Exécuter une requête SQL comportant une relation (JOIN)

Produit : 4D ODBC Driver 2004  ·  Plateforme : Mac & Win ♪

En essayant d'exécuter la requête suivante via le driver ODBC, pour lire le contenu des tables 4D vers MS Query, une erreur de syntaxe est retournée.

SELECT titles.title_id, titles.title, sales.qty, sales.price
FROM titles 
RIGHT OUTER JOIN sales
ON titles.title_id=sales.title_id

En fait, les commandes "RIGHT OUTER JOIN " et "LEFT OUTER JOIN" sont des commandes ANSI.

Voir la documentation suivante (dont suit un extrait):
http://www4.dogus.edu.tr/bim/bil_kay/dbase/mssql65/ch11.htm#Heading12
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Outer Joins

You can restrict rows from one table while allowing all rows from another table as your result set by using outer joins. One of the most common uses for this type of join is to search for orphan records. You can create an outer join statement using either SQL Server or ANSI syntax. The outer join operators and keywords are as follows:

SQL Server syntax:
   >*= Includes all rows from the first table and only the matching rows in the second table (left outer join).
   >=* Includes all rows from the second table and only the matching rows in the first table (right outer join).

ANSI syntax:
   LEFT OUTER JOIN Includes all rows from the first table and only the matching rows in the second table.
   RIGHT OUTER JOIN Includes all rows from the second table and only the matching rows in the first table.
   FULL OUTER JOIN Includes all non-matching rows from both tables.
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Donc, la syntaxe SQL doit être :

Pour un RIGHT OUTER JOIN

SELECT titles.Title_id, titles.Title, sales.qty, sales.Price 
FROM sales, titles 
WHERE titles.Title_id =* sales.Title_id

Pour un LEFT OUTER JOIN

SELECT titles.Title_id, titles.Title, sales.qty, sales.Price
FROM sales, titles
WHERE titles.Title_id *= sales.Title_id