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Join using a 'like'

Posted on 2012-03-30
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Last Modified: 2012-03-30
I need to find the best way to join another table using a like in the join.

What I have is a query that has a inner join, and left outer join and it is working.
The first part of the query (with the inner join) joins 2 tables together to look for and calculate device events and their duration. The outer join pulls in any event messages if any.

Now what I need to do is join yet another table if the device name appears in one of two fields in another table. So if the device name from the first query appears somewhere in the summary or description fields in the last joined table I need to pull in additional information.

So what I am looking for a way to do this is like

...
outer left join HelpDesk HPD
.. if QueryA.DeviceName appears somewhere in the HPD Sumamry or Description fields


Possible?
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Question by:edrz01
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gpizzuto earned 500 total points
ID: 37786645
outer left join HelpDesk HPD
ON (NPD.Summary+NPD.Description like '%'+QueryA.DeviceName+'%')

Probably you need to use ISNULL(,) both for Summary and for Description
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Author Comment

by:edrz01
ID: 37786782
gpizzuto, Thanks for the idea. I had to also include my date ranges as it was trying to look at all records in the other joined table. Now that I did that the query works!

Thank you.
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