SQL - Querying the Same Table

Hi All,

 

Can someone suggest the best way to get at this data via an SQL
statement?

 

I have a table that has two specific fields in which I am interested.
One field is a plant code and the other field is an ASN field.  I want
to run an SQL statement that will show me all the ASNs that are used by
both plants.  So if the table has:

 

1, 10200

1, 10201

2, 30210

2, 23041

1, 30210

 

I would like to run a statement that will show me:

 

30210

 

This should be the only ASN to appear since it is used by both Plant One
and Plant Two.

 

Any ideas?  I'm pretty sure it's blatantly obvious, but I'm having a bit
of an issue trying to get the statement correct.

 

Thanks!

 

/b;

-=-=-=-=-=-=-=-=-=-=-=-=-=-
Brian Piotrowski
Assisstant Mgr. - I.T.
Simcoe Parts Service, Inc.
Ph: 705-435-7814 x343
Fx: 705-435-6746
-=-=-=-=-=-=-=-=-=-=-=-=-=-