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Update one field with more fields from another table

Update one field with more fields from another table

2004-03-13       - By Wouter Coppieters

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Dear mysql user

I found this example in the doc of mysql. I have a similar problem. Is
there any solution to this?

Thanks


Update one field with more fields from another table

Table A
+-- -----+-- ---- ---+
| A-num | text |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
+-- -----+-- ---- ---+

Table B:
+-- ---+-- ---+-- ---- ------+
| B-num| date | A-num |
| 22 | 01.08.2003 | 2 |
| 23 | 02.08.2003 | 2 |
| 24 | 03.08.2003 | 1 |
| 25 | 04.08.2003 | 4 |
| 26 | 05.03.2003 | 4 |


I will update field text in table A
with
UPDATE `Table A`,`Table B`
SET `Table A`.`text`=concat_ws( ' ',`Table A`.`text`,`Table B`.`B-num`, " from
",`Table B`.`date`, '/ ')
WHERE `Table A`.`A-num` = `Table B`.`A-num`

and come to this result
Table A
+-- -----+-- ---- ---- ---- ------+
| A-num | text |
| 1 | 24 from 03 08 2003 / |
| 2 | 22 from 01 08 2003 / |
| 3 | |
| 4 | 25 from 04 08 2003 / |
| 5 | |
-- -----+-- ---- ---- ---- ---- --+
(only one field from Table B is accepted)

But i will come to this result
Table A
+-- -----+-- ---- ---- ---- ---- ---- ---- ---- ------+
| A-num | text |
| 1 | 24 from 03 08 2003 |
| 2 | 22 from 01 08 2003 / 23 from 02 08 2003 / |
| 3 | |
| 4 | 25 from 04 08 2003 / 26 from 05 03 2003 / |
| 5 | |
+-- -----+-- ---- ---- ---- ---- ---- ---- ---- ------+

Department of Genetics
Faculty of Veterinary Medicine
University of Liege
Bd de Colonster B43
B4000 Liege, Belgium
32-43-66.41.59


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