(free) Database Schema Comparison Tools

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caseyry
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Posts: 79
Joined: 25-Feb-2005
# Posted on: 04-Aug-2005 17:51:49   

Does anyone know of a free (as in cost) database schema comparison tool?

I just need a basic tool that compares the schema of two different databases and lets me know what the differences are. I don't necessarily need a tool to generate DDL scripts to automatically "merge" the differences.

As a hack, I used LLBLGen Pro's db refresh which does tell me that there are schema differences, but the output it's a little hard to translate into what I need. (This is not a complaint about LLBLGen. smile )

Thanks, -Ryan Casey

arschr
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Posts: 894
Joined: 14-Dec-2003
# Posted on: 04-Aug-2005 19:53:58   

We script our database schemas out each night, if we want to id changes we then load 2 of them into winmerge.

This is pretty low tech, but is very free.

caseyry
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Posts: 79
Joined: 25-Feb-2005
# Posted on: 04-Aug-2005 21:27:02   

arschr wrote:

We script our database schemas out each night, if we want to id changes we then load 2 of them into winmerge.

Good idea...thanks.

Scotty
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Posts: 41
Joined: 24-Jun-2005
# Posted on: 04-Aug-2005 22:17:29   

arschr wrote:

We script our database schemas out each night, if we want to id changes we then load 2 of them into winmerge.

This is pretty low tech, but is very free.

This is a great suggestion. Thanks.

JimFoye avatar
JimFoye
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Posts: 656
Joined: 22-Jun-2004
# Posted on: 04-Aug-2005 23:46:35   

Something like this?

http://www.red-gate.com/SQL_Compare.htm

[Edit] Sorry, I just saw you were looking for something free. Never mind.