Case Statement Sql Multiple column check for dates - sql

Question

I have a stored procdure that uses case statement as follows: What I am trying to do is evaluate 2 columns in the testTable for dates. So the below case statement says that if stop_date is null or greater than current date then set is_active cloumn is Y else N
What I am trying to do is also evaluate another date column say another_stop_date and check if it is null or has a date greater then today and use same logic to update the is_active column
I am not sure if we can use multiple case statement logic to update a single column?
I have commented the code below where I am not getting the right results
Basically need to evaluate stop_dt and another_stop_date columns from testTable!
USE [Test]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROC [dbo].[p_test]
#Blank_Row CHAR(1) = 'N'
AS
BEGIN
SET NOCOUNT ON
DECLARE #TD DATETIME
SELECT #TD = GETDATE()
DECLARE #tempTable TABLE (
ID INT,
c_id INT,
desc varchar(40),
date datetime,
s_col TinyINT,
is_active char(1),
stuff VARCHAR(8))
INSERT INTO #tempTable
SELECT id, c_id, desc, max( date ), 1,
CASE WHEN (stop_dt IS NULL OR stop_dt > #TD) THEN 'Y'
--//Case When (another_stop_date is NULL or another Stop_date > #TD) THEN 'Y'<-----confused here
ELSE 'N' END,
stuff
FROM testTable
GROUP BY id, stop_dt, c_id, desc, stuff, another_stop_date
Select * from tempTable

Answer 1

You can combine clauses in a case statement with the usual logical operators, as well as having separate cases:
Case
When
(stop_dt is null or stop_dt > #td) and
(another_stop_date is null or another_stop_date > #td)
Then 'Y'
Else 'N'
End

Answer 2

Case statement operate close to if statements and can have multiple clauses.
Case when condition_1 > 1 then 'hi'
when condition_1 < 14 then 'no'
when condition_89 > 12 then 'why is this here'
else 1
end
Apply it to your statement:
CASE WHEN (stop_dt IS NULL OR stop_dt > #TD) THEN 'Y'
When (another_stop_date is NULL or another Stop_date > #TD) THEN 'Y'<-----confused here
ELSE 'N' END