Answer Posted / nag.vamshi

select* from(select ename,deptno,sal,row_number()
over(partiton by deptno order by sal)num from emp)
where num<=3
order by deptno;

What type of join is sql join?

921

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What are the basic techniques of indexing?

1012

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What is sql clause?

992

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explain the options of myisamchk to improve the performance of a table. : Sql dba

949

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What are different types of sql?

1095

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Table A Table B 1 1 2 1 3 1. Union & union all --> A Union B , A Union all B 2. Minus , Intersect --> A minus B , B Minus A , A Intersect B 3. Joins A join B , A Left Join B A Right Join B , A full Join B 4. %Type - Uses & Benifit 5. Truncate & Delete 6. Pragma Autonomus Transaction 7. how to Perform DDL from function or procedure 8. Can we have DML inside Function 9. Rank & Dense Rank diffrence 10. Water Mark in Oracle 11. Index , Can we have index in all column of table if no then why ?

954

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Is left join faster than inner join?

1062

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What is sql and db2?

938

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What is pl sql record in oracle?

966

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What is a column in a table?

1060

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what are set operators in sql? : Sql dba

982

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Is id a reserved word in sql?

1088

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Which is better varchar or nvarchar?

932

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Which command is used to call a stored procedure?

949

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What is the difference between a query and a report?

900

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