Printable worksheet · 3 of 4

Relationships avoid repeated inconsistent copies - Paper 3

Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.

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Invented tables: Students(ID,Name): (107,'Alex'), (207,'Alex'). Courses(ID,Title): (307,'Robotics'), (407,'Art'). Enrolments(StudentID,CourseID): (107,307), (207,407). Keys identify records; names and titles are display fields. Rename course 307 to 'Robotics lab' without replacing its ID.

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