By Steve Conger
Hands-On Database makes use of a scenario-based technique that indicates readers tips on how to construct a database by means of delivering them with the context of a operating case all through each one step of the method.
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Don’t get too deep into the details. 5. Think about the sandwich shop and bakery in Question 4. List what you think the major topics would be. 6. A dentist office wants a database to track its appointments. The specifics of what they want to track are as follows: a. b. c. d. e. All customers of the dental office Customer appointments Which dentist serves each customer at the appointment Which assistants assist each dentist In brief what services were provided at the appointment The database will not track bills and payments (they have a separate software for this purpose).
We need to track whether students attended the sessions they scheduled. That is important, but is it a new topic? ” Terry wanted one more thing, she remembers. She wanted to track student success. To Sharon that seems like a different topic entirely. She recalls that Bill Collins in his class always insisted that a good database like a good table should be focused on a single topic. She decides to leave the list as it is. Things You Should Know Identifying the major topics of a database is an important exercise.
Statement of work 4. Primary key 5. 6. 7. 8. 9. 10. Data integrity Redundancy Delimited files Relational database Entity Relational design 11. SQL 12. Constraints 13. Fixed width files — a. A type of database that uses “relations,” tables, to store and relate tables. — b. The process of organizing data into tables or entities and then determining the relations among them. — c. The language relational databases use to create their objects and to modify and retrieve data. — d. These files have some sort of character separating columns of data.