This illustration shows a Java application connection using a JDBC OCI driver. The client shows a communication stack. From the top down, this stack is constructed with the following layers:

• Application layer

• JDBC OCI Driver

• Oracle Net

The database server shows a communication stack. From the top down, the stack is constructed with the following layers:

• RDBMS

• Oracle Net

The TCP/IP network protocol resides between the client and the database server.