Handling a custom exception : Handle Exception « PL SQL Programming « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » PL SQL Programming » Handle Exception

24. 15. 5. Handling a custom exception


SQL>

SQL>

SQL> DECLARE

  2    e_TooManyEmployee EXCEPTION;  -- Exception to indicate an error condition

  3  BEGIN

  4    RAISE e_TooManyEmployee;

  5  EXCEPTION

  6    WHEN e_TooManyEmployee THEN

  7      DBMS_OUTPUT.put_line('e_TooManyEmployee');

  8  END;

  9  /

e_TooManyEmployee



PL/SQL procedure successfully completed.



SQL>

SQL>

24. 15. Handle Exception
	24. 15. 1.	Code with No Exception Handler
	24. 15. 2.	Code with Conditional Control to Avoid an Exception
	24. 15. 3.	Code with Explicit Handler for Predefined Exception
	24. 15. 4.	Handling an Unnamed Exception
	24. 15. 5.	Handling a custom exception
	24. 15. 6.	An example showing continuing program execution after handling exception
	24. 15. 7.	The OTHERS Exception Handler
	24. 15. 8.	Assigning a Name to Predefined Exception Code
	24. 15. 9.	Using SQLCODE for error code and SQLERRM for error message
	24. 15. 10.	Catch custom exception
	24. 15. 11.	Handling exceptions without halting the program
	24. 15. 12.	Select into statement with exception catch statement
	24. 15. 13.	Check OTHERS exception
	24. 15. 14.	Error message code and text
	24. 15. 15.	Using PRAGMA EXCEPTION_INIT
	24. 15. 16.	NO data found
	24. 15. 17.	TOO_MANY_ROWS Exception
	24. 15. 18.	Use a nested block to catch exceptions from singleton SELECT.

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