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From "Piyush Agarwal (JIRA)" <>
Subject [jira] Commented: (DAYTRADER-14) Include sql script in the ear and use a gbean to create tables etc
Date Tue, 10 Oct 2006 17:50:26 GMT
    [ ] 
Piyush Agarwal commented on DAYTRADER-14:

After looking at the code I think we can lookup the database product name using DatabaseMetaData
and based on that read a specific DDL file to drop and recreate the db tables. This will account
for the differences in schemas of the various database vendors like Derby, db2, oracle etc.
It will also save us from hard-coding those DDL-SQL in the application and having a nightmare
everytime we change/update the database schema.

The DDL files will be packaged at a specific location within the Daytrader web.war file (say
something like web.war/WEB-INF/dbscripts/ folder). Right now we can detect and provide DDL
files for databases like Db2, derby and oracle ("tested" databases); for any other "un-tested"
database we can make a provision for the user to supply the DDL at a location like web.war/WEB-INF/dbscripts/OTHER/Table.ddl
and it will be executed.

> Include sql script in the ear and use a gbean to create tables etc
> ------------------------------------------------------------------
>                 Key: DAYTRADER-14
>                 URL:
>             Project: DayTrader
>          Issue Type: Improvement
>          Components: EJB Tier
>    Affects Versions: 1.2
>            Reporter: David Jencks
>         Attachments: d-j-plan.xml, DAYTRADER-14.patch
> You can use the DatabaseIntitializationGBean (GERONIMO-2396) in a g. plan and include
the sql script in the ejb module so the database will get created if not already present.
This is way better than the previous hack of including a pre-built database in the car file.

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