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How to Handle Exceptions in PL/SQL Code
Handling exceptions in PL/SQL code is crucial for ensuring robust error handling and application stability. There are several methods available for exception handling in PL/SQL:
- Using EXCEPTION block: This method involves enclosing the code that may raise an exception within an EXCEPTION block, followed by specific handling logic for each exception type.
- RAISE_APPLICATION_ERROR: This method allows custom error messages to be raised along with predefined Oracle error codes, providing more detailed information on the error encountered.
- WHEN OTHERS: The WHEN OTHERS clause can be used to catch any exceptions that are not explicitly handled, providing a fallback mechanism to handle unexpected errors.
- RAISE: The RAISE statement allows developers to explicitly raise exceptions based on specific conditions within the code, enabling fine-grained control over error signaling.
By utilizing these exception handling methods effectively, developers can ensure that their PL/SQL code remains resilient and capable of gracefully handling errors that may occur during runtime.
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