Does indexing improve query performance?
what are the different types of joins?
what is schema? : Sql dba
What is bulk collect in pl sql?
Where is pl sql used?
What is a REF CURSOR? Compare strong and week ref cursor types.
When do we create bitmap indexes
How to write html code in pl sql?
Why is nosql good?
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 do I count duplicates in sql?
What is flag in sql?
Can we use join in subquery?
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