SQLSTATE Variable Usage
You can use the SQLSTATE variable in an ESQL/Fortran program to return status information about the last SQL statement that was executed. SQLSTATE must be declared in a declaration section and must be in uppercase. Also, it is valid across all sessions, so you only need to declare one SQLSTATE per application.
To declare this variable, use:
character*5 SQLSTATE
or:
character*5 SQLSTA