OraFAQ Forum: Server Administration » Only want one of the records in a query.

Home » RDBMS Server » Server Administration » Only want one of the records in a query.

Show: Today's Messages :: Polls :: Message Navigator
E-mail to friend

Only want one of the records in a query. [message #370896]

Fri, 03 March 2000 01:41

kat
Messages: 15
Registered: February 2000

Junior Member

Hi,
let me start with an example, I will write
"select address from tblCustomer where lastname='White'"
This can result in a query with more than one record.
But I only want one of them, doesnt matter which customer's address, as long as the last name of the customer is "White". Is it possible at all? Any idea? Thanks in advance.

Report message to a moderator

Re: Only want one of the records in a query. [message #370909 is a reply to message #370896]

Sun, 05 March 2000 19:59

Yasu
Messages: 2
Registered: March 2000

Junior Member

Examples are

select address from tblCustomer where lastname='White' and rownum=1
only 1 is possible

or

select address from
(
select address,rownum as NO from tblCustomer where lastname='White'
)
where NO=n[[n=1,2,...N]]

Report message to a moderator

Re: Only want one of the records in a query. [message #370910 is a reply to message #370896]

Mon, 06 March 2000 01:15

Atavur Rahaman S.A
Messages: 23
Registered: January 2000

Junior Member

Hope this will help you in all the way...

SQL> Select C.Customer_No, C.Customer_Name, C.Customer_Addr from Customer C where C.Customer_No NOT IN (Select DISTINCT B.Customer_No from Customer B where B.Customer_Address

Query to display the unique records with one address...

SQL> Select C.Customer_No, C.Customer_Name, C.Customer_Addr from Customer C where C.Customer_No NOT IN (Select DISTINCT B.Customer_No from Customer B where B.Customer_Address
Regards
Atavur

Report message to a moderator

Re: Only want one of the records in a query. [message #370917 is a reply to message #370896]

Mon, 06 March 2000 16:24

Edward Jayaraj
Messages: 7
Registered: December 1999

Junior Member

Isn't it simple and smart :

"SELECT MAX(address)
FROM TblCustomer
WHERE lastname='White'"

Let me know if there is any problem
Thanks

Report message to a moderator

Previous Topic:	Thanks for the reply, Frank Naude
Next Topic:	LEFT JOIN, RIGHT JOIN syntax in Oracle - Urgent!!!!

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Thu Apr 18 19:02:28 CDT 2024