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Adding a field name to dynamic SQL

Posted on 2007-12-03
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797 Views
Last Modified: 2010-04-21
In the code below, I have a dynamic SQL statement that works (thanks to imitchie). The result set returns a select statement using  

AS ''Promo' + Cast(PromoID as Varchar)

I need to change that to dynamically read the PromoName field that's in the KScoop_Promo table (aka, change Promo1 to Birthday Club, Promo2 to whatever, based on the PromoName in the table).

Help is greatly appreciated.
declare @dsql varchar(max)

declare @SELECT varchar(max)

declare @LEFTJOINS varchar(max)

 

DECLARE	@ActiveCode varchar(2)

DECLARE	@ActiveCode2 varchar(2)

DECLARE	@StoreActive varchar(2)

 

SET @ActiveCode = 1

SET	@ActiveCode2 = 0

 

 

	SELECT  @SELECT =

			coalesce(@SELECT + ',', '') +  -- first one does not need comma

			' ISNULL(Promo' + Cast(PromoID as Varchar) + '.PromoFlag, 0) AS ''Promo' +

			Cast(PromoID as Varchar) + '''', 

			@LEFTJOINS = coalesce(@LEFTJOINS, '') +

			' LEFT JOIN (

					SELECT  pfl.StoreID, pfl.PromoFlag

					FROM    KScoop_PromoFlag pfl INNER JOIN

									KScoop_Promo pro ON pfl.PromoID = pro.PromoID

					WHERE   pro.PromoID = ' + Cast(PromoID as Varchar) + ' ) Promo' + Cast(PromoID as Varchar) + 

				' ON sto.StoreID = Promo' + Cast(PromoID as Varchar) + '.StoreID

	' ---<<--- leave this on the new line!

	FROM KScoop_Promo Order by PromoID

	 

	SELECT @dsql =

	'SELECT  sto.StoreID, sto.StoreName, sto.StoreActive,' + @SELECT +

	'

	FROM KScoop_Store sto ' +

	@LEFTJOINS +

	'

	WHERE StoreActive IN (' + @ActiveCode + ',' + @ActiveCode2 + ')' + 

	'

	ORDER BY sto.StoreName'

 

	EXEC (@dsql)

 

 

Current result set:

StoreID	StoreName	StoreActive	Promo1	Promo2	Promo3	Promo5

19	Axxon	                  1	1	0	1	1

...

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Question by:barnesco
2 Comments
 
LVL 11

Accepted Solution

by:
deroby earned 500 total points
ID: 20396296
Replace the  

'Promo' + Cast(PromoID as Varchar)

with the field you want (between Quotes for 'safety')


declare @dsql varchar(max)

declare @SELECT varchar(max)

declare @LEFTJOINS varchar(max)

 

DECLARE	@ActiveCode varchar(2)

DECLARE	@ActiveCode2 varchar(2)

DECLARE	@StoreActive varchar(2)

 

SET @ActiveCode = 1

SET	@ActiveCode2 = 0

 

 

SELECT  @SELECT =

			coalesce(@SELECT + ',', '') +  -- first one does not need comma

			' ISNULL(Promo' + Cast(PromoID as Varchar) + '.PromoFlag, 0) AS ''' + PromoName + '''', 

			@LEFTJOINS = coalesce(@LEFTJOINS, '') +

			' LEFT JOIN (

					SELECT  pfl.StoreID, pfl.PromoFlag

					FROM    KScoop_PromoFlag pfl INNER JOIN

									KScoop_Promo pro ON pfl.PromoID = pro.PromoID

					WHERE   pro.PromoID = ' + Cast(PromoID as Varchar) + ' ) Promo' + Cast(PromoID as Varchar) + 

				' ON sto.StoreID = Promo' + Cast(PromoID as Varchar) + '.StoreID

	' ---<<--- leave this on the new line!

	FROM KScoop_Promo 

    Order by PromoID

	 

	SELECT @dsql =

	'SELECT  sto.StoreID, sto.StoreName, sto.StoreActive,' + @SELECT +

	'

	FROM KScoop_Store sto ' +

	@LEFTJOINS +

	'

	WHERE StoreActive IN (' + @ActiveCode + ',' + @ActiveCode2 + ')' + 

	'

	ORDER BY sto.StoreName'

 

	EXEC (@dsql)

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Author Closing Comment

by:barnesco
ID: 31412349
Thank you!
0

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