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Asked: 2026-06-15T14:53:55+00:00

I have a mysql table tbl_exam user_ID | User_name | semester | math |

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I have a mysql table tbl_exam

user_ID | User_name | semester | math | english |
1       | John      | 1st      | 67   |  73     |
1       | John      | 2nd      | 82   |  59     |

after this, i want to compare 1st semester marks with 2nd semester.i.e Math is improving and English is degrading

user_ID | User_name | math  | english  |
1       | John      | good  | bad      |

I just fetch the result but have no idea how to solve.Any help would be appreciated

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1 Answer

  1. Editorial Team

    Try this: 

    SELECT A.user_id, A.user_name, IF((B.math - A.math) > 0, 'good', 'bad') math, 
         IF((B.english - A.english) > 0, 'good', 'bad') english
FROM (SELECT user_id, user_name, math, english 
FROM tbl_exam WHERE semester = '1st') AS A 
INNER JOIN 
(SELECT user_id, user_name, math, english 
FROM tbl_exam WHERE semester = '2nd') AS B ON A.user_id = B.user_id
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