Substing data

We are trying to pull the number 1 from the below string.  To be sure its the number 1 located after the third LIT~(  
This value will always be after the third LIT~( string.  We were trying to use the charindex but couldn't get it to work.

~LIT~(sp00000009),~LIT~(),~LIT~(1),~LIT~(195)

Thanks we are using sql 2000.
stevendeveloperAsked:
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pcelbaCommented:
I would guess you need the number from parentheses after the third occurrence of the '~LIT~(' string not the number 1.

To avoid long complex expression you can create following function:
CREATE FUNCTION dbo.GetNrAfterLit3rd(@inpstr AS varchar(200))
RETURNS varchar(200)
AS
BEGIN
  DECLARE @retval AS varchar(200), @substr1 AS varchar(200), @substr2 AS varchar(200)
  SET @retval = ''
  SET @inpstr = SUBSTRING(@inpstr, CHARINDEX('~LIT~(', @inpstr), 200)
  SET @substr1 = STUFF(SUBSTRING(@inpstr, 7, 200), CHARINDEX('~LIT~(', SUBSTRING(@inpstr, 7, 200)), 6, '~XXX~(')
  SET @substr2 = SUBSTRING(@substr1, CHARINDEX('~LIT~(', @substr1)+6, 200)
  SET @retval = SUBSTRING(@substr2, 1, CHARINDEX(')', @substr2)-1)
  RETURN @retval
END

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Calling sample:
DECLARE @str AS varchar(100)
SET @str = '~LIT~(sp00000009),~LIT~(),~LIT~(0123),~LIT~(195)'
SELECT dbo.GetNrAfterLit3rd(@str)

Tested on SQL 2008 but it should work on SQL 2000. The constant 200 repeated several times in the code means the maximum input string length. I am just not sure about the SUBSTRING() function behavior in SQL 2000 when the third parameter exceeds the actual string length.
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stevendeveloperAuthor Commented:
Thank you very much for the help works excellent!
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