The code snippet below uses the Pubs sample database that comes free with MS SQL Server.

USE Pubs
GO

SELECT STUFF((SELECT ',' + au_fname FROM Authors FOR XML PATH('')),1, 1, '') AS Column2CSVString

The output of the code snippet is as follows.

Abraham,Reginald,Cheryl,Michel,Innes,Ann,Marjorie,Morningstar,Burt,Sheryl,Livia,Shiva,Charlene,Stearns,Heather,Michael,Sylvia,Albert,Anne,Meander,Dean,Dirk,Johnson,Akiko

To order the column values in ASC or DESC order, add the ORDER BY clause after the tablename as shown below.

USE Pubs
GO

SELECT STUFF((SELECT ',' + au_fname FROM Authors ORDER BY 1 ASC FOR XML PATH('')),1, 1, '') AS Column2CSVString

The output of the code snippet is as follows.

Abraham,Akiko,Albert,Ann,Anne,Burt,Charlene,Cheryl,Dean,Dirk,Heather,Innes,Johnson,Livia,Marjorie,Meander,Michael,Michel,Morningstar,Reginald,Sheryl,Shiva,Stearns,Sylvia

Finally, if you want to make this really generic and use dynamic SQL to pass in the column name and table name and delimiter, then let me know and I will post the code here.

exec sp_MSforeachtable "truncate table ? PRINT'? truncated '"