How do I know if I have sql express or standard?

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write a query to find out the no. of employees whose age is less than 25 and max of salary for the employees belonging to a particular department is less than 20000

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What is the basic structure of PL/SQL ?

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If 100 tables are there in user_tables.I want to find in which table zero records are there with table name.Is it possible?

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how to calculate expressions with sql statements? : Sql dba

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What is vector point function?

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What does select top 1 do in sql?

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Can a commit statement be executed as part of a trigger?

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diff b/w function and procedure?

9 Answers   iFlex,

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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 is attribute indicator in pl sql?

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How is pl sql different from sql?

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