Further reading

• For more information on MySQL error codes, visit https://dev.mysql.com/doc/refman/8.0/en/server-error-reference.html.
• For more information on MySQL SQL states in error handling, visit https://dev.mysql.com/doc/refman/5.6/en/declare-handler.html.
• For more information on Oracle flow control statements, visit https://docs.oracle.com/cd/E18283_01/appdev.112/e17126/controlstatements.htm.
• For more information on PostgreSQL flow control statements, visit https://www.postgresql.org/docs/11/plpgsql-control-structures.html#PLPGSQL-CONTROL-STRUCTURES-LOOPS.
• For more information on Oracle error handling, visit https://docs.oracle.com/cd/E11882_01/timesten.112/e21639/exceptions.htm#TTPLS195.
• For more information on PostgreSQL error handling, visit https://www.postgresql.org/docs/11/plpgsql-errors-and-messages.html.
• For more information on SQL Server TRY CATCH statements,...