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SQL programmingYou can use the HCL Informix® implementation of the SQL language to develop applications for Informix® database servers.
Guide to SQL: Syntax
SQL Statements
GET DIAGNOSTICS statementUse the GET DIAGNOSTICS statement to return diagnostic information about the most recently executed SQL statement.
EXCEPTION Clause
Using the INFORMIX_SQLCODE Keyword

Using the INFORMIX_SQLCODE Keyword

The INFORMIX_SQLCODE keyword returns the Informix®-specific status code. The same value is also available in the global SQLCODE variable. For more information, see the discussion of the SQLCODE variable in the Informix ESQL/C Programmer's Manual.