Whenever a connection is created by using the JDBC, then by default it is in auto- commit mode. This means that SQL statement will be automatically committed immediately after it is executed and it is treated as a transaction. But imagine a situation where you want to execute a batch of statements, either they should commit at on go or they should get failed together. For this we need to disable the auto- commit mode by using the method:
After setting the auto- commit as false, no SQL statement will be committed until we call the con.commit() method. If there arises any problem while committing then the set of statements will be rollback, without committing.
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