Overview of External Procedures
Oracle provides a rich platform for application programming through PL/SQL and the support for multilanguage programs. Programming languages that allow the technical translation of real world problems have different features and advantages, for example, PL/SQL is tightly integrated with SQL and computation-based logic can be run efficiently in C. Some of the crucial factors that determine the choice of a programming language can be code performance, portability, and security. Therefore, you might see application development involving multiple programming languages.
Oracle PL/SQL allows users to create a PL/SQL program that calls a C or Java procedure. The special purpose interface allows the users to utilize the strengths and features of multiple programming languages and support code reusability.
External Procedures
An external procedure is stored in a dynamic linked library (DLL) or a similar unit, which is prototyped in a call specification using Oracle...