you have to decide which table is the 'master'
I'll assume its table1

SELECT T1.Price, T1.Qty, T2.CPrice, T3.Pricex
FROM Table1 T1 left outer join Table2 T2 on T1.id = T2.Article
left outer join Table3 T3 on T3.Article = T2.Article
WHERE T2.Article = :ARTICLE

this should give you

T1.Price, T1.Qty, T2.CPrice, T3.Pricex
1 2 3 4 - record all present
1 2 3 null - no matching record in table3
1 2 null null - no matching record in table2 or
table3

--
Nick
-----We Solve your Computer Problems---
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-----Original Message-----
From: firebird-support@yahoogroups.com
[mailto:firebird-support@yahoogroups.com] On Behalf Of majstoru
Sent: 22 February 2006 22:14
To: firebird-support@yahoogroups.com
Subject: [firebird-support] SELECT statement with some null in result


Hi,

I have a SQL statement on 3 tables! When one of table in this
statement have no record (return) null, I get a result of SQL
statement all fields null!!! How to set SQL to get fields which is not
null?

Here is the statent:

SELECT T1.Price, T1.Qty, T2.CPrice, T3.Pricex
FROM Table1 T1, Table2 T2, Table3 T3
WHERE T1.id = T2.Article AND T3.Article = T2.Article AND T2.Article =
:ARTICLE

Thanks





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