Hi ,

I have one table x with a,b,c column.
and second table y with column e,f,g

I have to insert record into Table y , in which column 'e' has to be maintain unique without applying any Trigger, Constraint, Sequence , PL/SQL.,
column 'f' will insert from table x column b.

Plz give me solution for this.



With Regards,
Rekha.


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