Interview Questions Answers in Oracle General, Ab Initio

vital_parsley

{ City } mumbai
< Country > india
* Profession *
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Question { Cognizant, 88457 }

find out the second highest salary?

Answer

We can use an OLAP function
select * from
(select ename,sal,dense_rank() over(order by sal desc)
rankings from emp ) a
where a.rankings = 2;

Is This Answer Correct ?

0 Yes

1 No

Question { IBM, 47074 }

How can you find the 2nd Highest salary in a file department wise in abinitio?

Answer

1)use a reformat.
2)Global variable which increments with every records only
if previous record is not equal to current record
3) output_select where sal == 2

Is This Answer Correct ?

3 Yes

2 No