Probleme pour fusionner des tables.

Version imprimable

Bonjour,
je suis debutant en SQL et je cherche a fusioner des tables.
donner d'entrée:

Code:

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+----------------------------+
| Tables_in_schema_en_etoile |
+----------------------------+
| f                          |
| f1                         |
| f2                         |
| g                          |
| g1                         |
| g2                         |
| h                          |
| h1                         |
| h2                         |
| q                          |
+----------------------------+
10 rows in set (0.00 sec)
 
mysql> select * from h;
+-------+---------+
| O     | Product |
+-------+---------+
| test5 | test6   |
+-------+---------+
1 row in set (0.00 sec)
 
mysql> select * from g;
+-------+-------+
| O     | Store |
+-------+-------+
| test3 | test4 |
+-------+-------+
1 row in set (0.00 sec)
 
mysql> select * from f;
+--------+--------+
| O      | Date   |
+--------+--------+
| test1  | test2  |
| test44 | test45 |
+--------+--------+
2 rows in set (0.00 sec)
 
mysql> select * from q;
+-------+-------+
| O     | Qty   |
+-------+-------+
| test7 | test8 |
+-------+-------+

et je cherche a obtenir le resultat suivant:

Code:

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+-------+---------+-------+--------+-------+
| O     | Product | Store | Date   | Qty   |
+-------+---------+-------+--------+-------+
| test5 | test6   |  NULL | NULL   | NULL  |     
+-------+---------+-------+--------+-------+
| test3 |  NULL   | test4 | NULL   | NULL  |  
+-------+---------+-------+--------+-------+
| test1 |  NULL   | NULL  | test2  | NULL  |
+-------+---------+-------+--------+-------+
|test44 |  NULL   | NULL  | test45 | NULL  | 
+-------+---------+-------+--------+-------+
| test7 |  NULL   | NULL  | NULL   | test8 |
+-------+---------+-------+--------+-------+

Pouvez vous m'aidez PLZ ou m'indiquer la solution?

merci d'avance.

Je te propose de commencer par créer une table recensant les "O" :

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CREATE TABLE ListeO AS
SELECT O FROM f 
UNION SELECT O FROM f1 
UNION SELECT O FROM f2 
UNION SELECT O FROM g 
UNION SELECT O FROM g1 
UNION SELECT O FROM g2 
UNION SELECT O FROM h 
UNION SELECT O FROM h1 
UNION SELECT O FROM h2 
UNION SELECT O FROM q ;

Maintenant, tu peux récupérer tes diverses infos :

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SELECT O, h.Product, g.Store, f.Date, q.Qty
FROM ListeO AS L
  LEFT JOIN h ON L.O = h.O
  LEFT JOIN g ON L.O = g.O
  LEFT JOIN f ON L.O = f.O
  LEFT JOIN q ON L.O = q.O

08/02/2010, 11h29
makechaos

j'ai essayé ta proposition il me dit que la colone 0 est ambigue.

Code:

ERROR 1052 (23000): Column 'O' in field list is ambiguous

je comprend pas pourquoi.

merci.

j'ai resolu le probleme avec la requete:

Code:

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SELECT L.O, h.Product, g.Store, f.Date, q.Qty
FROM ListeO AS L
 LEFT JOIN h ON L.O = h.O
 LEFT JOIN g ON L.O = g.O
 LEFT JOIN f ON L.O = f.O
 LEFT JOIN q ON L.O = q.O

merci pour l'aide