื”ืžืขืจื›ืช ืžืงื™ื™ืžืช ืื™ื ื˜ืจืืงืฆื™ื” ืขื ื ืชื•ื ื™ื.

ื‘ืกื•ืคื• ืฉืœ ื“ื‘ืจ, ื‘ื ื™ื™ืช ืชืจื‘ื•ืช ืฉืœ ืžื•ื“ืขื•ืช SQL ื”ื•ืคื›ืช ืกื™ื›ื•ืŸ ื‘ืœืชื™ ื ืจืื” ืœืžื‘ื ื” ื’ืœื•ื™ - ื•ื™ื•ืฆืจืช ื‘ืกื™ืก ืœืคื™ืชื•ื— ืžื”ื™ืจ, ื‘ื˜ื•ื— ื•ืžื•ืฉื›ืœ ื™ื•ืชืจ.

SMART TS XL ื•ืืช ืืชื’ืจ ื”ื’ื™ืœื•ื™ ืฉืœ SQL

ืžืฆื™ืืช ื›ืœ ืžืฉืคื˜ SQL ื‘ื‘ืกื™ืก ืงื•ื“ ื–ื” ืœื ืจืง ืขื ื™ื™ืŸ ืฉืœ ืกืจื™ืงืช ืงื‘ืฆื™ื - ื–ื” ืขื ื™ื™ืŸ ืฉืœ ืœื”ื‘ื™ืŸ ืื™ืš ืฉืื™ืœืชื•ืช ื‘ื ื•ื™ื•ืช, ื”ื™ื›ืŸ ื”ืŸ ื—ื™ื•ืช ื‘ืคืœื˜ืคื•ืจืžื•ืช ื•ืื™ืš ื”ืŸ ืžืชื ื”ื’ื•ืช ื‘ื–ืžืŸ ืจื™ืฆื”. SMART TS XL ื ื‘ื ื” ื›ื“ื™ ืœืคืชื•ืจ ืืช ื”ืืชื’ืจ ื”ืžื“ื•ื™ืง ื”ื–ื” ื‘ืกื‘ื™ื‘ื•ืช ืืจื’ื•ื ื™ื•ืช ืžื•ืจื›ื‘ื•ืช, ื•ืžืฆื™ืข ืœื ืจืง ื–ื™ื”ื•ื™ ืฉืื™ืœืชื•ืช ืืœื ื ืจืื•ืช ืžื‘ื ื™ืช ืขืžื•ืงื” ืขืœ ืคื ื™ ืžืขืจื›ื•ืช ืžื“ื•ืจ ืงื•ื“ื, ืฉืคื•ืช ืžื•ื“ืจื ื™ื•ืช ื•ืืจื›ื™ื˜ืงื˜ื•ืจื•ืช ืžื‘ื•ื–ืจื•ืช.

ื—ืœืง ื–ื” ื‘ื•ื—ืŸ ื›ื™ืฆื“ SMART TS XL ืžืชืžื•ื“ื“ ืขื ื’ื™ืœื•ื™ SQL ืฉื‘ื• ื›ืœื™ื ืื—ืจื™ื ื ื•ืคืœื™ื.

https://www.youtube.com/watch?v=Mab0qzkGPpg

ื—ื™ืœื•ืฅ SQL ืž-COBOL, Java, PL/SQL ื•-Modern Stacks

SMART TS XL ืชื•ืžืš ื‘ื ื™ืชื•ื— ื—ื•ืฆื” ืฉืคื•ืช ืขืœ ืคื ื™ ื›ืžื” ืžื”ืกื‘ื™ื‘ื•ืช ื”ืžื•ืจื›ื‘ื•ืช ื‘ื™ื•ืชืจ ื”ื ืžืฆืื•ืช ื‘ืฉื™ืžื•ืฉ ื›ื™ื•ื. ื”ื•ื ื™ื›ื•ืœ ืœื–ื”ื•ืช SQL ืžื•ื˜ื‘ืข ื‘ืžื™ื™ื ืคืจื™ื™ื COBOL, ืคืจื•ืฆื“ื•ืจื•ืช ืžืื•ื—ืกื ื•ืช ื‘-Oracle PL/SQL, ืฉืื™ืœืชื•ืช ืžื•ื˜ื‘ืขื•ืช ื‘-Java ืื• Python ื•-SQL ื“ื™ื ืžื™ ื”ืžืคื•ื–ืจ ืขืœ ืคื ื™ ืžืขืจื›ื•ืช ืžื•ื“ื•ืœืจื™ื•ืช.

ื‘ืžืงื•ื ืœื”ืกืชืžืš ืขืœ ื”ืชืืžืช ื“ืคื•ืกื™ื ืคืฉื•ื˜ื”, SMART TS XL ืžื‘ื™ืŸ ืืช ื”ืžื‘ื ื” ื”ืชื—ื‘ื™ืจื™ ื•ื”ืกืžื ื˜ื™ ืฉืœ ื›ืœ ืฉืคื”. ื”ื•ื ืขื•ืงื‘ ืื—ืจ ืงื˜ืขื™ ืฉืื™ืœืชื•ืช ืขืœ ืคื ื™ ืžืฉืชื ื™ื, ืงืจื™ืื•ืช ืœืžืชื•ื“ื” ื•ืขื ืคื™ื ืžื•ืชื ื™ื, ืžืฉื—ื–ืจ ืืช ื”ื”ื™ื’ื™ื•ืŸ ื”ืžืœื ืฉืœ SQL - ื’ื ื›ืืฉืจ ื”ื•ื ืžืฉืชืจืข ืขืœ ืคื ื™ ืžืื•ืช ืฉื•ืจื•ืช ืื• ืงื‘ืฆื™ื ืžืจื•ื‘ื™ื.

ื–ื” ื”ื•ืคืš ืื•ืชื• ืœื™ืขื™ืœ ื‘ืื•ืคืŸ ื™ื™ื—ื•ื“ื™ ื‘ืกื‘ื™ื‘ื•ืช ืฉื‘ื”ืŸ SQL ืฉื–ื•ืจ ืขืžื•ืง ื‘ื”ื™ื’ื™ื•ืŸ ืคืจื•ืฆื“ื•ืจืœื™ ืื• ืงื‘ื•ืจ ื‘ื–ืจื™ืžื•ืช ืขื‘ื•ื“ื” ืžื“ื•ืจ ืงื•ื“ื.

ืงื™ืฉื•ืจ SQL ืœืชื•ื›ื ื™ื•ืช, ื ื”ืœื™ื ื•ืขื‘ื•ื“ื•ืช ื”ืžืฉืชืžืฉื•ืช ื‘ื•

ืื—ื“ ื”ืืชื’ืจื™ื ื”ื’ื“ื•ืœื™ื ื‘ื™ื•ืชืจ ื‘ื’ื™ืœื•ื™ SQL ื”ื•ื ื”ื”ืงืฉืจ. ืžืฆื™ืืช ืฉืื™ืœืชื” ืžื•ืขื™ืœื” - ืื‘ืœ ืœื“ืขืช ืžื™ ืงื•ืจื ืœื–ื”, ื”ื™ื›ืŸ ื”ื•ื ืžื‘ืฆืข, ื•ื‘ืื™ื–ื• ืคื•ื ืงืฆื™ื” ืขืกืงื™ืช ื”ื•ื ืชื•ืžืš ื”ื•ื ืžื” ืฉื”ื•ืคืš ืืช ื”ื’ื™ืœื•ื™ ืœืคืขื•ืœื”.

SMART TS XL ืžืงืฉืจ ืื•ื˜ื•ืžื˜ื™ืช ื”ืฆื”ืจื•ืช SQL ืœืชื•ื›ื ื™ื•ืช ื”ืžืงื•ืจ ืฉืœื”ื, ื ื”ืœื™ื ืžืื•ื—ืกื ื™ื, ืขื‘ื•ื“ื•ืช ืืฆื•ื•ื” ื•ืคื•ื ืงืฆื™ื•ืช ื™ื™ืฉื•ืžื™ื. ื–ื” ืžืจืื” ืืช ื”ืงืฉืจื™ื ื‘ื™ืŸ ืฉื’ืจื•ืช ืฉื™ื—ื•ืช ืœ-SQL ืฉื”ื ืžืคืขื™ืœื™ื, ืžื” ืฉืžืงืœ ืขืœ:

  • ืขืงื‘ื• ืื—ืจ ื ืชื™ื‘ ื”ื‘ื™ืฆื•ืข ื”ืžืœื ืฉืœ ืฉืื™ืœืชื”
  • ื”ื‘ืŸ ื›ื™ืฆื“ ืชื•ืฆืื•ืช ืฉืื™ืœืชื•ืช ืžืฉืคื™ืขื•ืช ืขืœ ื”ื”ื™ื’ื™ื•ืŸ ื‘ืžื•ืจื“ ื”ื–ืจื
  • ื–ื”ื” SQL ื›ืคื•ืœ ืื• ืœื ืขืงื‘ื™ ื‘ื™ืŸ ื”ืฉื™ืจื•ืชื™ื

ื”ืงื™ืฉื•ืจ ื”ื–ื” ื—ืฉื•ื‘ ื‘ืžื™ื•ื—ื“ ื‘ืžื”ืœืš ืขื™ื‘ื•ื“ ืžื—ื“ืฉ, ืกืงื™ืจื•ืช ืชืื™ืžื•ืช ืื• ื™ื•ื–ืžื•ืช ืฉื•ืฉืœืช ื ืชื•ื ื™ื, ืฉื‘ื”ืŸ ื”ื‘ื ืช ื”ื”ืงืฉืจ ื”ื™ื ืงืจื™ื˜ื™ืช ื›ื“ื™ ืœื”ื™ืžื ืข ืžื‘ืขื™ื•ืช ืฉืœ ืจื’ืจืกื™ื” ืื• ืฉืœืžื•ืช ื ืชื•ื ื™ื.

ื ืจืื•ืช ืฉืœ ืขืจื™ืžื” ืžืœืื” ืขื‘ื•ืจ ื ืชื™ื‘ื™ ื’ื™ืฉื” ืœื ืชื•ื ื™ื ืžื“ื•ืจ ืงื•ื“ื ื•ืžื•ื“ืจื ื™

ื‘ื ื™ื’ื•ื“ ืœื›ืœื™ื ืฉืžื ืชื—ื™ื ืจืง ืงื‘ืฆื™ ืžืงื•ืจ ืื• ืžื ื˜ืจื™ื ืฉืื™ืœืชื•ืช ื‘ื‘ื™ื“ื•ื“, SMART TS XL ื‘ื•ื ื” ืžื•ื“ืœ ืžืื•ื—ื“ ืžืœื ืฉืœ ื”ืžืขืจื›ืช ืฉืœืš. ื”ื•ื ืœื•ื›ื“ SQL ื‘ื›ืœ ืžืงื•ื ื‘ื• ื”ื•ื ื—ื™ - ื‘ืชื•ืš ืกืคืจื™ ื”ืขืชืงื” ืฉืœ COBOL, ืกืงืจื™ืคื˜ื™ื ืœืขื‘ื•ื“ื”, ืฉื›ื‘ื•ืช API ืื• ืžืกื’ืจื•ืช ORM.

ื”ื•ื ื’ื ืžื—ื‘ืจ ื‘ื™ืŸ ืฉืื™ืœืชื•ืช ืกื˜ื˜ื™ื•ืช ื•ื“ื™ื ืžื™ื•ืช ืขืœ ื™ื“ื™ ื ื™ืชื•ื— ื”ืื•ืคืŸ ืฉื‘ื• SQL ื‘ื ื•ื™, ืœื ืจืง ื”ื™ื›ืŸ ื”ื•ื ื›ืชื•ื‘. ื‘ื™ืŸ ืื ืฉืื™ืœืชื” ืžืงื•ื“ื“ืช ื‘ื—ื‘ื™ืœืช PL/SQL ืื• ื ื•ืฆืจืช ื‘ืื•ืคืŸ ื“ื™ื ืžื™ ื‘ืคื•ื ืงืฆื™ื™ืช Java, SMART TS XL ื™ื›ื•ืœ ืœืฉื˜ื— ื•ืœื‘ื ื•ืช ืื•ืชื•.

ื–ื” ืžืืคืฉืจ ืœืฆื•ื•ืชื™ื ืœืžืคื•ืช ืืช ื›ืœ ื”ืื™ื ื˜ืจืืงืฆื™ื•ืช ืฉืœ ืžืกื“ื™ ื”ื ืชื•ื ื™ื ืขืœ ืคื ื™ ืคืœื˜ืคื•ืจืžื•ืช, ืฉืคื•ืช ื•ื“ื•ืจื•ืช ืคื™ืชื•ื— - ื™ื›ื•ืœืช ื—ื™ื•ื ื™ืช ืœืžื•ื“ืจื ื™ื–ืฆื™ื”, ืชืื™ืžื•ืช ื•ืžืืžืฆื™ ืื™ื—ื•ื“ ืคืœื˜ืคื•ืจืžื•ืช.

ืžืงืจื™ ืฉื™ืžื•ืฉ: ืื•ืคื˜ื™ืžื™ื–ืฆื™ื”, ื”ืคื—ืชืช ืกื™ื›ื•ื ื™ื ื•ืžืžืฉืœ ื ืชื•ื ื™ื

ื”ื™ืชืจื•ื ื•ืช ืฉืœ SMART TS XL ืžืชืจื—ื‘ ื”ืจื‘ื” ืžืขื‘ืจ ืœื’ื™ืœื•ื™. ืขื ื ืจืื•ืช ืžืœืื” ืฉืœ SQL, ืฆื•ื•ืชื™ื ื™ื›ื•ืœื™ื:

  • ื”ืกืจ ืฉืื™ืœืชื•ืช ืžื™ื•ืชืจื•ืช ื•ืฉืคืจ ืืช ื”ื‘ื™ืฆื•ืขื™ื
  • ื”ืชืื ืืช ื”ื’ื™ืฉื” ืœืžืกื“ ื”ื ืชื•ื ื™ื ืขื ื“ืจื™ืฉื•ืช ื ื™ื”ื•ืœ ื”ื ืชื•ื ื™ื ื•ื”ืคืจื˜ื™ื•ืช
  • ืžืขืงื‘ ืื—ืจ ืœื•ื’ื™ืงื” ืฉืœ SQL ืขื‘ื•ืจ ื‘ื™ืงื•ืจืช ื•ื‘ื™ืงื•ืจืช ืจื’ื•ืœื˜ื•ืจื™ืช
  • ื”ืกืจ ืกื™ื›ื•ืŸ ืœื”ืขื‘ืจืช ืคืœื˜ืคื•ืจืžื•ืช ืขืœ ื™ื“ื™ ื—ืฉื™ืคืช ืชืœื•ืช ื ืกืชืจืช

ื‘ืงืฆืจื”, SMART TS XL ื”ื•ืคืš ืืช ื’ื™ืœื•ื™ SQL ืœื‘ืกื™ืก ืœื’ื™ืฉื” ื‘ื˜ื•ื—ื”, ื™ืขื™ืœื” ื•ืฉืงื•ืคื” ืœื ืชื•ื ื™ื. ื‘ื™ืŸ ืื ื”ืžืขืจื›ืช ืฉืœืš ืžืฉืชืจืขืช ืขืœ ืคื ื™ ืขืฉืจื•ืช ืฉื ื™ื ืื• ืžื™ืงืจื•-ืฉื™ืจื•ืชื™ื, ื”ื™ื ืขื•ื–ืจืช ืœืš ืœืžืฆื•ื, ืœื”ื‘ื™ืŸ ื•ืœื ื”ืœ ืืช ื”-SQL ืฉืžื ื™ืข ืืช ื”ืขืกืง ืฉืœืš.

ื”ืคื•ืš ืืช ื”ื‘ืœืชื™ ื ืจืื” ืœื’ืœื•ื™: ืžื“ื•ืข ื’ื™ืœื•ื™ SQL ื”ื•ื ื”ื™ืชืจื•ืŸ ื”ืืกื˜ืจื˜ื’ื™ ื”ื‘ื ืฉืœืš

SQL ืžืกืžื™ืš ืืช ื”ืœื™ื‘ื” ืฉืœ ื›ืžืขื˜ ื›ืœ ื™ื™ืฉื•ื ืืจื’ื•ื ื™, ืืš ื”ื ื•ื›ื—ื•ืช ืฉืœื• ื”ื™ื ืœืจื•ื‘ ืžืงื•ื˜ืขืช, ืœื ืžืชื•ืขื“ืช ื•ืœื ืžื•ื‘ื ืช. ืžืฉืื™ืœืชื•ืช ืกื˜ื˜ื™ื•ืช ื‘ืžืขืจื›ื•ืช ืžื“ื•ืจ ืงื•ื“ื ื•ืขื“ ืœื”ืฆื”ืจื•ืช ืฉื ื‘ื ื• ื‘ืื•ืคืŸ ื“ื™ื ืžื™ ื‘ืฉื™ืจื•ืชื™ื ืžื•ื“ืจื ื™ื™ื, SQL ืžื ื™ืขื” ื”ื—ืœื˜ื•ืช ืงืจื™ื˜ื™ื•ืช ืœืขืกืง, ืืš ืœืจื•ื‘ ืžืกืชืชืจืช ื‘ืžืงื•ืžื•ืช ืฉืฆื•ื•ืชื™ื ืฉื•ื›ื—ื™ื ืœื—ืคืฉ - ืื• ืœื ื™ื•ื“ืขื™ื ืื™ืš ืœื”ื’ื™ืข.

ื—ื•ืกืจ ื”ื ืจืื•ืช ื”ื–ื” ืื™ื ื• ืจืง ืื™ ื ื•ื—ื•ืช ื˜ื›ื ื™ืช. ื–ื• ืคื’ื™ืขื•ืช ืžื‘ื ื™ืช. ื’ื™ืœื•ื™ ืœื ืฉืœื ืฉืœ SQL ืžื•ื‘ื™ืœ ืœืœื•ื’ื™ืงื” ืžื™ื•ืชืจืช, ื’ื™ืฉื” ืœื ืขืงื‘ื™ืช ืœื ืชื•ื ื™ื, ื”ืขื‘ืจื•ืช ื›ื•ืฉืœื•ืช ื•ืคืขืจื™ ืชืื™ืžื•ืช ืฉืขืœื•ืœื™ื ืœืคื’ื•ืข ื‘ืฉืงื˜ ื”ืŸ ื‘ื‘ื™ืฆื•ืขื™ื ื•ื”ืŸ ื‘ืืžื•ืŸ.

ื”ื—ื“ืฉื•ืช ื”ื˜ื•ื‘ื•ืช ื”ืŸ ืฉื”ืืชื’ืจ ื”ื–ื” ื ื™ืชืŸ ืœืคืชืจื•ืŸ. ืขืœ ื™ื“ื™ ืžืขื‘ืจ ืžื ื™ื—ื•ืฉื™ื ืœื’ื™ืœื•ื™ ืžื•ื‘ื ื” - ืขืœ ื™ื“ื™ ืžืขืงื‘, ืžื™ืคื•ื™ ื•ื”ื‘ื ื” ืฉืœ ื›ืœ ืฉืื™ืœืชื” ืขืœ ืคื ื™ ื”ืขืจื™ืžื” - ืืจื’ื•ื ื™ื ืžื—ื–ื™ืจื™ื ืฉืœื™ื˜ื” ืขืœ ืื•ืคืŸ ื”ืชื ื”ื’ื•ืช ื”ืžืขืจื›ื•ืช ืฉืœื”ื. ืžืคืชื—ื™ื ืžืฉื™ื’ื™ื ื‘ื™ื˜ื—ื•ืŸ ื›ื“ื™ ืœื‘ืฆืข ืžื—ื“ืฉ ื‘ื‘ื˜ื—ื”. ืื“ืจื™ื›ืœื™ื ืžืชื›ื ื ื™ื ืฉื™ืจื•ืชื™ื ืขืžื™ื“ื™ื ื™ื•ืชืจ. ืฆื•ื•ืชื™ ืฆื™ื•ืช ืžืืžืชื™ื ื‘ื‘ื”ื™ืจื•ืช. ื•ื”ืขืกืง ื‘ื›ืœืœื•ืชื• ืžืชืงื“ื ืขื ืคื—ื•ืช ื”ืคืชืขื•ืช ื•ืคื—ื•ืช ืกื™ื›ื•ื ื™ื.

ื ืจืื•ืช SQL ืืžื™ืชื™ืช ืื™ื ื” ืžื•ืชืจื•ืช. ื–ื”ื• ื‘ืกื™ืก ืœืžื•ื“ืจื ื™ื–ืฆื™ื” ื ืงื™ื™ื”, ืฉืงื™ืคื•ืช ืžืขืจื›ืช ื•ืฉืœืžื•ืช ื ืชื•ื ื™ื ื‘ืงื ื” ืžื™ื“ื”. ื›ื›ืœ ืฉื–ื” ื™ื”ืคื•ืš ืœื—ืœืง ืžื”ืชืจื‘ื•ืช ื”ื”ื ื“ืกื™ืช ืฉืœืš ืžื•ืงื“ื ื™ื•ืชืจ, ื›ืš ื”ืžืขืจื›ื•ืช ืฉืœืš ื™ื”ื™ื• ื—ื–ืงื•ืช ื•ื–ืจื™ื–ื•ืช ื™ื•ืชืจ.

ื”ืฉืื™ืœืชื•ืช ื›ื‘ืจ ืฉื. ืขื›ืฉื™ื• ื”ื’ื™ืข ื”ื–ืžืŸ ืœืžืฆื•ื ืื•ืชื - ื•ืœื”ืคืขื™ืœ ืื•ืชื ื‘ืฆื•ืจื” ื”ื ื›ื•ื ื”.