This chapter shows you how to create and deploy external procedures, and how to configure and use the heterogeneous service agent. The steps include configuration of the Oracle
tnsnames.ora network configuration files. A sample C program is provided in the text and online to implement the external procedure for your specific platform.
External procedures let you write external C or C-callable libraries to support business applications. C or C-callable libraries reside on the server tier, and their location and privileges must be defined within the
env variable of the Oracle