Oracle : Ошибка ORA-00034

"cannot %s in current PL/SQL session"
*Cause: An attempt was made to issue a commit or rollback from a PL/SQL
object (procedure, function, package) in a session that has this
disabled (by 'alter session disable commit in procedure')
*Action: Enable commits from PL/SQL in this session, or do not attempt
to use commit or rollback in PL/SQL when they are disabled
in the current session.

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