I'm trying to write a SQL commands within a stored procedure that allows me to take a VARCHAR input, evaluate to see whether it is an integer. If it is not, then it has to set a boolean value to false: 
So I want to write the following logic: 

```
IF @parameter <> an int
    SET isInt = FALSE

```

I read the TRY/CATCH article but I just don't know how to do it in SQL: <https://msdn.microsoft.com/en-ca/library/ms175976.aspx>