What is Output of This query and Why?

Question

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SQL-Server-2008R2

SQL

declare @table as table
(
  id int identity(1,1) 
 ,salary int 
)

insert into @table values(1000)
insert into @table values(2000)
insert into @table values(5000)
insert into @table values(4000)
insert into @table values(1000)
insert into @table values(8000)
insert into @table values(9000)
insert into @table values(6000)
insert into @table values(1000)
insert into @table values(7000)
insert into @table values(3000)

select A.salary from @table as A
where (select count(*) from @table B
            where b.salary < A.salary)>5

Posted 28-Jan-16 18:13pm

Ankit Bhanderi

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csharpbd · Accepted Answer · 2016-01-28T20:02:00

Solution 1

Output:

salary
-------
5000
8000
9000
6000
7000

Explanation:
Below sql snippet selects single row from temp table.

select A.salary from @table as A

Here where condition is a sub query. Lets checkout this sub query.

select count(*) from @table B where b.salary < A.salar

This query gives the counts of those whose salary is greater than the salaries of A.

If this count is greater than 5 then those salaries will be printed!

Posted 28-Jan-16 20:02pm

csharpbd

Comments

Magic Wonder 29-Jan-16 2:28am

Are you sure "If this count is greater than 5 then those salaries will be printed!"???

csharpbd 29-Jan-16 5:18am

yeah pretty sure that if the value of count is greater than 5 then those rows will be in output.