Splitting A String into Multiple Values in SQL Server 2000 - sql-server

Question

I'm asking the question on behalf of someone that works for my client that asked me this. I'm actually more familiar with mySQL than SQL Server, but unfortunately, SQL Server is what the client has used for years.
The question basically this: Is there a way in SQL Server to split a string into multiple values (e.g. array?) that can be used in a WHERE statement.
Here's a PHP example of what I'm talking about.
<?php
$string = "10,11,12,13";
$explode = explode(",", $string);
?>
$explode would be equal to array(10,11,12,13). What I need to do is something like this:
SELECT {long field list] FROM {tables} WHERE hour IN SPLIT(",", "10,11,12,13")
With SPLIT being my pseudo-code function that performs the splitting
The reason why I'm not doing this in, let's say, PHP, is because the query is being constructed by reporting software where we can't perform logic (such as my PHP code) before sending it to the database, and the multiple values are being returned by the software as a single string separated by pipes (|).
Unfortunately I do not have access to the reporting software (I think he said it was called Logi or LogiReports or something) or the query my associate was drafting up, but all that is really important for this question is the WHERE clause.
Any ideas?

Answer 1

Dynamic SQL can be used:
declare #in varchar(10)
set #in = '10,11,12,13'
exec ('SELECT {long field list] FROM {tables} WHERE hour IN (' + #in + ')')

Answer 2

Several methods here: Arrays and list in SQL Server
For short strings, I prefer a numbers table
I could copy/paste from here but it really is worth reading

Answer 3

You could use a Function which receives a string containing the "id's" separated by pipes, and return it as a table, which you can query and use in a subquery maybe, like this:
SELECT {long field list] FROM {tables} WHERE hour IN
(SELECT OrderID from dbo.SplitOrderIDs('2001,2002'))
ALTER FUNCTION [dbo].[SplitOrderIDs]
(
#OrderList varchar(500)
)
RETURNS
#ParsedList table
(
OrderID int
)
AS
BEGIN
DECLARE #OrderID varchar(10), #Pos int
SET #OrderList = LTRIM(RTRIM(#OrderList))+ ','
SET #Pos = CHARINDEX(',', #OrderList, 1)
IF REPLACE(#OrderList, ',', '') <> ''
BEGIN
WHILE #Pos > 0
BEGIN
SET #OrderID = LTRIM(RTRIM(LEFT(#OrderList, #Pos - 1)))
IF #OrderID <> ''
BEGIN
INSERT INTO #ParsedList (OrderID)
VALUES (CAST(#OrderID AS int)) --Use Appropriate conversion
END
SET #OrderList = RIGHT(#OrderList, LEN(#OrderList) - #Pos)
SET #Pos = CHARINDEX(',', #OrderList, 1)
END
END
RETURN
END

Answer 4

you can use this stored procedure.
I hope that be useful for you.
CREATE PROCEDURE SP_STRING_SPLIT (#String varchar(8000),#Separator Char(10),#pos_select int=0)
AS
BEGIN
SET NOCOUNT ON
DECLARE #Caracter varchar(8000)
DECLARE #Pos int
Set #Pos=1
Set #Caracter=''
CREATE TABLE #ARRAY
( String varchar(8000) NOT NULL,
Pos int NOT NULL IDENTITY (1, 1)
)
While (#Pos<=len(#String))
Begin
If substring(#String,#Pos,1)=Ltrim(Rtrim(#Separator))
Begin
INSERT INTO #ARRAY SELECT #Caracter
SET #Caracter=''
End
Else
Begin
--forma la palabra}
Set #Caracter=#Caracter+substring(#String,#Pos,1)
End
If #Pos=len(#String)
Begin
INSERT INTO #ARRAY SELECT #Caracter
End
SET #Pos=#Pos+1
End
SELECT Pos,String FROM #ARRAY where (Pos=#pos_select Or #pos_select=0)
END
GO
exec SP_STRING_SPLIT 'HELLO, HOW ARE YOU?',',',0