Solved

Select where table1 not in table2

Posted on 2006-07-20
3
759 Views
Last Modified: 2012-05-05
I have 2 tables.

Table1 is made of 2 primary keys, table_id and job_id along with a bunch of other values (lets just use job_name for now).
Table2 is made of 2 primary keys, table_id and job_id along with a bunch of other values (Don't care what for this example).

I need to select the job_name from table1 where that entries table_id and job_id are not in table2.

How can I do this?  I was using an outter join when I wanted table 2 with table 1 but now that I only want table1 when there is no matchig entry in table 2!!

Thanks!
0
Comment
Question by:JRamos1200
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 25

Accepted Solution

by:
Mr_Peerapol earned 125 total points
ID: 17147254
SELECT t1.*
FROM Table1 t1
WHERE NOT EXISTS (SELECT 1 FROM Table2 t2 WHERE t1.table_id = t2.table_id AND t1.job_id = t2._jobid)
0
 

Author Comment

by:JRamos1200
ID: 17147495
That did it!  Thanks.  What does select 1 mean anyway?
0
 
LVL 25

Expert Comment

by:Mr_Peerapol
ID: 17147523
Just the constant number 1. In the EXISTS clause the list of fields returned by inner SELECT doesn't matter because EXISTS() just checks whether there is a record returned by the SELECT statement no matter what columns included.
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Copy data to New Year 9 33
Star schema daily updates 2 37
help converting varchar to date 14 25
SQL Query Returns Records in SSMS but not Classic ASP 5 25
Having an SQL database can be a big investment for a small company. Hardware, setup and of course, the price of software all add up to a big bill that some companies may not be able to absorb.  Luckily, there is a free version SQL Express, but does …
Load balancing is the method of dividing the total amount of work performed by one computer between two or more computers. Its aim is to get more work done in the same amount of time, ensuring that all the users get served faster.
Via a live example, show how to setup several different housekeeping processes for a SQL Server.
Viewers will learn how the fundamental information of how to create a table.

733 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question