Probleme pour fusionner des tables.

[makechaos]

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

 
+----------------------------+
| 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:

 
+-------+---------+-------+--------+-------+
| 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.

[Antoun]

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

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 :

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

[makechaos]

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

ERROR 1052 (23000): COLUMN 'O' IN FIELD list IS ambiguous

je comprend pas pourquoi.

merci.

[makechaos]

j'ai resolu le probleme avec la requete:

 
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