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Mysql count occurrence by group

Tags:

sql

select

mysql

Hi i have following table on mysql DB.

╔═══════════╦═════════╦════════╦════════════════╗
║ REVIEW_ID ║ USER_ID ║ STATUS ║   DATE_ADDED   ║
╠═══════════╬═════════╬════════╬════════════════╣
║       218 ║       2 ║ cool   ║ 20130121134811 ║
║       218 ║       2 ║ cool   ║ 20130121134812 ║
║       218 ║       2 ║ lame   ║ 20130121134813 ║
║       218 ║       2 ║ funny  ║ 20130121134814 ║
║       218 ║       2 ║ funny  ║ 20130121134815 ║
║       218 ║       2 ║ funny  ║ 20130121134816 ║
║       218 ║       2 ║ lame   ║ 20130121134817 ║
╚═══════════╩═════════╩════════╩════════════════╝

how can i get a result where when i do query based on user_id i need to get result of total status for each type:

╔════════╦════════════╗
║ STATUS ║ TOTALCOUNT ║
╠════════╬════════════╣
║ cool   ║          2 ║
║ funny  ║          3 ║
║ lame   ║          2 ║
╚════════╩════════════╝

Thanks

like image 569
Saraswathi Apavoo Avatar asked Jan 23 '13 09:01

Saraswathi Apavoo


1 Answers

Use COUNT() which is an aggregate function, and group them according to their status

SELECT  status, COUNT(*) totalCount
FROM    tableName
GROUP   BY status
  • SQLFiddle Demo

OTHER(s)

  • MySQL GROUP BY with some Aggregate Functions List
like image 102
John Woo Avatar answered Sep 21 '22 02:09

John Woo