31. What is a SQL view? Briefly explain the use of views. A SQL view is a virtual table built from other tables or views. Views are used to (1) …
DBMSInterview Questions and AnswersTechnical Interview Questions and Answers
31. What is a SQL view? Briefly explain the use of views. A SQL view is a virtual table built from other tables or views. Views are used to (1) …
21. Explain the relationship between entity, entity class, and entity instance. An entity is something that can be identified in the users’ work environment, something that the users want to …
11. Discuss the alternative terminology that is used in the relational model. Relations are also called tables, and sometimes by the older data processing term files. A row is known …
1. What are data and information, and how are they related in a database? Data is recorded facts and figures, and information is knowledge derived from data. A database stores …