1. INTRODUCTION TO DATABASES
CHAPTER 1
INTRODUCTION TO DATABASES

2. Agenda FILE-BASED SYSTEMS HISTORY OF DATABASE
DATABASE MANAGEMENT SYSTEMS (DBMS)

3. FILE-BASED DEFINITION
PROGRAM DEFINES AND MANAGES IT’S OWN DATA

4. LIMITATIONS OF FILE-BASED
SEPARATION AND ISOLATION
DUPLICATION
PROGRAM & DATA DEPENDENCE
FIXED QUERIES
PROLIFERATION OF APPLICATION PROGRAMS

5. HISTORY OF DATABASE SYSTEMS
FIRST GENERATION
HIERARCHICAL MODEL
INFORMATION MANAGEMENT SYSTEM (IMS)
NETWORK MODEL
CONFERENCE ON DATA SYSTEM LANGUAGES (CODASYL)
DATA BASE TASK GROUP (DBTG)
SECOND GENERATION
RELATIONAL MODEL
E. F. CODD
DB2, ORACLE
THIRD GENERATION
EXTENDED RELATIONAL DATA MODEL/OBJECT-RELATIONAL DATA MODEL
OBJECTED-ORIENTED DATA MODEL

6. DATABASE DEFINITION SYSTEM CATALOG DATA ABSTRACTION
A COLLECTION OF SELF-DESCRIBING AND INTEGRATED DATA FILES
SYSTEM CATALOG
META DATA
DATA DICTIONARY
OVERHEAD DATA
DATA ABSTRACTION

7. DATABASE MANAGEMENT SYSTEM (DBMS) FACILITIES
DATA DEFINITION LANGUAGE (DDL)
DATA MANIPULATION LANGUAGE (DML)
STRUCTURED QUERY LANGUAGE (SQL)
VIEW
SECURITY SYSTEM
INTEGRITY SYSTEM
CONCURRENCY CONTROL SYSTEM
BACKUP & RECOVERY SYSTEM

8. DBMS ENVIRONMENT
HARDWARE
SOFTWARE
DATA
PEOPLE
PROCEDURE

9. ROLES IN DATABASE ENVIRONMENT
DATA ADMINISTRATOR & DATABASE ADMINISTRATOR
Administration
DATABASE DESIGNER
Logical & physical
APPLICATION PROGRAMMER
END-USER
Naive & sophisticated

10. ADVANTAGES OF DATABASE SYSTEMS
CONTROL REDUNDANCY
CONSISTENCY
INTEGRITY
SECURITY
CONCURRENCY CONTROL
BACKUP & RECOVERY
DATA STANDARD
MORE INFORMATION
DATA SHARING & CONFLICT CONTROL
PRODUCTIVITY & ACCESSIBILITY
ECONOMY OF SCALE
MAINTENANCE

11. LIMITATIONS OF DATABASE SYSTEMS
COMPLEXITY
SIZE
COST
SOFTWARE
HARDWARE
CONVERSION
PERFORMANCE
VULNERABILITY

12. Points to Remember FILE-BASED SYSTEMS HISTORY OF DATABASE
DATABASE MANAGEMENT SYSTEMS (DBMS)

13. ASSIGNMENT
Review Chapter 1
Read appendix c & chapter 2