Simple (I'm sure) SELECT FROM question - PIVOT
HelloI have 2 paintings where one contains the IDS and TITLES of BOOKS and other information on the DVD that contains the images that we scan from the book. We have 2 types of DVD: 1 (Type C) containing images of high quality and the other (Type D), web quality images.
So I do not know how to make my query to display the following result
TABLE PUBLICATION
ID | TITLE
-----------------------------
1 | LIFE Magazine
2 | EARTH
3 | The Economist
4 | TIMES
5 | ANIMALS
TABLE SERIEDVD
ID | ID.TITLE | TYPE | DVD1(the first DVD of the serie) | DVD2 (the last DVD of the serie)
------------------------------------------------------------------------------------------------------------------------------------------------
1 | 1 | C | 182 | 216
2 | 1 | D | 678 | 679
3 | 2 | C | 1121 | 1245
4 | 2 | D | 700 | 703
5 | 3 | C | 576 | 613
6 | 3 | D | 236 | 256
WANTED RESULT (on one row. If I do a query, I have the result on 2 rows)
TITLE | TYPE C First DVD | TYPE C Last DVD | TYPE D - First DVD | TYPE D Last DVD
LIFE Magazine | 182 | 216 | 678 | 679
If I do
Select P.TITLE, S.TYPE, S.DVD1, S.DVD2 FROM PUBLICATIONS P, SERIEDVD S where P.ID = S.ID.TITLE AND TITLE = 'Life Magazine'
I have this result:
TITLE | TYPE | First DVD | Last DVD |
LIFE Magazine | C | 182 | 216 |
LIFE Magazine | D | 678 | 679 |
Thanks,
Roseline
Published by: Roseline September 30. 2009 04:43
Hi, Roseline,.
You need to Rotate your result of 2 rows on 1 row:
Select P.TITLE
, MIN (CASE WHEN s.type = 'C' THEN s.dvd1 END) AS c_first
, MIN (CASE WHEN s.type = 'C' THEN s.dvd2 END) AS c_last
, MIN (CASE WHEN s.type = 'D' THEN s.dvd1 END) AS d_first
, MIN (CASE WHEN s.type = 'D' THEN s.dvd2 END) AS d_last
FROM PUBLICATIONS P
, SERIEDVD S
where P.ID = S.ID.TITLE
AND TITLE = 'Life Magazine'
GROUP BY p.title;
Since there is only a value of s.dvd1 or s.dvd2 in each column, it does not matter if we use MIN or MAX.
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