What is the difference between clustered and non-clustered indexes?

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What is the full form of sql?

1 Answers  

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Can variables be used in sql statements?

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What is the difference between sql and isql*plus?

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Hi all, i have a table as follows empid empname mgrid deptid 1 a 3 4 2 b 1 5 3 c 2 3 4 d 3 6 5 e 4 7 i want the output as empname mgrname a c b a c b d c e d

4 Answers  

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Is sql considered coding?

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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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How to add Foreign key in a table after the creation of the table?

5 Answers   Satyam,

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What is the use of prepared statement?

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Explain ddl statements in pl/sql?

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what are the 'mysql' command line arguments? : Sql dba

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Can we use ddl statements in stored procedure?

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