Explain the uses of a database trigger?


No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More SQL PLSQL Interview Questions

Hi, Can anybody please explain me the flow of the below query. I am not able to understand how this query works. This query is for finding the Nth highest salary.. SELECT DISTINCT (a.sal) FROM EMP A WHERE &N = (SELECT COUNT (DISTINCT (b.sal)) FROM EMP B WHERE a.sal<=b.sal); If N = 2 then second highest salary will be the o/p. If N = 3 then third highest salary will be the o/p. and so on.. Thanks, Nitin

5 Answers   Deloitte, Ness Technologies,


how can we destroy the cookie? : Sql dba

0 Answers  


i hv 30 rows with date.ex:1month hav 4 weeks i want 1st day of the every week.write the qry for that.example jan has 4 weeks i need 1st dd for evry wk

1 Answers   Aspire,


What normalization means?

0 Answers  


What is embedded sql with example?

0 Answers  






what is myisam? : Sql dba

0 Answers  


Can we use pl sql in sql server?

0 Answers  


What is full form of rtm?

0 Answers  


.  have a tablle like this: cust acc ----------- a 1 b 2 b 3 c 4 c 5 c 6 I Want below o/p: cust acc --------------- a 1 b 2|3 c 4|5|6 Please any one can you have any ideas share me. I have urgent requirement. CUST         ACC a            dv b            fg b            bh c            mk c            cl c            so result:- A  B   c dv fg mk    bh cl       so

3 Answers  


Can we use ddl statements in stored procedure?

0 Answers  


What is online transaction processing (oltp)?

0 Answers  


how to create user in sql and how to set password for that?

3 Answers  


Categories