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  1.  Home
  2. JAVA400-L
  3. May 2006

Re: Cloudscape / Apache Derby

These are small apps that use a DB and, as I said, I haven't pushed this into production. But while testing my apps I'd just change the driver and connection information and I experienced no problems switching between DB's. 

I checked the Javadocs and found this:

http://db.apache.org/derby/javadoc/engine/org/apache/derby/database/Database.html#backup(java.lang.String,%20boolean)
Looks like you can call the backup method and back the whole thing up to a another directory.
So much to do and so little time. If I stumble across something while I move this to production I'll post a note to you. 

Pete


albartell wrote:


I plan to run all of them from WASCE so Derby will replace the MySQL and MS
SQL databases we currently have. 
The reason I have hesitated to completely replace existing databases (I use
MySQL extensively also) is because I wasn't sure if Derby was as "easy" for
the user to access with their third party applications to build reports on.
Is all that's required is a jdbc connection statement and the appropriate
jars?

How does one do back/restore of table data? Is there a dump feature?

Thanks for your comments Pete,
Aaron Bartell 
-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Pete Helgren
Sent: Tuesday, May 16, 2006 3:28 PM
To: Java Programming on and around the iSeries / AS400
Subject: Re: Cloudscape / Apache Derby

I have only used it for some testing/prototyping and only with in the
confines of Websphere Application Server Community Edition.

I brought over a DB from MySQL and one from MS SQL and installed them, quite
easily as I recall, into the Derby DB in WASCE (using scripts generated from
SQuirreL).  No problems noted but I also haven't scaled it at all.

I am building a Linux server on an IXS that will be hosting all our company
web applications.  I plan to run all of them from WASCE so Derby will
replace the MySQL and MS SQL databases we currently have.  I'll know more
after the migration.

Pete Helgren


albartell wrote:
I just got this webcast invite in the mail to inform the masses about Cloudscape/ Apache Derby. 

http://www-304.ibm.com/jct09002c/isv/news/email/Cloudscape_wc_5-24_nala
.html
From what I have heard Apache Derby is an "embeddable" java database. 
I can
see it being useful for configuring websites where I would traditionally use *.properties files.
My Question: Is anybody using Derby/Cloudscape? If so what is your particular use? 

Aaron Bartell
http://mowyourlawn.com/blog



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