Stored Procedure To set a variable value to a Individual column

Question

I have a Table structure as

Empid Int,
EmpName Nvarchar,
Salary Numeric(18,2),
DeptNumber

I have Function which take 2 Argument. as :

ALTER Function [dbo].[GetTotalPrice] 
(
@Salary int,
@DeptNumber int
)
RETURNS int
AS
BEGIN
Declare @TotalSalary int
Select @TotalSalary=@Salary+@DeptNumber 
return @TotalSalary
End

And my Query is how should i develop a Stored procedure Which takes Each salary and DeptNumber in a Stored Procedure and send that to function and calculate a new Salary. i have tried developing several SP, but could not get any possible solution.

ALTER Proc [dbo].[S7] 
AS
BEGIN
Declare @salary int
Declare @DeptNo int
Select EmpId,EmpName, @salary=salary,@DeptNo=DeptNumber,Salary=dbo.GetTotalPrice(@salary,@DeptNo) 
from dbo.EmpInf
end

When i tried executing the above code it give the following error:

A SELECT statement that assigns a value to a variable must not be combined with data-retrieval operations.

Solution

You are using the same SELECT to put data in the variables and returning a result set from the Stored Procedure, you can't do both in the same statement.

ALTER Proc [dbo].[S7] 
AS
BEGIN
Select EmpId,EmpName, Salary=dbo.GetTotalPrice(salary,DeptNumber) from dbo.EmpInf
end