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Subqueries

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doobybug
Starting Member

4 Posts

Posted - 2009-02-23 : 02:37:21

Hi all,

I am a very new student to this stuff, and I need some help while I was experimenting. I have 2 tables called:
tblDistributor
- DNO (PK)
- name
- telno

and

tblDistributor_Model
-DNO(FK)
-MNO(FK)

I have to find all the distributors who currently distribute our currently distributed products by name. I have written something like this which returns the distributor id and the amount of models that he distributes. How can I get the name as well?

SELECT count(*) AS Total_Models
FROM tblDistributor_Model dm, tblDistributor d
GROUP BY dm.DNO
HAVING COUNT (*) = (SELECT DISTINCT COUNT(*)
FROM tblDistributor)

karthik_padbanaban
Constraint Violating Yak Guru

263 Posts

Posted - 2009-02-23 : 02:52:23

--select sum(p),a from @UNIT group by a
declare @tblDistributor table (DNO int,name varchar(100))
insert into @tblDistributor values(1,'a')
insert into @tblDistributor values(2,'b')

SOME THING LIKE THIS.

declare @tblDistributor_Model table (DNO int,MNO int)
insert into @tblDistributor_Model VALUES (1,1)
insert into @tblDistributor_Model VALUES (1,2)
insert into @tblDistributor_Model VALUES (1,3)
insert into @tblDistributor_Model VALUES (2,1)
insert into @tblDistributor_Model VALUES (2,2)

SELECT count(*) AS Total_Models,D.NAME FROM @tblDistributor_Model dm JOIN @tblDistributor d
ON DM.DNO = D.DNO
GROUP BY dm.DNO,D.NAME

Karthik

doobybug
Starting Member

4 Posts

Posted - 2009-02-23 : 03:18:38

Thanks a lot!!! Worked perfectly! :)

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