DB2 SQL Code
When DB2 executes an SQL statement, it returns information about the statement execution which includes the SQL return code (SQLCODE) and the SQLSTATE, which indicate whether statement execution was successful.
Regardless of whether the application program provides an SQLCA or a stand-alone variable, SQLCODE is set by DB2 after each SQL statement is executed. DB2 conforms to the ISO/ANSI SQL standard as follows:
- If SQLCODE = 0, execution was successful.
- If SQLCODE > 0, execution was successful with a warning.
- If SQLCODE < 0, execution was not successful.