Examine this code: CREATE OR REPLACE PROCEDURE insert_dept (p_location_id NUMBER) IS v_dept_id NUMBER(4); BEGIN INSERT INTO departments VALUES (5, ‘Education’, 150, p_location_id); SELECT department_id INTO v_dept_id FROM employees WHERE employee_id=99999; END insert_dept; / CREATE OR REPLACE PROCEDURE insert_location ( p_location_id NUMBER, p_city VARCHAR2) IS BEGIN INSERT INTO locations (location_id, city) VALUES (p_location_id, p_city); insert_dept(p_location_id); END insert_location; / You just created the departments, the locations, and the employees table. You did not insert any rows. Next you created both procedures. You now invoke the insert_location procedure using the following command: EXECUTE insert_location (19, ‘San Francisco’) What is the result in this EXECUTE command?

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  1. The locations, departments, and employees tables are empty

  2. The departments table has one row. The locations and the employees tables are empty

  3. The location table has one row. The departments and the employees tables are empty.

  4. The locations table and the departments table both have one row. The employees table is empty.

Show answer
Correct Option: A

AI Explanation

To answer this question, let's analyze the code step by step:

  1. The code defines a procedure named insert_dept that takes a parameter p_location_id. Inside the procedure, a v_dept_id variable is declared. The procedure then inserts a row into the departments table with the provided location id, but with fixed values for department_id, department_name, and manager_id.

  2. Next, the procedure attempts to select the department_id into the v_dept_id variable from the employees table where the employee_id is 99999. However, since the employees table is empty (as stated in the question), this select statement will not retrieve any rows.

  3. The insert_dept procedure does not return any value or perform any other actions.

  4. The code also defines another procedure named insert_location that takes two parameters p_location_id and p_city. Inside the procedure, it inserts a row into the locations table with the provided location id and city. It then calls the insert_dept procedure, passing the p_location_id parameter.

  5. Finally, the code attempts to execute the insert_location procedure with the arguments 19 and 'San Francisco'.

Based on the code analysis, the correct answer is:

A. The locations, departments, and employees tables are empty.

Explanation:

  • The code does not insert any rows into the tables. Therefore, all the tables remain empty after executing the insert_location procedure.

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