whar are savepoint in a transaction
Transaction control involves committing and roll backing transactions and setting Isolation level for transactions.
1) Setting the Isolation level: Using the Connection.setTransactionIsolation(int level) method isolation level can be set in JDBC. the method can accept any of the arguments listed below.
TRANSACTION_NONE TRANSACTION_READ_COMMITTED TRANSACTION_SERIALIZABLE TRANSACTION_READ_UNCOMMITTED TRANSACTION_REPEATABLE_READ
2) Committing or rolling back: To commit or roll back transactions explicitly, use the commit or rollback methods.
Save point is the point to which we can undo the unsaved data.
Applications can set a savepoint within a transaction and then roll back all work done after the savepoint. A save point is created using the method
To rollback to the save point use