A system routine invoked automatically by the processor in any of a variety of exceptional circumstances. For example, the trap dispatcher is an exception handler that is called by the processor, to dispatch unimplemented A-line instructions.
a block of code prefaced by the keyword catch , the name of the exception to be handled, and a symbolic name for the exception's data, if any
an element that specifies a body to execute in case the specified exception occurs during the execution of the protected node
a series of PL/SQL statements that are executed in response to a raised exception
a statement sequence that is executed when an exception occurs
A block of code that reacts to a specific type of exception. If the exception is for an error that the program can recover from, the program can resume executing after the exception handler has executed.
A section of code at the end of a block which defines the recovery actions to be performed in response to exceptions raised within that block.
(1.) A set of routines used to detect deadlock conditions or to process abnormal condition processing. An exception handler allows the normal running of processes to be interrupted and resumed. (2.) Exception handlers are catch blocks in C++. catch blocks catch exceptions when they are thrown from a function enclosed in a try block. try blocks, catch blocks and throw expressions are the constructs used to implement formal exception handling in C++.
(1) A function that is invoked when an exception is detected, and that either corrects the problem and returns execution to the program, or terminates the program. (2) In the C++ language, a catch block that catches a C++ exception when it is thrown from a function in a try block.
Code that is called when an exception occurs during the execution of a program. If the programmer does not provide a handler for a given exception, a built-in system exception handler will usually be called, aborting the program and sending an error indication to the user.