sql - Using temp column to filter the results -

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my query this. 

select id,name,salary,(salary-2000) [deductedsalary]   employeedetails

i want use [deductedsalary] column in clause, similar below query. 

select      id, name, salary, (salary-2000) [deductedsalary]        employeedetails       [deductedsalary] > 5000

note: don't want use filter query 'salary' column

you can use subquery define alias:

select  *    (         select  salary-2000 deducted_salary         ,       *                          employeedetails          ) subqueryalias   deductedsalary > 5000

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