Question

I’m working a query that will retrieve various personal information, including first and last names. I want to change the order that the data is returned by based on a passed parameter, called @p_Code. When @p_Code is 4, I want to order by first name, then last name. If it’s not 4, then I want to order by last name, then first name.

I’m working with MS Sql.

Here’s the query as it stands:

Select Last,
       First,
       Phone,
       Email
From Master.dbo.Cust
Order by
case @p_Code
     when '4' then
         ([First], [Last])
     else
         ([Last], [First])
end

Answer 1

This should do it:

DECLARE @p_Code VARCHAR(10)
SET @p_Code = '4'
Select [Last],
       [First],
       Phone,
       Email
From Master.dbo.Cust
Order by
case WHEN @p_Code = '4' THEN (RANK() OVER (ORDER BY [First], [Last]))
 ELSE (RANK() OVER (ORDER BY [Last],[First] )) END