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Replace string value to correspond with ID value

Posted on 2008-10-31
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Last Modified: 2011-09-20
I'm in the process of converting an old database to a new SQL 2005 database.  The table I'm having trouble with is similar to this:

OrderDate           VendorName            Comments
-------------------------------------------------------------------
10/2/2008           Some Company        Great comment.
9/30/2001           ABC Industries         More comments.
11/18/2004         Big Company            Terrible comment.


My goal is to create another table (called "Vendors") that contains all the different vendor names and gives each a unique ID:

VendorID           Name
---------------------------------------------
1                        Some Company
2                        ABC Industries
3                        Big Company


I already have the new "Vendors" table populated with the vendor names, but I'm not sure how to then go back to the original table and replace the "VendorName" values with the new VendorID.  I know how to script something to perform this (in VB or PHP or something), but I'd like to do this with SQL.

Thanks in advance for any help, and let me know if you need clarification.
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Question by:wotech
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LVL 4

Accepted Solution

by:
justin-clarke earned 500 total points
ID: 22851716
UPDATE tblOLD

SET tblOLD.VendorName = tblNEW.VendorID

FROM tblOLD INNER JOIN
 tblNew ON tblNEW.Name = tblOLD.VendorName

WHERE (tblNEW.Name = tblOLD.VendorName)


Possibly something like that from the top of my head.
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Author Comment

by:wotech
ID: 22852155
Worked like a charm!  Thanks for the help.
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