How do I save a sql query?

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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.

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I have a table .in the table 100 recored is there .we have get the single row with out using clause..

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how can i read files from a pl/sq l program

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How do I run a sql trace?

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How do you select unique values in sql?

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How do you optimize a stored procedure in sql?

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what is union, minus and interact commands? : Sql dba

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Is sql an operating system?

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what is 'mysqlshow'? : Sql dba

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How does a self join work?

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How to display all Friday's in a year with date?

4 Answers   Flipkart,

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