sql - Mailing list pgsql-sql

From cristi
Subject sql
Date
Msg-id 008501c29f6f$74aee380$7201a8c0@aaa
Whole thread Raw
Responses Re: sql
List pgsql-sql
I have 3 tables.
 
table_a
marca
15145
1455
1333
 
table_b
data
11-01-2002
11-02-2002
 
table_c
marca    data
15145    11-01-2002
15145    11-02-2002
1455      11-01-2002
1333      11-01-2002
1333      11-02-2002
 
After interogation of the tables I need this kind of result:
 
marca    data
1455     11-02-2002
 
(I want to receive the records which are a combitation of fields of table_a and table_b and that are not in the table_c)
 
How can I do that?
 
Thanks!

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