what are the performance and scalability characteristics of mysql? : Sql dba

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What is the advantage of index in sql?

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how can we encrypt and decrypt a data present in a mysql table using mysql? : Sql dba

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How many sql statements are used?

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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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What does plvtab enables you to do when you showthe contents of pl/sql tables?

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Where do we use pl sql?

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How to execute multiple sql statements in a single annonymous block irrespective of the sql statement result?

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explain commit and rollback in mysql : sql dba

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Explain autonomous transaction.

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What is sql profiler in oracle?

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I need to write a simple query,which one is better select statement or stored procedure?and why?

2 Answers   iGate,

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