Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

  1. Categories >> Software >> Databases >> SQL PLSQL
  2. Suggest New Category

how will you find out the last three records in a table
with n no of records and delete them

Question Posted / guest

Answers were Sorted based on User's Feedback



how will you find out the last three records in a table with n no of records and delete them..

Answer / aswin

This query cost the performance :
delete from emp where empno in (select empno from (select
empno from emp order by rowid desc) where rownum <= 3)

Is This Answer Correct ?    9 Yes 0 No

how will you find out the last three records in a table with n no of records and delete them..

Answer / ajit

delete from emp
where empno in
(select empno
from emp
minus
select empno
from emp
where rownum <= ( select count(*) - 3
from emp
))

Is This Answer Correct ?    1 Yes 0 No

how will you find out the last three records in a table with n no of records and delete them..

Answer / sudipta santra

delete from
(select * from tab1
minus
select * from tab1 where rownum<n-2 order by rowid)

Is This Answer Correct ?    0 Yes 3 No

Post New Answer

More SQL PLSQL Interview Questions

What is the advantage of index in sql?

0 Answers  

What is a dirty read sql?

0 Answers  

What is the difference between the Primary and Foreign key?

7 Answers   Cap Gemini,

What is sql and how does it work?

0 Answers  

Define commit, rollback and savepoint?

0 Answers  

What is INSTEAD OF trigger ?

13 Answers   Hexaware, TCS,

How can u find column name from a table which have max value in a row.( not max value)

5 Answers  

How do I audit the sql sent to the server?

0 Answers  

how to calcuate the second highest salary of he employee

13 Answers   Synechron,

diff b/w function and procedure?

9 Answers   iFlex,

What is sql resultset?

0 Answers  

What is a Procedure ?

3 Answers  

For more SQL PLSQL Interview Questions Click Here
Categories