COMMIT OR conn.setAutoCommit(true)

Question

I have noticed some programmer using COMMIT other using conn.setAutoCommit(true); to end the transaction or roll back so what are the benefits of u

Answer 1

The usage of conn.setAutoCommit(); applies to the connection and gives you the possibility to execute X queries in a single transaction, or use one single transaction per execute

As the API describes:

 void setAutoCommit(boolean autoCommit)
                    throws SQLException

Sets this connection's auto-commit mode to the given state. If a connection is in auto-commit mode, then all its SQL statements will be executed and committed as individual transactions. Otherwise, its SQL statements are grouped into transactions that are terminated by a call to either the method commit or the method rollback. By default, new connections are in auto-commit mode

For a simple case:

conn.setAutoCommit(false); 
statement.executeQuery(query); 
statement.commit();

will be the same as:

conn.setAutoCommit(true); 
statement.executeQuery(query);