แท็ก StackOverflow ที่ได้รับความนิยมสูงสุดในเดือนมีนาคม 2558 ไม่จำเป็นต้องใช้ตารางทั้งหมด
Most popular StackOverflow tags in March 2015.It is not neccessary to use all the tables.
 CloseAsOffTopicReasonTypes:  Id [ number]  IsUniversal [ boolean]  InputTitle [ text]  MarkdownInputGuidance [ text]  MarkdownPostOwnerGuidance [ text]  MarkdownPrivilegedUserGuidance [ text]  MarkdownConcensusDescription [ text]  CreationDate [ time]  CreationModeratorId [ number]  ApprovalDate [ time]  ApprovalModeratorId [ number]  DeactivationDate [ time]  DeactivationModeratorId [ number] 
SELECT num.TagName AS Tag, ROW_NUMBER() OVER (ORDER BY rate.Rate DESC) AS MarchRank, ROW_NUMBER() OVER (ORDER BY num.Num DESC) AS TotalRank, rate.Rate AS QuestionsInMay, num.Num AS QuestionsTotal FROM (SELECT COUNT(PostId) AS Rate, TagName FROM Tags, PostTags, Posts WHERE Tags.Id = PostTags.TagId AND Posts.Id = PostId AND Posts.CreationDate < '2015-05-01' AND Posts.CreationDate > '2015-04-01' GROUP BY TagName) AS rate INNER JOIN (SELECT COUNT(PostId) AS Num, TagName FROM Tags, PostTags, Posts WHERE Tags.Id = PostTags.TagId AND Posts.Id = PostId GROUP BY TagName HAVING COUNT(PostId) > 800) AS num ON rate.TagName = num.TagName ORDER BY rate.rate DESC