Example 5.17.6 A course is defined as introductory if its first digit is one. Using the decode function we can print a list of students and the courses they took followed by an indication of their status using the query:
Example 5.17.6 A course is defined as introductory if its first digit is one. Using the decode function we can print a list of students and the courses they took followed by an indication of their status using the query: