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DATA
BASE MANAGEMENT SYSTEM
Overview
of DBMS concepts, Data abstraction, Schemas and Instance Architecture of
DBMS, Data independence, Data models, Database languages, DBA, DB users,
Database system structure , Data modeling
using entity- relationship model, Mapping constraints, Weak
entities, External E-R features: specialization, generalization,
aggregation. Unit-IIRelational
model: Structure, Database schema
and concept of keys,
Integrity constraints relational Algebra :Select, Project, Join,
Division operations, Set
theoretic operations: Union, Intersection, Set difference, Cartesian-
product. Tuple relational calculus,
Domain relational calculus, Modification on DB, Concepts of views, View
definition , Update through views. Unit-IIIRelational
DB design :DB design considerations , Concepts of different forms of
dependencies and normalization , Normalization using functional
dependencies: 1NF,2NF,3NF,BCNF, Normalization using multi-model
dependecies:4NF join dependencies and 5NF. Domain-Key normal form. Unit-IVStorage
and file structure: Overview of physical storage media, RAID, Storage
access techniques, File organization, Data-dictionary .Indexing and
Hashing: Primary index, Multilevel index , B+ tree index files and B-tree
index files, Static hashing
and dynamic hashing , Hash file organization. Unit-VQuerying
on a DB using SQL: Basic query structures, The select-where-from clauses
, Rename operations, Set
operations, Aggregate functions, Nested sub queries, Derived relations,
Views , Delete, Insert and update operations,
Data-definition language,
indexes in SQL. Steps in query processing cost estimation, Selection
operation, Sorting , Join operation .Evaluation of expression
,Transformation of relational expression, Query optimization :Cost based
optimization and heuristic optimization. Books
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