Which keyword is used to handle exceptions in a PL/SQL procedure?TRYCATCHEXCEPTIONHANDLENext
Question
Which keyword is used to handle exceptions in a PL/SQL procedure?
TRY
CATCH
EXCEPTION
HANDLE
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Solution
In PL/SQL, the keyword used to handle exceptions is EXCEPTION.
Here is a step by step guide on how to use it:
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Define the PL/SQL block: This is where you write your code. It starts with the keyword DECLARE, followed by the variables you want to declare.
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Write the executable code: This part starts with the keyword BEGIN, followed by the code you want to execute.
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Define the exception: After the executable code, you use the keyword EXCEPTION. This is where you define what should happen if an error occurs.
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Handle the exception: After the EXCEPTION keyword, you write the code that should be executed if an error occurs. This could be a simple error message, or more complex code to handle the error.
Here is an example:
DECLARE
my_exception EXCEPTION;
BEGIN
-- executable code
EXCEPTION
WHEN my_exception THEN
-- error handling code
END;
In this example, if the exception "my_exception" is raised during the execution of the code, the code after the THEN keyword will be executed.
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