By: Matt

Matt — Mon, 12 Dec 2011 15:15:31 +0000

Thank you so much. I have been searching for a “duckies and bunnies” version of this so I could understand it. MySQL and the GROUP_CONCAT thing is a touch easier on my head. Much appreciated.

By: raymond lew

raymond lew — Thu, 19 Feb 2009 20:52:10 +0000

Hello Fool, thank you this page and the method. I have been making good use of this until I hit some quotes. The quotes get transformed into " for me; not what I want. I tweaked the query a bit and came up with xml path (”) which deals with the quotes.

Here’s my working code:
/* Create a table variable to play with */
DECLARE @myTable TABLE
(customerID INT, textData VARCHAR(10));

/* Populate some test rescords */
INSERT INTO @myTable
SELECT 1, ‘a”"b”c’ UNION All
SELECT 1, ‘de”> SELECT 2, ‘uvw’ UNION All
SELECT 2, ‘xyz’

/* Just take a look at the data
before we format it */
–SELECT * FROM @myTable;

/* Let’s take a look at what
For XML Raw will return
for us */
SELECT textData AS ‘X’
FROM @myTable
WHERE customerID = 1
ORDER BY textData
FOR XML raw;

SELECT textData as ‘X’,textData as ‘X’
FROM @myTable
WHERE customerID = 1
ORDER BY textData
FOR XML path(”);

/* Now consolidate the data, using
the For XML Raw option to
concatenate the textData column */
SELECT customerID
, REPLACE( REPLACE( REPLACE(
( SELECT textData AS ‘X’
FROM @myTable AS a
WHERE a.customerID = b.customerID
ORDER BY textData
FOR XML path(”) )
, ”, ‘, ‘)
, ”, ”)
, ”, ”)
AS ‘textData’
FROM @myTable b
GROUP BY customerID;

If you run this, you’ll see that ‘>’ and ‘<’ are still problems. I suppose a couple more replaces will deal with these. Or there may be some kind of FOR XML hack.

Anyhow, thank you very much

mondo

Comments on: Row Concatenation in T-SQL

By: Matt

By: raymond lew