Solved

The opposite of the IN operator?

Posted on 2006-06-29
5
428 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
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

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Why is this different from all of the other step by step guides?  Because I make a living as a DBA and not as a writer and I lived through this experience. Defining the name: When I talk to people they say different names on this subject stuff l…
Ever needed a SQL 2008 Database replicated/mirrored/log shipped on another server but you can't take the downtime inflicted by initial snapshot or disconnect while T-logs are restored or mirror applied? You can use SQL Server Initialize from Backup…
Viewers will learn how to use the SELECT statement in SQL and will be exposed to the many uses the SELECT statement has.
Viewers will learn how to use the UPDATE and DELETE statements to change or remove existing data from their tables. Make a table: Update a specific column given a specific row using the UPDATE statement: Remove a set of values using the DELETE s…

895 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

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now