22319 Lecture Notes - Lecture 5: Database Security, Database, Savepoint

11 views10 pages

Document Summary

Database security refers to the collective measures used to protect and secure a database or database management software from illegal use and malicious threats and attacks. Confidentiality: confidentiality of data is ensured by a secured system. Types of database users: naive user, sophisticated users, application programmers, specialized users. They interact with system through application programs. They may input data through application programs or view the output through application programs. Interact with system by making requests in the form of query languages. These queries are submitted to query processor. These are the users who write application programs. The application programs are written in programming languages like. They develop special type of database application programs. Applications like expert systems, cad (computer aided designs). Creating, altering and deleting a user: create user. A new user account is created with the create user statement . Create user abc identified by 12345: altering user. The password can be changed using alter user statement.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents

Related Questions