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RE: Methods to Create Smaller Test DB from Production?

From: Mercadante, Thomas F <thomas.mercadante_at_labor.state.ny.us>
Date: Mon, 1 Mar 2004 14:47:40 -0500
Message-ID: <DE8A21F8F1D0254EA4A9214D52AB2FEDAD5961@exchsen0a1ma>


David,  

Boy, this would be a great tool if it existed.  

I think the only way out for you is to roll-your-own. You could easily identify code tables (look-up tables) and export all of that data. But the relational data (like your main parent table and all of the subsequent children records) you will probably need to move by hand - or by writing a program to select, say, 10,000 master records and all of the subsequent child records. It's not an easy task, but once you've done it, it is in the can - but subject to updates when new tables and relationships come along.  

Good Luck!  

Tom Mercadante
Oracle Certified Professional

-----Original Message-----
From: David Wagoner [mailto:dwagoner_at_arsenaldigital.com] Sent: Monday, March 01, 2004 2:20 PM
To: 'oracle-l_at_freelists.org'
Subject: RE: Methods to Create Smaller Test DB from Production?

So, Dennis, do you always have enough disk space on your test/dev servers to hold an entire copy of Production? For sites with VLDB, this is not possible.

(I agree that testing your backups is critical, and this is one method to do that- if you have enough disk space in Test.)

Best regards,

David B. Wagoner
Database Administrator

-----Original Message-----
From: DENNIS WILLIAMS [ mailto:DWILLIAMS_at_LIFETOUCH.COM
<mailto:DWILLIAMS_at_LIFETOUCH.COM> ]

Sent: Monday, March 01, 2004 2:12 PM
To: 'oracle-l_at_freelists.org'
Subject: RE: Methods to Create Smaller Test DB from Production?

David - I disagree. I feel that your energy is better expended in creating test databases by recovering your production backup. You do test your backups, don't you? When we have created subset databases, the testing often

failed to reveal problems, or the users would become frustrated with missing

data. Just my 2 cents worth.

Dennis Williams
DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com

-----Original Message-----
From: oracle-l-bounce_at_freelists.org [ mailto:oracle-l-bounce_at_freelists.org
<mailto:oracle-l-bounce_at_freelists.org> ]On
Behalf Of David Wagoner
Sent: Monday, March 01, 2004 1:06 PM
To: 'oracle-l_at_freelists.org'
Subject: RE: Methods to Create Smaller Test DB from Production?

Juan,   

Unfortunately, that solution requires that you have enough disk space to hold an entire copy of production, not to mention the archive logs that will

be generated by deleting data.   

I'm looking for clever solutions to this problem. I suppose writing your own referentially-correct ETL from Production to Test is one way. That's sort of what the DataBee product does, I think. Subsetting a production DB for test would be an excellent new feature for 10g!   

Best regards,

David B. Wagoner
Database Administrator

-----Original Message-----
From: Juan Cachito Reyes Pacheco [ mailto:jreyes_at_dazasoftware.com
<mailto:jreyes_at_dazasoftware.com> ]

Sent: Monday, March 01, 2004 1:44 PM
To: oracle-l_at_freelists.org
Subject: Re: Methods to Create Smaller Test DB from Production?

You can copy the production database, the optimal You can delete records, and make this faster, and export import statistics to get performance test more accurate to reality.   

I know many of you have addressed this same issue...

What is a good method to create a smaller test database from Production?

I've read about the commercial product called DataBee for doing this, but what other methods are you guys using? With all of the expertise in this list, there are bound to be some interesting solutions.

Best regards,

David B. Wagoner
Database Administrator



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Received on Mon Mar 01 2004 - 13:45:30 CST

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