Keine Treffer

Keine Treffer für „Her personal information: studentid, firstname, lastname, telephone, email Her enrollment information: coursecode = EXL20, coursename = Excel, duration = 9, coursecost = 200 If EXL20 is taken only by her, then deleting this row would also delete all information about the course itself, because the course data is not stored separately. This is called a deletion anomaly. Information you might want to keep includes: The historical record that she took the Excel course The course description, duration, and cost for Excel The student's basic details, even if she is no longer enrolled in a course".