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JavaRanch » Java Forums » Databases » Object Relational Mapping
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alter table command

Arun R. S. Chandran
Ranch Hand

Joined: Oct 08, 2008
Posts: 81
Hi,

I am using hibernate. Is there any query we can use for altering a table?
If it is possible please reply me.

-Arun
Paul Sturrock
Bartender

Joined: Apr 14, 2004
Posts: 10336

This is not something you should be doing with Hibernate. If you alter a table, you invalidate any object mapped to it.

Hibernate does support dynamically creating and updating scheama at start up. Have a look at the hbm2ddl properity in the configuration docs.

Hibernate also allows you to run native SQL (check the Session class's JavaDocs). But like I said, not a safe thing to do if the table is mapped.


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Arun R. S. Chandran
Ranch Hand

Joined: Oct 08, 2008
Posts: 81
Thanks Paul
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: alter table command
 
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