Oracle® PL/SQL® Interactive Workbook, Second Edition

Chapter 10 Exceptions

1)	Create the following script. For each section determine the number of students registered. If this number is equal to or greater than 15, raise the user-defined exception e_too_many_students and display the error message. Otherwise, display how many students are in a section. Make sure that your program is able to process all sections.
A1:	Answer: Your answer should look similar to the following: SET SERVEROUTPUT ON SIZE 5000 DECLARE CURSOR section_cur IS SELECT section_id FROM section; v_total NUMBER; e_too_many_students EXCEPTION; BEGIN FOR section_rec in section_cur LOOP BEGIN -- calculate number of students enrolled SELECT COUNT(*) INTO v_total FROM enrollment WHERE section_id = section_rec.section_id; IF v_total ...