JTA Support
To use JDBC distributed transactions through JTA, one of the following databases is required:

Oracle 12
c R1 (12.1)

Oracle 11
g R1 (11.1) or R2 (11.2)

Oracle 10
g R1 (10.1) or R2 (10.2)

Oracle9
i R1 (9.0.1) or R1 (9.2)

Oracle8
i (8.1.7)
Note: If you install the Oracle driver and want to take advantage of JDBC distributed transactions through JTA, you must install Oracle8i or higher.