user defined functions & columns

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user defined functions & columns

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newbie_sql

Posted Wednesday, October 14, 2009 9:50 AM

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Last Login: Tuesday, April 27, 2010 8:09 AM
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I have created a user defined function that takes a string as input.
EG: Create function func_new(@str varchar(20))
returns varchar(20)
begin
......
.....

return @str1
end

@str is a table column
How do I call this function so that all columns in the table get manipulated by the function??

Post #802880

LutzM

Posted Wednesday, October 14, 2009 12:20 PM

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Group: General Forum Members
Last Login: Wednesday, April 24, 2013 3:17 PM
Points: 6,731, Visits: 12,131

Please provide more information on what you're trying to do.
It's hard for us to translate
"......
.....
"
into something that "manipulates all columns in the table"

We don't even know what table you're talking about nor what kind of "manipulation" you're trying to do.

Please follow the first link in my signature on how to post sample data and I'm sure you'll get fast response that actually will answer your question.

Keep in mind that we don't see what you see since we can't look over your shoulder.

Lutz
A pessimist is an optimist with experience.

How to get fast answers to your question
How to post performance related questions
Links for Tally Table , Cross Tabs and Dynamic Cross Tabs , Delimited Split Function

Post #803011

newbie_sql

Posted Thursday, October 15, 2009 2:04 AM

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Create FUNCTION [dbo].[fnRemoveBadCharacter]
(
@BadString nvarchar(40)
)
RETURNS nvarchar(40)
AS
BEGIN

DECLARE @nPos INTEGER
SELECT @nPos = PATINDEX('%[^a-zA-Z0-9_]%', @BadString)

WHILE @nPos > 0
BEGIN
SELECT @BadString = STUFF(@BadString, @nPos, 1, '')
SELECT @nPos = PATINDEX('%[^a-zA-Z0-9_]%', @BadString)
END

This is the function I have created to remove bad characters.

How do I call this function to update col1(nvarchar(40)) of tbl1 to remove bad characters?

Post #803275

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