Single Choice Questions 6. In SQL Server, there are two types of databases: system databases and ( ). A. Object-oriented databases. B. User databases. C. Relational databases. D. Test databases. 7. Normalization of the database schema is performed during the ( ) of database design. A. Requirements analysis phase. B. Conceptual design phase. C. Logical design phase. D. Physical design phase. 8. The incorrect operation expression involving NULL values in SQL is ( ) A. AGE IS NULL B. AGE IS NOT NULL C. AGE = NULL D. NOT (AGE IS NULL)
Course: Principles of
please solve it within 30 minutes. please please, please
Thank you
Single Choice Questions
6. In SQL Server, there are two types of databases: system databases and ( ).
A. Object-oriented databases. B. User databases.
C. Relational databases. D. Test databases.
7. Normalization of the database schema is performed during the ( ) of database design.
A. Requirements analysis phase.
B. Conceptual design phase.
C. Logical design phase.
D. Physical design phase.
8. The incorrect operation expression involving NULL values in SQL is ( )
A. AGE IS NULL B. AGE IS NOT NULL
C. AGE = NULL D. NOT (AGE IS NULL)
9. One of the characteristics of a database is data sharing, strictly speaking, data sharing refers to ( ).
A. Multiple programs sharing a data collection within the same application.
B. Multiple users sharing data in the same language.
C. Multiple users sharing a data file.
D. Multiple applications, multiple languages, and multiple users mutually using a data collection.
10. Special relational operations implemented by a relational database management system include ( ).
A. Sorting, indexing, statistics. B. Selection, projection, join.
C. Association, update, sorting. D. Display, print, tabulation.
Step by step
Solved in 5 steps
