What if we write return in procedure?

0 Answers  

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what is global table

7 Answers   iFlex,

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what is the use of anchoring object? what r the difference between anchoring object & enclosing object? can any one tell me all the details?

0 Answers  

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how to get @@error and @@rowcount at the same time? : Sql dba

0 Answers  

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What is nosql example?

0 Answers  

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Is join an inner join?

0 Answers  

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What is sql server and ase?

0 Answers  

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What is error ora-12154: tns:could not resolve the connect identifier specified?

0 Answers  

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What is difference between CHAR and VARCHAR2?What is the maximum SIZE allowed for each type?

6 Answers   Saama Tech,

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how to check the 3rd max salary from an employee table? One of the queries used is as follows: select sal from emp a where 3=(select count(distinct(sal)) from emp b where a.sal<=b.sal). Here in the sub query "select count(distinct(sal)) from emp b where a.sal<=b.sal" or "select count(distinct(sal)) from emp b where a.sal=b.sal" should reveal the same number of rows is in't it? Can any one here please explain me how is this query working perfectly. However, there is another query to get the 3rd highest of salaries of employees that logic I can understand. Pls find the query below. "select min(salary) from emp where salary in(select distinct top 3 salary from emp order by salary desc)" Please explain me how "select sal from emp a where 3=(select count(distinct(sal)) from emp b where a.sal<=b.sal)" works source:http://www.allinterview.com/showanswers/33264.html. Thanks in advance Regards, Karthik.

4 Answers  

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What is form and report?

0 Answers  

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What are two parts of package ?

2 Answers   Infosys,

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