Database Management Systems Notes for 3rd Semester B.E. Computer Science And Engineering Students. As per Anna university syllabus of regulation 2013 as well, we provided important 2 marks and 16 marks questions to answer for all units. Here you will get notes for all units.
Database Management Systems Notes
Database Management Systems Notes for free download. Computer engineering is a discipline that integrates several fields of electrical engineering and computer science required to develop computer hardware and software. Database management system (DBMS) is a collection of interrelated data and a set of programs to access those data. The relational algebra is a procedural query language. It consists of a set of operations that take one or two relations as input and produce a new relation as output.
UNIT I INTRODUCTION TO DBMS
File Systems Organization – Sequential, Pointer, Indexed, Direct – Purpose of Database System-Database System Terminologies-Database characteristics- Data models – Types of data models –Components of DBMS- Relational Algebra. LOGICAL DATABASE DESIGN: Relational DBMS -Codd’s Rule – Entity-Relationship model – Extended ER Normalization – Functional Dependencies,Anomaly- 1NF to 5NF- Domain Key Normal Form – Denormalization
UNIT II SQL & QUERY OPTIMIZATION
SQL Standards – Data types – Database Objects- DDL-DML-DCL-TCL-Embedded SQL-Static VsDynamic SQL – QUERY OPTIMIZATION: Query Processing and Optimization – Heuristics and Cost Estimates in Query Optimization.
UNIT III TRANSACTION PROCESSING AND CONCURRENCY CONTROL
Introduction-Properties of Transaction- Serializability- Concurrency Control – Locking Mechanisms-Two Phase Commit Protocol-Dead lock.
UNIT IV TRENDS IN DATABASE TECHNOLOGY
Overview of Physical Storage Media – Magnetic Disks – RAID – Tertiary storage – File Organization –Organization of Records in Files – Indexing and Hashing –Ordered Indices – B+ tree Index Files – B tree Index Files – Static Hashing – Dynamic Hashing – Introduction to Distributed Databases- Client server technology- Multidimensional and Parallel databases- Spatial and multimedia databases- Mobile and web databases- Data Warehouse-Mining- Data marts.
UNIT V ADVANCED TOPICS
DATABASE SECURITY: Data Classification-Threats and risks – Database access Control – Types of Privileges –Cryptography- Statistical Databases.- Distributed Databases-Architecture-Transaction Processing-Data Warehousing and Mining-Classification-Association rules-Clustering-Information Retrieval- Relevance ranking-Crawling and Indexing the Web- Object Oriented Databases-XML Databases.
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CSE Lecture Notes
CSE Lecture Notes all the semester are available here. Computer software Engineers develop, design, and test software. Some software engineers design, construct, and maintain computer programs for companies.