1. CS422 Principles of Database Systems Course Overview
Chengyu Sun
California State University, Los Angeles

2. Relational Database Management Systems (DBMS)
Queries
Relational
DBMS
Results
Efficient
ACID
SQL
Data

3. The Big Picture Database Management System (DBMS) DB DB DB Database
Database Objects
(or Schema Elements)
. Tables, views
. Indexes
. Functions and Stored procedures …

4. Relational Database students departments id name address 1 John
123 Main St. 2
Jane
456 State St.
departments
name
acronym
Computer Science cs
Mathematics
math

5. Schema
students id
name
address
departments
name
acronym

6. Schema Table schema Table schema Database Schema students departmentsid
name
address
departments
Table schema
name
acronym
Database Schema

7. Database Development Problem Tables Schema Design Attributes
Constraints
Problem
Database
Implementation
Indexes
Views
Procedures
Triggers
Privileges …
Performance Tuning
SQL
Data Access
Client Applications
Application
Development

8. Schema Design Entity-Relationship (ER) model Relational model
ER  Relational conversion
Normalization

9. Implementation and Access
SQL
Transactions
Stored procedures and triggers

10. DBMS Internals Queries Results Query Compiler and Optimizer
Execution Engine
Results
Index and Table Manager
Buffer Manager
Transaction
and
Concurrency Control
Logging
and
Recovery
Disk Manager
index files
system catalog
data files

11. Database Internals Query processing Disk access Record organization
Memory management
Concurrency control
Failure recovery
Indexes

12. Introduction to NoSQL Background Types of NoSQL databases
Usage of a NoSQL database (e.g. MongoDB)
Design and access
Comparison with relational DBMS