15 1 Chapter 15 Database Administration

15 2 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel Learning Objectives That data are a valuable business asset that requires careful management Why and how the database plays a critical role in an organization That the introduction of a DBMS has important technological, managerial, and cultural organizational consequences

15 3 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel Learning Objectives What the database administrator’s managerial and technical roles are About several database administration tools About various database administration strategies How various database administration technical tasks are performed with Oracle

15 4 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel Data as a Corporate Asset

15 5 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel 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 a different view of the data and support required level of decision making

15 6 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel A Summary of DBA Activities

15 7 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel Desired DBA Skills

15 8 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel DBA Activities and Services

15 9 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel Database Administration Tools Two main types of data dictionaries: –Integrated –Standalone Main function: store description of all objects that interact with the database

15 10 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel Database Administration Tools ( continued ) Possible to manage use and allocation of all organization’s information, regardless of whether it has roots in database data Metadata stored in data dictionary are often basis for monitoring database use and assignment of access rights to database users

15 11 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel Developing a Database 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

15 12 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel Developing a Database Administration Strategy ( continued ) Information engineering –Translates strategic company goals into the data and applications that will help company achieve those goals –Output of the IE process is an information systems architecture that serves as basis for planning, development, and control of future information systems

15 13 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel Summary Data management is critical for any organization Data should be treated as corporate asset with monetary value DBMS is most commonly used electronic tool for corporate data management Impact of the DBMS on the organization’s managerial and cultural framework must be carefully examined Data administration function was developed in response to changes in data management fostered by technological advances in computer systems

15 14 Database Systems: Design, Implementation, & Management, 6 th Edition, Rob & Coronel Summary ( continued ) Database administrator (DBA) is responsible for corporate database management Broader data management activity is handled by data administrator (DA) DA is more managerially oriented than the more technically oriented DBA Development of data administration strategy is closely related to the company’s mission and objectives Implementing the overall company strategy is a crucial process influenced by managerial, technological, and cultural issues