Overview of Exceptions

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Overview of Exceptions

Overview of Exceptions

The term exception in PL/SQL can be used to refer to a system generated error (which typically has a code that starts with ORA- or PLS-) or a user defined error condition. The term used to describe the point at which an error occurs is raised. When an exception is raised, normal program execution ceases and the exception is propagated to the nearest available exception handler in scope (or out of the enclosing block). A system generated error will be raised automatically, while you must explicitly raise a user defined error using the RAISE keyword or RAISE_APPLICATION_ERROR procedure.

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