Sql Merging multiple records into one record

Question

I have table with two columns user_id and tags.

  user_id    tags
    1    
    1    
    1    

        

Answer 1

Try this one -:

SELECT t2.userid,
stuff((
SELECT ', ' + t1.tags
FROM table_name as t1
where t1.userid = t2.userid
FOR XML PATH('')
), 1, 2, '')
FROM table_name as t2
GROUP BY t2.userid

I hope this helps you out.

Check the example -: http://www.sqlfiddle.com/#!3/85c89/6