question 3 - Mailing list pgsql-general

From ZioBudda
Subject question 3
Date
Msg-id Pine.LNX.4.03.9812041905520.456-100000@michel.enter.it
Whole thread Raw
List pgsql-general
Hi again,
I have this 3 tables:
esame=> select * from prestito\g
id_libro|id_utente|data_prestito|visto|notifica1|notifica2|notifica3
--------+---------+-------------+-----+---------+---------+---------
      11|       37|   12-04-1998|f    |         |         |
(1 row)

esame=> select * from utente\g
cognome |nome    |id_utente|indirizzo       |
telefono|tipo_utente|info_utente       |l
ibri_presi| notifica1| notifica2| notifica3|password|email
--------+--------+---------+----------------+------------+-----------+------------------+-
----------+----------+----------+----------+--------+--------------
Ballabio|Dario   |       37|Via carducci 125|  02-2422700|
1|Ditta Enter S.r.L.|
          |          |          |          |dario   |dario@pinco.it

esame=> select * from libro\g
titolo      |id_libro|id_utente|collocazione|casa_edit|
data_publ|tipo|difetto|id_libro_ke
y
------------+--------+---------+------------+---------+----------+----+-------+-----------
-
Il talismano|s1      |        0|d1          |aop2     |05-12-1985|   1|
|          1
2
It          |d1      |       37|d1          |apo      |05-12-1940|   1|
|          1
1

I need a query that for each id_utente return me the numeber of items in
"prestito" and th
is number is group by libro.tipo



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