Hello.
Using the following sql:
sqlite> .dump
PRAGMA foreign_keys=OFF;
BEGIN TRANSACTION;
CREATE TABLE cndscumplidas
(
explot text,
entfap text,
coddto text,
CODCMP text,
trnid integer,
tipo integer, -- el tipo de condicion. 1- prd, 2- fam, 3 - sec, 4 - pay, 5
- mfd, 6 - combo, 7 - dto aggr
codprd text, -- != NULL si tipo es 1
codfam text, -- != NULL si tipo es 2
codsec text,
cardmean int,
cardtype int,
codagg text,
codcnd text,
invcnd text,
constraint cndscumplidas_fk foreign key (trnid) references trns(trnid) on
delete cascade
);
INSERT INTO cndscumplidas
VALUES('111111','EEEEE','123456','1',1,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'1',NULL);
INSERT INTO cndscumplidas
VALUES('111111','EEEEE','123456','2',1,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'1',NULL);
CREATE TABLE cndsinhibir
(
explot text,
entfap text,
coddto text,
CODCMP text,
trnid integer,
codcnd text,
constraint cndsinhibir_fk foreign key (trnid) references trns(trnid) on
delete cascade
);
INSERT INTO cndsinhibir VALUES('111111','EEEEE','123456','3',1,'1');
INSERT INTO cndsinhibir VALUES('111111','EEEEE','123456','4',1,'1');
CREATE TABLE dtocom (
EXPLOT varchar(6),
ENTFAP varchar(5),
CODDTO varchar(6),
CODCND int,
TIPCMP int,
CODCMP int,
TSLAST date,
TSLAST_T varchar(8),
TSCREA date,
TSCREA_T varchar(8),
CONSTRAINT dtocom_pk PRIMARY KEY (EXPLOT, ENTFAP, CODDTO,CODCND, TIPCMP,
CODCMP)
);
INSERT INTO dtocom VALUES('111111','EEEEE','123456',1,1,1,NULL,NULL,NULL,NULL);
INSERT INTO dtocom VALUES('111111','EEEEE','123456',1,1,2,NULL,NULL,NULL,NULL);
INSERT INTO dtocom VALUES('111111','EEEEE','123456',1,1,3,NULL,NULL,NULL,NULL);
INSERT INTO dtocom VALUES('111111','EEEEE','123456',1,1,4,NULL,NULL,NULL,NULL);
CREATE TABLE trns ( trnid int primary key);
INSERT INTO trns VALUES(1);
COMMIT;
I'm running the follwing selects:
First (no data returns):
select explot, entfap, coddto, codcnd, count(coddto)
from
(
select explot, entfap, coddto, codcnd, codcmp from cndscumplidas where trnid =
1
union all
select explot, entfap, coddto, codcnd, codcmp from cndsinhibir where trnid = 1
)
group by explot, entfap, coddto, codcnd
intersect
select explot, entfap, coddto, codcnd, count(coddto) from dtocom group by
explot, entfap, coddto, codcnd;
Second (with registers):
select * from
(
select explot, entfap, coddto, codcnd, count(coddto) from dtocom group by
explot, entfap, coddto, codcnd
) a natural join (
select explot, entfap, coddto, codcnd, count(coddto)
from
(
select explot, entfap, coddto, codcnd, codcmp from cndscumplidas where trnid =
1
union all
select explot, entfap, coddto, codcnd, codcmp from cndsinhibir where trnid = 1
)
group by explot, entfap, coddto, codcnd) b;
explot entfap coddto codcnd count(coddto)
---------- ---------- ---------- ---------- -------------
111111 EEEEE 123456 1 4
The result is not the same. I think that the queries are equivalent. is it?
Thanks in advance and sorry for inconveniences.
Best Regards.
Isaac Cobo.
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