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MySQL transform pivot query

Posted on 2008-10-15
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Last Modified: 2012-05-05
This is my table...
INTERVENTION      |  Proj      | Proj2            | Proj 3|
200             |  2      | NULL       | NULL  |
200             |  NULL      | 3       | NULL  |
200             |  NULL      | NULL       | 4         |
203             |  5      | NULL       | NULL  |
203             |  NULL      | 9       | NULL  |
203             |  NULL      | NULL       | 2          |

What query do run to get this?

INTERVENTION      |Proj      | Proj2 |           Proj 3          |
200            |2      | 3      | 4      |
203            |5      | 9      | 2      |
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Question by:hbojorquezgeek
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Tony McCreath earned 500 total points
ID: 22729999
Looks like

select INTERVENTION, sum(Proj), sum(Proj2), sum(Proj3) from myTable  group by INTERVENTION;
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