This introduction to database systems offers a comprehensive approach, focusing on database design, database use, and implementation of database applications and database management systems. KEY TOPICS: The first half of the book provides in-depth coverage of databases .
See Full PDF See Full PDFDatabase management systems are standard tools that enable the storage and retrieval of data within modern information systems. Units introducing database concepts are now an accepted part of most computer science courses. These introductory units tend to concentrate on the use of relational database systems. This advanced module, in contrast, deals with implementation aspects of relational systems as well as to the internal structure and performance issues related to DBMS and tests the candidates‟ knowledge of the current enhancements to relational database systems, object oriented database,datamining, data warehousing etc.. This course examines information about database system architecture, the system catalog, query processing and optimization, transaction processing concepts, concurrency control techniques, database recovery techniques, database security and authorization, object-Oriented and object-relational databases, distributed databases and client server architecture, Data Warehousing and Data Mining, and emerging technologies and applications
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CS6302 DBMS SHORT Lecturer hints
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Databases based on relational, object-oriented, and object-relational models represent significant advances in database technologies. In the context of general-purpose database management systems, the fundamentals of database models are examined. A historical perspective on the evolution of major database models is provided. The principal concepts underlying relational, object-oriented, and object-relational database models are presented with examples. Finally, a brief view of database federation issues is introduced and served as the foundation for computerized databases are essential and inseparable components of most of today’s information systems and data base technology.
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Earlier DBMS software package was one integrated system where large centralized mainframe computers were used. The modern DBMS packages are modular in design, with a client/server architecture where hundreds of distributed workstations and personal computers are connected via communications network. There are various types of servers like Web servers, database servers, file servers, application servers and so on. A client module will run on a user workstation or personal computer. Typically, application programs and user interfaces that access the database run in the client module. The client module handles user interaction and provides the user-friendly interfaces such as forms or menu based GUIs. The server module handles data storage, access, search and other functions. The study of data models, schemas and instances is very important to understand database systems. 2.2. DATA MODELS, SCHEMAS, AND INSTANCES 2.2.1 Data Model A data model is a collection of concepts that can be used to describe the structure of the database. It is a type of data abstraction that is used to provide conceptual representation of data. It uses logical concepts that can be easily understood. A data model is a set of concepts that can be used to describe the structure of a database, which includes data types, relationships and data constraints etc. It also includes a set of basic operations for specifying retrievals and updates on the database. Also dynamic aspect or behavior of a database application is included in a data model. Categories of Data Models Data models are categorized based on the types of concepts that they provide to describe the database structure.
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