Merging two separate Tables into One - different number of rows

Question

Hi. I have a problem. Oracle 10.2.0.4.0
7 years ago when i was learning how to query my teacher told me that is possible to creata some kind of report where results could be combined in 1 view(report) witch in different variable could have different number of rows.
I just remember that there is needed to use group by function and some join?
Please help
In link there is a sample sample view
I need to combine Table A using D variable with Table B to become Wynik(result)
Tables create
CREATE TABLE "TABELA_A" ( A NUMBER,B NUMBER,C NUMBER,D NUMBER ) ;
INSERT INTO "TABELA_A" (A, B, C, D) VALUES (123, 1, 70, 999)
INSERT INTO "TABELA_A" (A, B, C, D) VALUES (123, 2, 80, 999)
INSERT INTO "TABELA_A" (A, B, C, D) VALUES (234, 1, 100, 111)
INSERT INTO "TABELA_A" (A, B, C, D) VALUES (456, 1, 10, 222)
CREATE TABLE "TABELA_B" ( D NUMBER,E VARCHAR2(255),F NUMBER ) ;
INSERT INTO "TABELA_B" (D, E, F) VALUES (999, 'A', 1);
INSERT INTO "TABELA_B" (D, E, F) VALUES (999, 'B', 1);
INSERT INTO "TABELA_B" (D, E, F) VALUES (999, 'B', 3);
INSERT INTO "TABELA_B" (D, E, F) VALUES (999, 'C', 1);
INSERT INTO "TABELA_B" (D, E, F) VALUES (111, 'A', 1);
INSERT INTO "TABELA_B" (D, E, F) VALUES (111, 'C', 2);
And to become result - in picture
[http://i303.photobucket.com/albums/nn153/katanbutcher/pytanko.jpg?t=1306152636]
Thank's for help
Edited by: 860710 on 2011-05-23 05:42
Edited by: 860710 on 2011-05-23 05:54
Edited by: 860710 on 2011-05-23 06:07

Answer 1

Maybe if you follow the instructions mention in this post you may get some help. For example, I wouldn't try to click on the link provided by you.
SQL and PL/SQL FAQ
Regards
Raj