The NULL Statement : Exception « PL SQL Programming « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » PL SQL Programming » Exception

24. 14. 4. The NULL Statement

The NULL statement is simply a statement that does nothing.

Its format is simply


NULL;

24. 14. Exception
	24. 14. 1.	Exceptions
	24. 14. 2.	Types of more commonly used Exceptions
	24. 14. 3.	Exception Handling
	24. 14. 4.	The NULL Statement
	24. 14. 5.	ZERO_DIVIDE Exception
	24. 14. 6.	When the exception occurs, program control passes to the EXCEPTION block where the WHEN clause is examined for a matching exception.
	24. 14. 7.	Understanding Different Exception Types
	24. 14. 8.	DUP_VAL_ON_INDEX Exception
	24. 14. 9.	INVALID_NUMBER Exception
	24. 14. 10.	Catch 'divide by zero' exception
	24. 14. 11.	OTHERS Exception
	24. 14. 12.	Because OTHERS handles all exceptions, you must list it after any specific exceptions in your EXCEPTION block.
	24. 14. 13.	Declare variables in exception handler
	24. 14. 14.	Data not found exception
	24. 14. 15.	Too many rows exception

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