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# Compare Expiration dates

Posted on 2014-02-05
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I have a stored  procedure that assign a dollar amount based on an expiration date.  Initially a user would pay a \$1000 for each brand family.  But if the user would like to add styles they can do so without being charged.  Therefore  I have the case statement below.

`````` SELECT l.vchTransNum, l.vchManufacturer, b.vchBrand AS 'Brand Family',
CASE

--check online tables to see if brands have been submitted for this particular manu
WHEN EXISTS (SELECT vchBrand, vchManufacturer
FROM tblOnlineCLBrands o  WHERE o.vchBrand = b.vchBrand and o.vchManufacturer =l.vchManufacturer)
THEN 0.00

--checks in-house table to see if brands have been submitted for this manu and if this is renewal year
WHEN EXISTS (SELECT vchBrand, vchManufacturer
FROM tblCLBrands bf
INNER JOIN tblCLPermit p on bf.vchRecordID = p.vchRecordID
--WHERE bf.vchBrand = b.vchBrand and bf.vchManufacturer =l.vchManufacturer and Year(DATEADD (Year , 3, dtpermitDate))<= YEAR(GetDate()) )
WHERE bf.vchBrand = b.vchBrand and bf.vchManufacturer =l.vchManufacturer and dtExpirationDate > GETDATE())
THEN 0.00

ELSE 1000
END AS 'Cost of Brand'

FROM tblOnlineCLTempLab l

INNER JOIN (Select distinct vchBrand, vchTransNum  from tblOnlineCLTempBrands) b on l.vchTransNum  = b.vchTransNum

WHERE  l.vchTransNum = @TransNum
GROUP BY l.vchTransNum , l.vchManufacturer, b.vchbrand
``````

The second case line is giving me a hard time.  If users want to renew before the expiration date, it still assigns it zero dollars instead of \$1000. How can I program it to allow the user to pay before their date expires?
0
Question by:dlavar
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LVL 13

Expert Comment

ID: 39837818
There's nothing obviously wrong with the query as far as I can tell, so is it possible that the first case statement always evaluates to True?
0

LVL 25

Expert Comment

ID: 39837826
Could it be that dtExpirationDate  exists in both tblCLBrands and tblCLPermit tables, or in tblOnlineCLTempLab table itself?
0

Author Comment

ID: 39838858
When I commented out the first case statement, it resulted in a \$1000. The Expiration date is only in the Permit table.  I'm thinking that I may have to set a grace period of when the can renew their permit.
0

LVL 13

Expert Comment

ID: 39838916
In that case you'll have to check why the first case statement evaluates to True when you don't want it to. The problem is most likely not with the expiration date.
0

Accepted Solution

dlavar earned 0 total points
ID: 39874646
I had to set a grace period of 60 days in the stored procedure

`````` SELECT l.vchTransNum, l.vchManufacturer, b.vchBrand AS 'Brand Family',

CASE
-- check online tables to see if brands have been submitted for this particular manu
WHEN EXISTS (SELECT vchBrand, vchManufacturer
FROM tblOnlineCLBrands o  WHERE o.vchBrand = b.vchBrand and o.vchManufacturer =l.vchManufacturer)
THEN 0.00

--checks in-house table to see if brands have been submitted for this manu and if this is renewal year
--If today is 60 days before the expiration (before renewal time), charge 0.
WHEN EXISTS (SELECT vchBrand, vchManufacturer
FROM tblCLBrands bf
INNER JOIN tblCLPermit p on bf.vchRecordID = p.vchRecordID
WHERE bf.vchBrand = b.vchBrand and bf.vchManufacturer =l.vchManufacturer and  GETDATE() < DATEADD(Day , -60, dtExpirationDate) )
THEN 0.00

ELSE 1000
END AS 'Cost of Brand'

FROM tblOnlineCLTempLab l
INNER JOIN (Select distinct vchBrand, vchTransNum  from tblOnlineCLTempBrands) b on l.vchTransNum  = b.vchTransNum
WHERE  l.vchTransNum = @TransNum
GROUP BY l.vchTransNum , l.vchManufacturer, b.vchbrand
``````
0

Author Closing Comment

ID: 39885097
My solution was the one that worked and was most effective.
0

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