Returns a string containing the SQLSTATE value returned by an SQL statement.
If you do not pass a statement resource as an argument to db2_stmt_error, the driver returns the SQLSTATE value associated with the last attempt to return a statement resource, for example, from db2_prepare or db2_exec.
To learn what the SQLSTATE value means, you can issue the following command at a DB2 Command Line Processor prompt: db2 '? sqlstate-value'. You can also call db2_stmt_errormsg to retrieve an explicit error message and the associated SQLCODE value.
A valid statement resource.
Returns a string containing an SQLSTATE value.