After the sub of the exec JCL, i've got the following error :
SQLCODE = -991 Error = ALL ATTACH WAS UNABLE TO ESTABLISH AN IMPLICIT CONNECT OR OPEN TO DB2
This error is triggered when i call a module that allows to query a table.
PS : i have the necessary privileges for the table.
Thanks.
From IBM's page: -991 CALL ATTACH WAS UNABLE TO ESTABLISH AN IMPLICIT CONNECT OR OPEN TO DB2. RC1= rc1 RC2= rc2
And some general links for SQL return code information: