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SQL Query to pull two fields from two different tables

Posted on 2014-02-06
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Last Modified: 2014-02-06
I'm trying to do the following using a select to find all addrnames that do not have a zipcode. Addrname and zipcode live in two different tables.

----pseudo code

SELECT DISTINCT Addrname
from tableA

where tableB.zipcode is NULL
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Question by:bjbrown
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1 Comment
 
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Accepted Solution

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Brian Pringle earned 2000 total points
ID: 39839568
You would need to select data from tableA, tableB and form some sort of relationship.  Can you provide information about the column names in each table?  What is the name of the column in each table that forms the relationship?

It would be something like...

select tableA.Addrname
from tableA, tableB
where tableA.somecolumn = tableB.somecolumn
and tableB.zipcode is NULL
                     (or maybe just tableB.zipcode = "")
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