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Transaction failure

Santiago Conde
Greenhorn

Joined: Nov 09, 2004
Posts: 16
Hello

I'm having a curious problem here: if I use con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY) and a problem arises during operations, the rollback() method doesn't rollback. Instead of that, if I use con.createStatement(), the rollback works right (con -> a connection).

Using JDBC driver jtds, connecting to a SQLServer. The same issue connecting to a DB2/AS400.

Any ideas?

Thanks.
Santi


Dudo, your brain is vanishing like the fog.- Fraggel Rock
Jeanne Boyarsky
author & internet detective
Marshal

Joined: May 26, 2003
Posts: 30764
    
156

Santiago,
By using the CONCUR_READ_ONLY setting, you are telling the driver that your queries do not update the database. Therefore, the driver thinks there is nothing to roll back.


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Santiago Conde
Greenhorn

Joined: Nov 09, 2004
Posts: 16
Hi Jeanne

Yes, I noticed that and also tested it with the option 'UPDATABLE': same behavior.

One thing I forgot to tell is that a use SQL strings and the executeQuery()/executeUpdate() methods to issue the commands. It's my understanding that doing so, the second parameter in the createStatament method should be irrelevant since I'm not working with the RecordSet attributes to modify the database records.

Right now I have solved my problem using a default RecordSet and an ArrayList to move back and forward through the data, but I'd like to understand why is this happening.

Take care.
Santi
 
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subject: Transaction failure