note1-introduction&architecure

note1-introduction&architecure - CSc134...

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1 CSc 134 Database Management and File  Organization   1. Introduction to Database  Management Systems Ying Jin Computer Science Department California state University, Sacramento
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2 Database Management  Systems Database A database is a collection of related data  [Elmasri 06]. Database management System (DBMS) A database management system is a  collection of programs that enables users  to create and maintain a database [Elmasri  06].
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3 File Processing System  versus DBMS Redundancy Duplication, Waste Storage, Inconsistent Security Beyond that provided by operating system Authorized Access Self-Describing Stores data, definition of database structure and constraints  Integrity Constraints Data type, relationships, uniqueness
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4 File Processing System  versus DBMS (Cont.) Data abstraction A change in a file system requires a change in the program. A conceptual representation of data without details of 
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This note was uploaded on 10/26/2009 for the course CSC CSC 134 taught by Professor Jinyin during the Spring '09 term at CSU Sacramento.

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note1-introduction&architecure - CSc134...

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