What is difference between left and right outer join?
How do you handle exceptions. Give the syntax for it?
Why does sql need a server?
what is commit? : Sql dba
select * from emp where sal in(select max(sal) from emp) here there is any limit for in operator how many values accpect ?
What is a unique constraint?
Find out the 3rd highest salary?
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Are subqueries better than joins?
what is the difference between implicit and explicit trigger
What is sql performance tuning?
Why indexing is needed?
What is online transaction processing (oltp)?
what is the difference between char_length and length? : Sql dba