52. CREATE OR REPLACE TRIGGER prevent_gross_modification

53. {additional trigger information}

54. BEGIN

55. IF TO_CHAR(sysdate, DY) = MON

56. THEN

57. RAISE_APPLICATION_ERROR(-20000,Gross receipts cannot be deleted on Monday);

58. END IF;

59. END;

This trigger must fire before each DELETE of the GROSS_RECEIPT table. It should fire only once for the entire DELETE statement. What additional information must you add?

1. BEFORE DELETE ON gross_receipt

2. AFTER DELETE ON gross_receipt

3. BEFORE (gross_receipt DELETE)

4. FOR EACH ROW DELETED FROM gross_receipt