oracle - PL/SQL: What happens to collection contents inside a compound trigger in case of unhandled exception -


let's have following trigger:

create or replace trigger tr_test   update or insert or delete     on table_x   compound trigger     type array table of table_x%rowtype index binary_number;   recs array;    before each row     number default rowids.count + 1;   begin     recs(i).a := nvl(:new.a, :old.a);     recs(i).b := nvl(:new.b, :old.b);     recs(i).c := nvl(:new.c, :old.c);     recs(i).d := nvl(:new.d, :old.d);   end before each row;    after statement   begin     -- procedure here throw exception   end after statement;  end tr_test;

when after statement throws exception , unhandled, happen contents of array? automatically cleaned or remain in memory throughout session? if latter true, proper way handle prevent memory leaks? thanks!

pl/sql automatically takes care of variable scope you, don't have worry (in fact, there's nothing can explicitly anyway).

in case, array allocated when trigger starts (e.g. when first row inserted/updated/deleted), , remains until end of trigger (i.e. after after statement section finishes, or when exception raised , propogated caller).

when trigger goes out of scope, array no longer accessible, , oracle may deallocate memory used @ later point @ discretion.


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