Consider the following table definition:
CREATE TABLE couples( id NUMBER PRIMARY KEY NOT NULL, first_name VARCHAR2(50) NOT NULL, last_name VARCHAR2(50) NOT NULL );
Later the following code is executed:
DECLARE husband_id NUMBER; BEGIN SELECT id INTO husband_id FROM couples WHERE first_name = 'John' AND last_name = 'Johnson'; INSERT INTO couples(id, first_name, last_name) VALUES(husband_id + 1, 'Jane', 'Johnson'); END;
Select the exceptions that might be raised.
(Select all acceptable answers.)
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