Hello all,

I need to perform an SQL statement over 5 different tables, with complex 
request. To do so, i'm using subqueries. 

SELECT ... FROM (SELECT .....WHERE....) as T1 LEFT JOIN (SELECT 
.....WHERE....) as T2 WHERE .....

The problem is that only JOIN seems working with subqueries (LEFT JOIN 
raise an error)
Here is an example of results T1 and T2 (T1 and T2, as shown in the 
request before are result of subqueries) :

T1 :
id      col1    col2
1       a       b
2       c       d
3       e       f 

T2:
id      col3    col4
2       aa      bb
3       cc      dd
6       ee      ff

And i'd like to obtain the final resultset :
id      col1    col2    col3    col4
1       a       b       NULL    NULL
2       c       d       aa      bb
3       e       f       cc      dd
6       NULL    NULL    ee      ff

Vincent Badier

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