instruction: DEMO for Need help with a complex SQL query. http://stackoverflow.com/q/4015915/119477
response: SELECT DISTINCT t2.TagName AS Other FROM Tags AS t INNER JOIN PostTags AS pt ON t.Id = pt.TagId INNER JOIN PostTags AS pt2 ON pt.PostId = pt2.PostId INNER JOIN Tags AS t2 ON pt2.TagId = t2.Id WHERE t.TagName = 'MySQL'