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TSQL Function

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Topic

CORRUPT27
Starting Member

4 Posts

Posted - 2008-06-20 : 17:11:08

Hey guys,
I have been trying to get a function to work but have been having a hard time. The tables that are used are a translation and validation tables. But the translation can be from different tables. What i would like the function to do is take in a 'description of a type' and a language code and send back the translated version. The issue is that the table is dynamic and there is my issue with my function.

ALTER FUNCTION [dbo].[Trans]
(
@Trans_description AS NVarchar(200),
@languageid AS nvarchar(10)
)
RETURNS nvarchar(50)
AS
BEGIN
DECLARE
@return AS nvarchar(50),
@TABLENAME AS nvarchar(50),
@sql AS nvarchar(100)
set @TableName = (select top(1) listtable from validationType where validationtypeDesc = @Trans_description)

SET @return =
(SELECT TOP (1) ValidationDesc FROM [translationvalidationlist] WHERE validationpartyid IN
(SELECT validationpartyid FROM @TableName WHERE validationtypePartyid IN
(select validationtypepartyid FROM validationtype WHERE validationtypeDesc = @Trans_description
))AND LANGUAGEID = @languageid)

RETURN @return

END

Is there anyway to do a @return = exec(@sql) of course sql would be the current @return. Right now i get the error Must declare the table variable "@TableName".

Thank you so much for all your help.

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2008-06-20 : 17:13:00

You can use sp_executesql to get data back from dynamic SQL.

Tara Kizer
Microsoft MVP for Windows Server System - SQL Server
http://weblogs.sqlteam.com/tarad/

Subscribe to my blog

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2008-06-20 : 17:13:16

You can't do that in a function, since functions do not accept dynamic sql.
However, if the number of table names are fixed (always one of for example 5), you can have if statements further down.

E 12°55'05.25"
N 56°04'39.16"

CORRUPT27
Starting Member

4 Posts

Posted - 2008-06-23 : 09:03:38

Their not fixed. But thank you so much for the help

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2008-06-23 : 10:01:54

quote:
Originally posted by CORRUPT27

Their not fixed. But thank you so much for the help

Why? cant you try using a procedure for the same?

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