Java 程序連接 Oracle 數據庫，需要加載 JDBC 驅動程序，而 JDBC 驅動程序的版本號和 JDK/J2SDK 的版本號保持一致。（對于 J2SDK V1.4 及之后的 J2SDK，Oracle 的 JDBC 驅動程序會按照ojdbc<j2sdk_version>.jar 的規則命名。）

數據一：JDBC支持的JDK/J2SDK的版本數據

JDK/J2SDK   JDBC Driver File Name          Oracle Version
---------    ---------------------         ------------
1.1.x          classes111.zip                   7.3.4 - 
1.2            classes12.zip                     8.1.6 -
1.3            classes12.zip                     9.2 -
1.4            ojdbc14.zip                       9.2 -

數據二：最近幾個版本的Oracle附帶的JDBC驅動程序版本

8i 8.1.7.1 JDBC Drivers
jdk 1.2 classes12.zip (1,892 kb)
jdk 1.1 classes111.zip (1,741 kb)

9i 9.0.1.4 (release 1) JDBC Drivers
jdk 1.2 and jdk 1.3 classes12.zip (1,144 kb)
jdk 1.1 classes111.zip (9,886 bytes)

9i 9.2.0.5 (release 2) JDBC Drivers
jdk 1.4 ojdbc14.jar (1,200 kb)
jdk 1.2 and jdk 1.3 classes12.zip (1,232 kb)
jdk 1.1 classes111.zip (1,063 kb)

10g 10.1.0.4 JDBC Drivers
jdk 1.4 ojdbc14.jar (1,410 kb)
jdk 1.2 and jdk 1.3 classes12.jar (1,474 kb)

10g 10.2.0.1.0 (release 2) JDBC Drivers
jdk 1.4 ojdbc14.jar (1,536 kb)
jdk 1.2 and jdk 1.3 classes12.jar (1,590 kb)