| 24. 21. 1. Adding User-Defined Exceptions |
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Before raising a user-defined exception, you must first declare the exception. |
The syntax is |
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<exception_name> exception;
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When you raise the exception, you do it by using the RAISE command. |
The syntax is: |
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Handle your exception just as if it were a named predefined exception. The syntax is: |
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when <exception_name> then
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