Why do we use joins?

0 Answers  

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..........refers to the disk mirroring

2 Answers   iFlex,

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how to insert the records in particular position

1 Answers  

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How do you create a unique index?

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What can sql server reporting services do?

0 Answers  

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What is implicit cursor in pl sql?

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What is the difference between union and union all command?

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How can you create Cursor with parametres ?

3 Answers  

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What is the difference between the sql*loader and import utilities? : aql loader

0 Answers  

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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,

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Why is sql better than hql?

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what tools available for managing mysql server? : Sql dba

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