1. Database Administration
Chapter 15
Database Administration
Database Systems: Design, Implementation, and Management, Seventh Edition, Rob and Coronel

2. In this chapter, you will learn:
That data are a valuable business asset that require careful management and how databases play a critical role in an organization
That the introduction of a DBMS has important technological, managerial, and cultural organizational consequences
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

3. In this chapter, you will learn (continued):
What the database administrator’s managerial and technical roles are
About several database administration tools and strategies
How various database administration technical tasks are performed with Oracle
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

4. Data as a Corporate Asset
Data are a valuable asset that require careful management
Data are a valuable resource that can translate into information
If the information is accurate and timely, it is likely to trigger actions that enhance company’s competitive position and generate wealth
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

5. Data as a Corporate Asset (continued)
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

6. The Need for and Role of Databases in an Organization
Database’s predominant role is to support managerial decision making at all levels in the organization
DBMS must provide tools that give each level of management different view of data and support required level of decision making
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

7. Introduction of a Database: Special Considerations
Having computerized database management system does not guarantee that data will be properly used to provide best solutions required by managers
Introduction of a DBMS is likely to have a profound impact, which might be positive or negative, depending on how it is administered
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

8. Introduction of a Database: Special Considerations (continued)
Introduction of DBMS has three important aspects:
Technological-DBMS software and hardware
Managerial-Administrative functions
Cultural-Corporate resistance to change
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

9. The Evolution of the Database Administration Function
Data administration has its roots in the old, decentralized world of the file system
Advent of DBMS and its shared view of data produced new level of data management sophistication and led DP department to evolve into information systems (IS) department
Data management became increasingly complex job, thus leading to development of database administration function
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

10. The Evolution of the Database Administration Function (continued)
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

11. The Evolution of the Database Administration Function (continued)
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

12. The Evolution of the Database Administration Function (continued)
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

13. The Evolution of the Database Administration Function (continued)
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

14. The Database Environment’s Human Component
Even most carefully crafted database system cannot operate without human component
Effective data administration requires both technical and managerial skills
DA must set data administration goals
DBA is focal point for data/user interaction
Need for diverse mix of skills
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

15. The Database Environment’s Human Component (continued)
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

16. The Database Environment’s Human Component (continued)
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

17. The Database Environment’s Human Component (continued)
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

18. The DBA’s Managerial Role
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

19. The DBA’s Technical Role
Rooted in following areas of operation:
Evaluating, selecting, and installing DBMS and related utilities
Designing and implementing databases and applications
Testing and evaluating databases and applications
Operating DBMS, utilities, and applications
Training and supporting users
Maintaining DBMS, utilities, and applications
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

20. Developing a Data Administration Strategy
Critical step for any organization is to ensure its information system supports strategic plans for each of the company’s business areas
Database administration strategy must not conflict with information systems plans
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

21. Developing a Database Administration Strategy (continued)
Information engineering
Translates strategic company’s strategic goals into data and applications that will help company achieve those goals
Output of IE process is information systems architecture that serves as basis for planning, development, and control of future information systems
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

22. Developing a Database Administration Strategy (continued)
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

23. The DBA at Work: Using Oracle for Database Administration
Execution of tasks tends to be DBMS-and operating-system specific
This section is brief introduction to way some typical DBA tasks would be performed in Oracle
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

24. Oracle Database Administration Tools
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

25. Creating Tablespaces and Datafiles
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

26. Managing the Database Objects: Tables, Views, Triggers, and Procedures
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

27. Managing Users and Establishing Security
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

28. Summary Data management is critical activity for any organization
Data should be treated as corporate asset
DBMS is most commonly used electronic tool for corporate data management
Impact of DBMS on organization’s managerial and cultural framework must be carefully examined
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

29. Summary (continued)
Development of data administration function is based on evolution from departmental data processing to more centralized electronic data processing (EDP) department to more formal “data as a corporate asset” information systems (IS) department
Database administrator (DBA) is responsible for managing corporate database
Broader data management activity is handled by data administrator (DA)
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

30. Summary (continued)
DA is more managerially oriented than more technically oriented DBA
Managerial services of DBA function include:
Supporting end-user community
Defining and enforcing policies, procedures, and standards for database function
Ensuring data security, privacy, and integrity
Providing data backup and recovery services
Monitoring distribution and use of data in database
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

31. Summary (continued)
Technical role requires DBA to be involved in at least:
Evaluating, selecting, and installing DBMS
Designing and implementing databases and applications
Testing and evaluating databases and applications
Operating DBMS, utilities, and applications
Training and supporting users
Maintaining DBMS, utilities, and applications
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel

32. Summary (continued)
Development of data administration strategy is closely related to company’s mission and objectives
To help translate strategic plans into operational plans, DBA has access to an arsenal of database administration tools
Tools include data dictionary and computer-aided software engineering (CASE) tools
Some database administration functions are performed using Oracle RDBMS
Several tasks are performed by a typical Oracle DBA using Oracle database administrator tools
Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel