Where is pl sql used?


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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,


What is substitution variable in pl sql?

0 Answers  


Write a query to find the names of users that begin with "um" in sql?

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what is timestamp in mysql? : Sql dba

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What are the different types of joins in sql?

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How can get second highest salary in sql?

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What is rownum?

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What are the popular database management systems in the it industry?

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What is the difference between SQL Constraint and PL/SQL constraint.Pls give all the constraint name.

3 Answers   TCS,


what is organisational index?

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How do rank () and dense_rank () differ?

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What are the types of queries in sql?

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