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Overridden Predefined Exceptions

Rule description

  • Predefined exceptions should not be overridden

 

Non-compliant Code Example

DECLARE
NO_DATA_FOUND EXCEPTION;        --Non compliant code (Predefined exceptions is override)

BEGIN
	FOR i IN 1 .. CUSTOMER_TABLE.COUNT
		LOOP
			IF CUSTOMER_TABLE(i) IS NOT NULL THEN
				DBMS_OUTPUT.PUT( i || ' = (' || CUSTOMER_TABLE(i).Name || ', ' || CUSTOMER_TABLE(i).PhoneNumber || ')' );
			END IF;
		END LOOP;
EXCEPTION
  WHEN NO_DATA_FOUND THEN
	Log_Errors ( 'No data found');
  WHEN ERRORS THEN
	Log_Errors ( 'Error Log...' || Chr(10) ||
		DBMS_UTILITY.FORMAT_ERROR_STACK() );
    Log_Errors ( 'Error Log...' || Chr(10) ||
		DBMS_UTILITY.FORMAT_ERROR_BACKTRACE() );
    DBMS_OUTPUT.PUT_LINE ( '----------' );
    RAISE;
END CUSTOMER_TABLE_ITERATION;

Compliant Code Example

DECLARE
VE_NO_DATA_FOUND EXCEPTION;        --Compliant code

BEGIN
	FOR i IN 1 .. CUSTOMER_TABLE.COUNT
		LOOP
			IF CUSTOMER_TABLE(i) IS NOT NULL THEN
				DBMS_OUTPUT.PUT( i || ' = (' || CUSTOMER_TABLE(i).Name || ', ' || CUSTOMER_TABLE(i).PhoneNumber || ')' );
			END IF;
		END LOOP;
EXCEPTION
  WHEN NO_DATA_FOUND THEN
	Log_Errors ( 'No data found');
  WHEN VE_NO_DATA_FOUND THEN
	Log_Errors ( 'Error Log...' || Chr(10) ||
		DBMS_UTILITY.FORMAT_ERROR_STACK() );
    Log_Errors ( 'Error Log...' || Chr(10) ||
		DBMS_UTILITY.FORMAT_ERROR_BACKTRACE() );
    DBMS_OUTPUT.PUT_LINE ( '----------' );
    RAISE;
END CUSTOMER_TABLE_ITERATION;
Visual Expert 2020
 VEPLSQLRULE6