Chapter 15 Vocab CSCI 210

4. The "E" in QBE
6. In database terminology call the characteristics in the row
7. The declaration of entities and relationship of a database (ends in an "a")
9. A relational database field that could potentially be chosen as the table's key
13. Row-Always-__________ requirement
17. __________ Markup Language (XML)
18. D1 X D2 --> DR (no space)
20. Known as the view of the database created for users on-the-fly and is customized
22. Attributes are also known as
23. The QBE is available to users who have ________ access
24. D1 +D2 -> DR
25. A command that tells the database system how to manipulate its tables

1. Table contains a set of things with common attributes that uniquely identify each one
2. Rule groups the data of different instances of the same type
3. Database stored on a disk drive of the computer system
5. The technical term for a row
8. Rule groups the data for a single thing
10. Attributes also have _____ type such as a number, text, image
11. D1 Formula --> DR
12. The number of operations that can be performed to manipulate the table
14. Tables are technically known as
15. In database terminology call the characteristics in a column
16. Most widely used database language
19. A type of candidate key that the computer and user agree to use to locate entities during operations
21. A combination of the crossproduct and select operation