GEOG281 Study Guide - Midterm Guide: Sequential Access

• School: University of Waterloo
• Department: Geography and Environmental Management
• Course: GEOG281
• Professor: Su Yin Tan

Document Summary

Either 4 quesions, 5 marks each or 5 quesions, 4 marks each. Muliple associaions with like records in diferent iles. Easy access and minimal technical training for users. Easy modiicaion and addiion of new relaionships, data, and records. Physical storage of data can change without afecing relaionships between records. Diicult to process muliple values of a data item. Each associaion requires repeiive data in other records. Method of storage and disks impacts processing ime. Easy to make logical mistakes due to lexibility of relaionships between records. A lot of deine and diferentiate, like compare and contrast. Which method would be better suited for what and why is that the case.