How to execute a stored procedure inside a select query

Question

SELECT col1,
       col2,
       col3,

EXEC GetAIntFromStoredProc(T.col1) AS col4
     FROM Tbl AS T
     WHERE (col2 = @parm) 

How to write this

Answer 1

As long as you're not doing any INSERT or UPDATE statements in your stored procedure, you will probably want to make it a function.

Stored procedures are for executing by an outside program, or on a timed interval.

The answers here will explain it better than I can:

Function vs. Stored Procedure in SQL Server