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IDS Forum

How to avoid Multiple rows in a SP?

Posted By: PERE CASTANYER
Date: Saturday, 22 May 2010, at 11:45 a.m.

Hello all. I'm new to informix and I'm testing the SP routines.

how can achieve to bypass the "A subquery has returned not exactly one row." message when I'm building the SP:

------------------SP----------Code
CREATE PROCEDURE Phtotgraph_Summary_SP(photograph_classification LIKE fotografs.classificacio_fotograf)
RETURNING CHAR(100) as Photograph, INTEGER as total_Expositions, CHAR(50) as record_Exposition, INTEGER as num_photos

DEFINE photographCode varchar(8);
DEFINE photographName varchar(100);
DEFINE totalExpositions int;
DEFINE averagePhotos decimal(5,2);
DEFINE recordExposition varchar(50);
DEFINE numPhotos int;

FOREACH cursor

FOR SELECT ph.passaport,ph.nom, count(distinct ex.codi_exposicio) INTO photographCode,photographName, totalExpositions

FROM fotografs ph, exposen ex

where ph.passaport = ex.passaport

group by ph.passaport, ph.nom

Select max(ex.num_fotos) INTO numPhotos from exposen ex, Exposicions exp , fotografs ph

where ex.codi_exposicio = exp.codi_exposicio and ph.passaport = ex.passaport and ph.passaport = photographCode;

select exp.titol INTO recordExposition from exposen ex, Exposicions exp , fotografs ph

where ex.codi_exposicio = exp.codi_exposicio and ph.passaport = ex.passaport and ph.passaport = photographCode

group by exp.titol

having max(ex.num_fotos)= numPhotos;

RETURN photographName, totalExpositions,recordExposition,numPhotos WITH RESUME;

END FOREACH;
END PROCEDURE;

---End SP Code--------------

With tables:

Exposen:

passaport codi_exposicio num_fotos descompte
11111111 1 4 0
11111111 2 10 5
11111111 3 4 11
11111111 4 20 10
11111111 8 15 20
22222222 1 1 5
22222222 3 2 0
22222222 4 3 4
22222222 5 1 0
33333333 1 10 20
33333333 2 15 15
33333333 3 30 50
33333333 4 30 80
33333333 5 20 10
33333333 6 30 40
33333333 7 10 30
44444444 1 12 10
66666666 1 101 2

Exposicions:

codi_exposicio titol preu data_inici data_final
1 Exposici√ Fira Barcelona 20,1 oct 01, 2009 oct 15, 2009
2 Exposici√ Fira Berl√Œn 40,49 oct 10, 2009 oct 20, 2009
3 Exposici√ Fira Londres 70,2 nov 03, 2009 nov 23, 2009
4 Exposici√ Internacional Par√Œs 30,1 dic 01, 2009 dic 15, 2009
5 Exposici√ Europea Roma 15,99 dic 16, 2009 dic 20, 2009
6 Exposici√ Itinerant Budapest 12,39 ene 03, 2010 ene 15, 2010
7 Exposici√ Nous valors 9,43 dic 15, 2009 dic 19, 2009
8 Exposici√ Realisme fotogr‚€°fic 25,4 feb 15, 2009 feb 24, 2009

fotografs:

passaport nom adreca telefon pais classificacio_fotograf
11111111 Pere Garcia Garcia Balmes, barcelona 931111111 Spain Ocasional
22222222 John Smith 42th New York 93222222 EEUU Ocasional
33333333 Joao Belfor Grandao, Lisboa 93333333 Portugal Ocasional
44444444 Fran√Āois Lucart Rue LAville, PAris 9344444 France Ocasional
55555555 Juan Mendez grande, Buenos Aires 9355555 Argentina Ocasional
66666666 Ferran Domenech Rosell√›, Barcelona 936666 Spain Ocasional
77777777 Beltran Rodriguez Gran via, Madrid 937777777 Spain Ocasional
88888888 Roberto Libiano vitali, Roma 9388888 Italy Ocasional
99999999 Johann Lieberung franciscaner, Berlin 93999999 Germany Ocasional
00000000 Jos√ˆ Argoitxo Grande, Bilbao 9300000 Spain Ocasional
00000001 Boris Valkinov Moscň™ 93575185 Russia Ocasional
12894578 Joao Sousa Rua Algarve, 12 111111 Portugal Ocasional
59258743 Kenny Rogers 64, Smith St. 222222 Estados Unidos Ocasional
09884323 Alain Poulet Rue Guerlain, 34 333333 Canad· Ocasional
23663233 Henrich Schoffer Bonn Strasse 23 444444 Alemania Ocasional
56898743 Jaume Busquets Consell de Cent, 2 555555 Espa√’a Ocasional

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