What is mdf ldf and ndf?

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what are the other commands to know the structure of table using mysql commands except explain command? : Sql dba

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Does truncate remove indexes?

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What are expressions?

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what is the difference between a local and a global temporary table? : Sql dba

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What are two virtual tables available during database trigger execution ?

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how to retrieve last tree records from table? select *from emp where rownum > (select count(*)-3 from emp); i am using this query to get last three records from table but its not giving any output, so please tell me what is the error in this query.

16 Answers  

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What are different clauses used in sql?

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how to drop an existing index in mysql? : Sql dba

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Where the integrity constrints are stored in Data Dictionary?

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which operator is used in query for pattern matching? : Sql dba

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I want to display the employees who have joined in last two months. (It should be executed randomly means If I execute the query in March it should display Jan and Feb joined employees. Same query if i execute in Feb, 2007 it should display dec, 2006 and jan 2007 joined employees.

15 Answers   Wipro,

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