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Find highest value in row and echo number and column name

开发者 https://www.devze.com 2023-03-15 01:47 出处:网络
After too many hours I can\'t find the 开发者_开发百科answer to this. First my table id | one | two | three | four | five | galname

After too many hours I can't find the 开发者_开发百科answer to this.

First my table

  id | one | two | three | four | five | galname
-------------------------------------------------
  1  |  2  |  5  |   23  |  4   | 5    |  Bob

How do I find the highest value in the row and show colomun name.

three - 23


 select  id,  GREATEST(one, two, three, four, five) value,
        case GREATEST(one, two, three, four, five)
         when one then 'one'
         when two then 'two'
         when three then 'three'
         when four then 'four'
         when five then 'five' end column_name
 from your_table        


I think you should do:

SELECT CASE GREATEST(`id`,`one`, `two`, `three`, `four`, `five`)
         WHEN `id` THEN `id`
         WHEN `one` THEN `one`
         WHEN `two` THEN `two`
         WHEN `three` THEN `three`
         WHEN `four` THEN `four`
         WHEN `five` THEN `five`
         ELSE 0
      END AS maxcol,
      GREATEST(`id`,`one`, `two`, `three`, `four`, `five`) as maxvalue 
    FROM tbl

this is just if you don't want to look here: MySQL greatest value in row? (i adapted the answer FROM THAT POST to fit your needs if you have problems, anyway refer to that post)

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