PL/SQL pomoc oko zadatka

Pozdrav.

Ako moze neko da mi pomogne oko ova dva zadatka, bio bih zahvalan.

Prvi: Create PL/SQL function JMBG_CHECK (v_jmbg) for JMBG validity check. JMBG_CHECK returns:
0 if JMBG is correct,
error code if JMBG is not correct.

Drugi: Create and describe script for DB backup for following configuration:
Oracle RAC DB 11g, two nodes connected to ASM instance. DB servers platform is Red Hat Enterprise Linux 4 AS.

Izvinjavam se moderatorima ako tema nije na pravom mestu.

Hvala.

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