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cahyadsn on 07/25/12

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Last Edited at 07/25/12 01:43pm

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Pivot table Schedule

/ Published in: MySQL

You have a schedule table (period, day, subject, room) with a primary key period,day to avoid duplicate bookings. You wish to display the schedule as periods, subjects and rooms in rows, and days of the week in columns.

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SELECT  
  period, 
  MAX(IF(day=1, CONCAT(subject,' ',room), '')) AS Mon, 
  MAX(IF(day=2, CONCAT(subject,' ',room), '')) AS Tue, 
  MAX(IF(day=3, CONCAT(subject,' ',room), '')) AS Wed, 
  MAX(IF(day=4, CONCAT(subject,' ',room), '')) AS Thu, 
  MAX(IF(day=5, CONCAT(subject,' ',room), '')) AS Fri 
FROM schedule 
GROUP BY period