Hi,
What do you obtain with :
Select FK_partic,
Sum(IF(insumo_or = "Animal1", cantidad_or, 0) ) AS "Animal1",
Sum(IF (insumo_or = "Animal2", cantidad_or, 0) ) AS "Animal2",
Sum(IF (insumo_or = "Animal3", cantidad_or, 0) ) AS "Animal3",
Sum(IF (insumo_or = "Animal4", cantidad_or, 0) ) AS "Animal4",
Sum(IF (insumo_or = "Animal5", cantidad_or, 0) ) AS "Animal5",
Sum(IF (insumo_or = "Animal6", cantidad_or, 0) ) AS "Animal6"
FROM tbl_ISv2CROriginal
Group by FK_partic
?
Best Regards
--------------------
Mathias FATENE
Hope that helps
*This not an official mysql support answer
-----Original Message-----
From: Alvaro Cobo [mailto:coboalvaro@stripped]
Sent: mardi 26 avril 2005 04:38
To: mysql@stripped
Subject: Crosstab in Mysql
Hi guys:
I am quite new in SQL and I need to build a crosstab based in two tables
using Mysql and PHP, but it is becoming quite dificult.
I've got the next query, but it keeps giving the next error:
"#1241 - Operand should contain 1 column(s)"
/*GENERAL EXPLANATION OF THE QUERY
I work in a project to give animals to farmers: I have two tables:
tbl_ISv2CRfamilia with the families which are going to receive animals.
(PK_partic, int(11), Autonumbering ID (PK);
FK_IS; varchar(255); Foreign key which conects to the project table
nombre_partic, varchar(255), Name of the family
OB_familia, varchar(255), community of the family)
tbl_ISv2CROriginal with the animales they actually have received.
(FK_partic, int(11), Foreign key which conects to the family ID
insumo_or, varchar(255), Animal given
cantidad_or, int(11), number of animals given of this specie)
And I need to have a table like this:
Family, animal1, animal2, animal3, ..., animaln
John Smith 3 4 0 1 3 ... 0
*/
The query and subquiery is as follows.
SELECT tbl_ISv2CRfamilia.PK_partic,
tbl_ISv2CRfamilia.FK_IS,
tbl_ISv2CRfamilia.OB_familia,
(SELECT Sum(
IF (
insumo_or = "Animal1", cantidad_or, 0
) ) AS "Animal1", Sum(
IF (
insumo_or = "Animal2", cantidad_or, 0
) ) AS "Animal2", Sum(
IF (
insumo_or = "Animal3", cantidad_or, 0
) ) AS "Animal3", Sum(
IF (
insumo_or = "Animal4", cantidad_or, 0
) ) AS "Animal4", Sum(
IF (
insumo_or = "Animal5", cantidad_or, 0
) ) AS "Animal5", Sum(
IF (
insumo_or = "Animal6", cantidad_or, 0
) ) AS "Animal6"
FROM tbl_ISv2CROriginal
GROUP BY FK_partic
)
FROM tbl_ISv2CRfamilia
INNER JOIN tbl_ISv2CROriginal ON tbl_ISv2CRfamilia.PK_partic =
tbl_ISv2CROriginal.FK_partic GROUP BY FK_partic
What is wrong with that? I have tried everything, and no solution.
Thanks in advance.
Alvaro
