Solved

The opposite of the IN operator?

Posted on 2006-06-29
5
435 Views
Last Modified: 2012-08-13
Hi - instead of using an IN operator, that gets values that are in both fields specified  (adds them), what operator do you use to get values that are only in both fields specified (subtracts them)?

For ex, imagine this table:

name        type
-------       ------
ford           van
toyota        van
toyota        car
toyota        SUV
toyota        truck

I want to do a sql query that gives me what is common between a "ford" and a "toyota" -- which should result in the correct answer, "van". This would all be in one table.

Thank you!
0
Comment
Question by:jeremyduj
[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
5 Comments
 
LVL 5

Accepted Solution

by:
MageDribble earned 125 total points
ID: 17013197
Could you have multiple instances of one record?  Or is each line unique?

ex/

Ford    van
Toyota van
Ford   van


If each line is unique try:

SELECT type
FROM table
GROUP BY type
HAVING COUNT(*) > 1
0
 
LVL 12

Expert Comment

by:Einstine98
ID: 17013309
You can also do

SELECT T1.[NAME], T1.TYPE
FROM TAble AS T1
JOIN TABLE AS T2
ON T1.Type = T2.Type
AND T1.Name <> T2.Name

if you write an exact example of what you are trying to return that would be better... thanks
0
 
LVL 25

Expert Comment

by:dstanley9
ID: 17013411
select distinct type from table
WHERE type IN
(SELECT type from table WHERE name = 'ford')
AND type IN
(SELECT type from table WHERE name = 'toyota')

OR

SELECT a.type from table a
INNER JOIN (SELECT type from table WHERE name='toyota') B
ON a.type = b.type
WHERE a.name = 'ford'
0
 
LVL 12

Expert Comment

by:Einstine98
ID: 17013458
IN queries will perform slowly on large tables.... also sub queries should be avoided if possible...
0
 
LVL 28

Expert Comment

by:imran_fast
ID: 17025679
/*This will give you All the Vendors having Common type */

select * from YourTable A where exists

(Select count(B.Type) from YourTable B where A.Name = B.Name group by B.Type Having Count(B.Type) > 1)
0

Featured Post

Ransomware-A Revenue Bonanza for Service Providers

Ransomware – malware that gets on your customers’ computers, encrypts their data, and extorts a hefty ransom for the decryption keys – is a surging new threat.  The purpose of this eBook is to educate the reader about ransomware attacks.

Question has a verified solution.

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

Suggested Solutions

Slowly Changing Dimension Transformation component in data task flow is very useful for us to manage and control how data changes in SSIS.
I have a large data set and a SSIS package. How can I load this file in multi threading?
Via a live example, show how to extract information from SQL Server on Database, Connection and Server properties
Using examples as well as descriptions, and references to Books Online, show the documentation available for datatypes, explain the available data types and show how data can be passed into and out of variables.

749 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