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  1. Describe the principle functions of a database administrator. Discuss how the role of the database administrator might be partitioned among a group of people in a larger organisation. Discuss the issues in tuning database systems, and describe examples of typical tools used in the process of database administration. Introduction.

  2. 10 wrz 2010 · What is a database? A database is a collection of structured data. A database captures an abstract representation of the domain of an application. Typically organized as “records” (traditionally, large numbers, on disk) and relationships between records.

  3. 1. Introduction: Basics of Database Administration 1-2 Objectives After completing this chapter, you should be able to: • enumerate tasks of the database administrator. • create users in Oracle. • explain the structure of the Oracle Data Dictionary. • formulate queries against data dictionary tables.

  4. Database: A very large, integrated collection of data. Examples: databases of customers, products,... A database usually models (some part of) a real-world enterprise. A Database Management System (DBMS) is a software package designed to store and manage databases.

  5. A data model is a collection of concepts for describing data. A schema is a description of a particular collection of data, using the a given data model. The relational model of data is the most widely used model today. Main concept: . relation, basically a table with rows and columns.

  6. There are two new chapters on recent advances in database systems and big data processing; one new chapter (Chapter 24) covers an introduction to the newer class of database systems known as NOSQL databases, and the other new chapter (Chapter 25) covers technologies for processing big data, including MapReduce and Hadoop.

  7. Data administration is that function concerned with the management, planning and documentation of the data resource of some organisation (Gillenson, 1982). Data administration is concerned with the management of an organisation's meta-data, that is, data about data.

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