Database table definition features reference

StackOverflow https://stackoverflow.com/questions/3439423

  •  27-09-2019
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Question

I am looking for some reference which can help me in finding out the DDL (Data Definition Language) differences in multiple databases (Oracle, DB2, Sybase, SQL Server, MySQL, Firebird, PostgreSQL, Ingres, HSQL, H2 Database, Derby).

  • What all constraints are supported by each database?
  • Whether table/column comments are supported or not?
  • Auto increment of column is possible or not?
  • information schema is available to find out the schema details etc?
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Solution

Wikipedia has a page with extensive comparison of database engines.

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