求Query
有这样一张表
create table DBTest (OID int,Oname nvarchar(100),PID int,Com nvarchar(100))
insert into DBTest values ('12345','ABC','364','CZZXXCC')
insert into DBTest values ('12346','ABC','364','EZZXXEE')
insert into DBTest values ('12350','DFGFG','362','CCZZXXDD')
insert into DBTest values ('12351','DFGFG','365','EEZZXXFF')
insert into DBTest values ('12355','XXCVD','362','WWZZXXD')
insert into DBTest values ('12356','XXCVD','364','GGZZXXV')
SELECT a.* FROM dbtest a INNER JOIN dbtest b ON a.oname=b.oname
WHERE a.pid<>b.pid
/*
OID Oname PID Com
----------- ---------------------------------------------------------------- ----------- ----------------------------------------------------------------
12351 DFGFG 365 EEZZXXFF
12350 DFGFG 362 CCZZXXDD
12356 XXCVD 364 GGZZXXV
12355 XXCVD 362 WWZZXXD
(4 行受影响)
*/
