Changes to table not reflected in Java query

Question

Hello All!
I'm running Oracle J Developer 11g.
I am quite new to executing .sql commands using Java and so am feeling my way around.
I used the IDE's SQL Worksheet and created some tables in a database.
I also used this SQL Worksheet to populate the tables and verified the contents as well.
Then using Java I wrote some code to issue a Select command to a table, store the contents of the query into
Some Arraylists.. etc. etc..
Anyway I then ran the program and everything seemed to work fine.
Then I ran some sql script to Insert more rows into the table.
When I do a sql query select * command, my new rows are there.
Then I run the Java program and the new rows don't seem to be there???
Now I'm stumped. Am I missing something here?
Please can anyone enlighten me?
Any help would be welcome.

Answer 1

Hi,
conn.setAutoCommit();Its used when you want to work in a transaction. If a connection is in a auto commit mode then all sql stmts will be executed and commited as individual tranasction. Else sql stmts are grouped into a transaction which needs to be commited by a method or rollback.
So, after your transaction completes, do return the auto commit state to true.
or
try {
// Connect to Oracle using JDBC driver
System.out.print("*** -> Connecting to -> " + connectionURL + "\n");
conn = DriverManager.getConnection(connectionURL,"SYSTEM","PASSWORD");
System.out.print("*** -> Connected as URL -> " + connectionURL + "\n");
// TURN OFF AutoCommit
//System.out.print("*** -> Turning Off AutoCommit...\n");
conn.setAutoCommit(false);
stmt = conn.createStatement (ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_UPDATABLE);
System.out.print("*** -> Opening ResultsSet...\n");
results = stmt.executeQuery (sql);
conn.commit();
} catch(SQLException sqel) {
conn.rollback();
}Twinkle