MS SQL Development
 
Forums: » Register « |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support | 
User Name:
Password:
Remember me
Go Back   Dev Shed Forums > Databases > MS SQL Development
Reload this Page

query help

Discuss query help in the MS SQL Development forum on Dev Shed.
query help MS SQL Development forum discussing administration, MS SQL queries, and other MS SQL-related topics. SQL Server is Microsoft's enterprise database engine.

Reply
Add This Thread To:
  Del.icio.us   Digg   Google   Spurl   Blink   Furl   Simpy   Y! MyWeb 
« Previous Thread | Next Thread »  
Thread Tools Search this Thread Rate Thread Display Modes
 
Unread Dev Shed Forums Sponsor:
  #1  
Old August 23rd, 2004, 09:13 AM
black_lotus black_lotus is offline
Contributing User
Dev Shed Newbie (0 - 499 posts)
  
Join Date: Aug 2003
Posts: 241 black_lotus User rank is Sergeant (500 - 2000 Reputation Level)black_lotus User rank is Sergeant (500 - 2000 Reputation Level)black_lotus User rank is Sergeant (500 - 2000 Reputation Level)black_lotus User rank is Sergeant (500 - 2000 Reputation Level)black_lotus User rank is Sergeant (500 - 2000 Reputation Level) 
Time spent in forums: 2 Days 12 h 11 m 42 sec
Reputation Power: 19
query help
Hi, Im trying to do a query to extract all the records from one table that are not in another table. Essentially the unique records from two tables. Not sure of the query though. Any ideas. Thanks
Reply With Quote
  #2  
Old August 23rd, 2004, 01:55 PM
PrivateJson PrivateJson is offline
Registered User
Dev Shed Newbie (0 - 499 posts)
  
Join Date: Aug 2004
Location: Denmark
Posts: 25 PrivateJson User rank is Just a Lowly Private (1 - 20 Reputation Level) 
Time spent in forums: 2 h 22 m 16 sec
Reputation Power: 0
Something like this:

SELECT * FROM Table1 WHERE MyId NOT IN (SELECT AnotherMyId FROM Table2)
Reply With Quote
  #3  
Old September 1st, 2004, 06:30 AM
ptauwhare ptauwhare is offline
Registered User
Dev Shed Newbie (0 - 499 posts)
  
Join Date: Aug 2004
Posts: 19 ptauwhare User rank is Just a Lowly Private (1 - 20 Reputation Level) 
Time spent in forums: 2 m 44 sec
Reputation Power: 0
Alternatively
select * from table1 where not exists( select 1 from table2 where table2.id = table1.id)
This is usually faster.
Reply With Quote
Reply

Viewing: Dev Shed Forums > Databases > MS SQL Development > query help

« Previous Thread | Next Thread »

Thread Tools  Search this Thread 
Search this Thread:

Advanced Search
Display Modes  Rate This Thread 
Linear Mode Linear Mode
Rate This Thread:


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
View Your Warnings | New Posts | Latest News | Latest Threads | Shoutbox
Forum Jump


Forums: » Register « |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support | 
  
 





© 2003-2008 by Developer Shed. All rights reserved. DS Cluster 6 hosted by Hostway.