Need help with database connection and trasaction!

Question

Hi, I'm trying to load data from a huge report to DB2. My old way of doing this is: 1. using DriverManger.getConnection to get a connection.
2. Then set autoCommit to false.
3. Keep the connection open.....
4. con.commit once I reach a section, let's say around 5000 records per section.
5. Close the connection once I finish loading, (Finally block)
I'm still new in the java world and kind of concern of the way of what I'm doing. Then I did some research. Perhaps using javax.sql.DataSource is a better approach. But I couldn't use it in WSAD. Do I need do some configuration? I heard it's in j2ee 1.4 . Is that the reason I couldn't use it?
And.......I tried to use DAO pattern to talk with DB. By that way, I have to open and close connection everytime I invoke the dao method. Then how can I control the transaction? Because I don't want to insert each record data in to the table right away. I want to do the commit once I get all records for one section. No idea how can I achieve this.
Any suggestion will be really appreciated!!!

Answer 1

I'm still new in the java world and kind of concern
of the way of what I'm doing. Then I did some
research. Perhaps using javax.sql.DataSource is a
better approach. But I couldn't use it in WSAD. Do I
need do some configuration? I heard it's in j2ee 1.4
. Is that the reason I couldn't use it?What you need to do is configure a Connection datasource. WSAD has that. You just need to go through the documentation and find out. I never worked on it.
And.......I tried to use DAO pattern to talk with DB.
By that way, I have to open and close connection
everytime I invoke the dao method. Then how can I
control the transaction? Because I don't want to
insert each record data in to the table right away. I
want to do the commit once I get all records for one
section. No idea how can I achieve this.Since you want to simply insert multiple records, you might want to insert them in a batch. This is available in PreparedStatements.
$ Carol.