How do you add a column to a table?
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declare lowerl number:= 1; upperl number:= 3; num varchar2(10); begin for i into lowerl..upperl loop num:=num||to_char(lowerl); if i=3 then upperl:=5; end loop; message(num); What will be the output ?
HOW CAN I FIND MAX SAL ,ENAME FROM EMP TABLE.
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What are the various restrictions imposed on view in terms of dml?
How do you rank data in sql?
Enlist the characteristics of pl/sql?
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