What is coalesce in sql?
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What is RAC in oracle?
Why is pl sql needed?
Is primary key an index?
What are two parts of package ?
how can we take a backup of a mysql table and how can we restore it. ? : Sql dba
what are the difference between clustered and a non-clustered index? : Sql dba
Are null values same as that of zero or a blank space?
What is interval partition?
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 ?
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What is the execution plan in sql?
If a View on a single base table is manipulated will the changes be reflected on the base table?