26-09-2013, 03:51 PM
PERIODICAL TEST 1(set-A) DATABASE MANAGEMENT SYSTEMS
PERIODICAL TEST .docx (Size: 29.43 KB / Downloads: 25)
PART A
7*2=14
Answer The Following
1) Define database management system?
2) What are the advantages of using a DBMS?
3) Define instance and schema
4) What are the components of storage manager?
5) What is a data dictionary?
6) Define null values.
7) What is foreign key?
PART B 3*12=36
1) Compare File systems with database systems
2) Explain all types of data models
3) Define relational algebra and briefly explain its types with suitable example.