Exception Handler

An exception handler processes a raised exception. Exception handlers appear in the exception-handling parts of anonymous blocks, subprograms, triggers, and packages.

Topics

• Syntax

• Semantics

• Examples

• Related Topics

Syntax

exception_handler ::=

See "statement ::=".

Semantics

exception

Name of either a predefined exception (see Table 11-3) or a user-defined exception (see "Exception Declaration").

If PL/SQL raises a specified exception, then the associated statements run.

OTHERS

Specifies all exceptions not explicitly specified in the exception-handling part of the block. If PL/SQL raises such an exception, then the associated statements run.

In the exception-handling part of a block, the WHEN OTHERS exception handler is optional. It can appear only once, as the last exception handler in the exception-handling part of the block.

Examples

• Example 11-3, "Single Exception Handler for Multiple Exceptions"

• Example 11-4, "Locator Variables for Statements that Share Exception Handler"

• Example 11-6, "Anonymous Block Handles ZERO_DIVIDE"

• Example 11-9, "Declaring, Raising, and Handling User-Defined Exception"

• Example 11-13, "Exception that Propagates Beyond Scope is Handled"

• Example 11-23, "Exception Handler Runs and Execution Ends"

• Example 11-24, "Exception Handler Runs and Execution Continues"

• Example 12-12, "Handling FORALL Exceptions Immediately"

• Example 12-13, "Handling FORALL Exceptions After FORALL Statement Completes"

Related Topics

In this chapter:

• "Block"

• "EXCEPTION_INIT Pragma"

• "Exception Declaration"

• "Function Declaration and Definition"

• "Procedure Declaration and Definition"

• "RAISE Statement"

• "SQLCODE Function"

• "SQLERRM Function"

In other chapters:

• "Overview of Exception Handling"

• "Continuing Execution After Handling Exceptions"

• "Retrying Transactions After Handling Exceptions"

• "CREATE PACKAGE BODY Statement"

• "CREATE TRIGGER Statement"