1. Fundamental of Database Systems 1401312-3By
Dr Abdullah Alzahrani د. عبدالله الزهراني
Part 1

2. Assessment توزيع الدرجات
20% Mid-Term written exam
10% Mid-Term practical exam
20% Project
50% Final Exam
20% اختبار نصفي نظري
10% اختبار نصفي عملي
20% مشروع
50% اختبار نهائي
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

3. Reference الكتاب المرجع
Fundamentals of Database Systems, 5th ed., by Elmasri and Navathe, Pearson International Edition,
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

4. Introduction مقدمه What is Database (DB)?
Motivations of using Databases
Database Models
What are Database Management Systems (DBMS)?
What DBMS will we use?
Some important terms
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

5. Introduction مقدمه What is a Database (DB)? Properties:
A database is a collection of related data. By data, we mean known facts that can be recorded and that have implicit meaning.
Properties:
A database represents some aspect of the real world
A database is a logically coherent collection of data with some inherent meaning
A database is designed, built, and populated with data for a specific purpose.
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

6. Introduction مقدمه What is the main component of a Database (DB)?
A table (Relation) – one or many
is a data structure for representing related Entities.
consists of columns (represent Attributes) and rows (represent Entities or tuples).
A column represents a same property of a same data type for all entities.
A row represents a set of properties of different data types for a specific entity
row
column
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

7. Introduction مقدمه Motivations of using Databases. Why ? Redundancy
storing the same data multiple times
Modification anomalies (updating – deleting - adding)
Problems with searching
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

8. Introduction مقدمه Dr Abdullah Alzahrani. aahzahrani@uqu.edu.sa
Fundamental of Database Systems
9/20/2016

9. Introduction مقدمه Dr Abdullah Alzahrani. aahzahrani@uqu.edu.sa
Fundamental of Database Systems
9/20/2016

10. Introduction مقدمه Data Models Relational Model Object-Oriented Model
Describes a structure of database. It is a set of relations definitions (relations schema)
Relational table is a set of tuples
Supported Relational Algebra
Object-Oriented Model
It is a logical model that is represented as a set of class definitions in OO language.
Entity-Relationship Model
High-level model which describes data as entities, attributes, and relationships
Others …..
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

11. Introduction مقدمه Data Models Relational Model
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

12. Introduction مقدمه Data Models Object-Oriented Model
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

13. Introduction مقدمه Dr Abdullah Alzahrani. aahzahrani@uqu.edu.sa
Fundamental of Database Systems
9/20/2016

14. Introduction مقدمه Data Models Entity-Relationship Model
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

15. Introduction مقدمه What are Database Management Systems (DBMS)?
A database management system (DBMS)is a collection of programs that enables users to create and maintain a database.
It facilitates the processes of:
Defining (specifying the data types, structures, and constraints of the data)
Constructing (storing the data on a storage that is controlled by the DBMS)
Manipulating (querying, updating, generating reports)
and sharing databases among various users and applications.
Other functions of DBMS is Protection and Maintenance.
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

16. Introduction مقدمه DBMS examples MySQL PostgreSQL Microsoft Access
SQL Server
Oracle
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

17. Introduction مقدمه DBMS consists of: Physical database Schema
Collection of files that contain the data content.
Schema
A specification of the information content of Physical database
Database engine
software that supports access to and modification of the contents of the databases.
Data Definition and Manipulation languages
Programming languages that support schema definition and database access
Ex: SQL (Structured Query Language)
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

18. Introduction مقدمه People who work with databases and DBMS :
Database designers
Create databases according to the client requirements.
Applications developers
Design and build applications which interact with databases to accomplish specific tasks.
End users
Mainly users who interacts with databases via interfaces of applications designed by Applications developers
Database administrators
Responsible for controlling access to databases, maintaining data accuracy and integrity, monitoring an improving performance.
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

19. Introduction مقدمه SQL (Structured Query Language)
The standard language for interaction with relational DBMS
Also, is the standard database language for DDL, DML, VDL, and SDL for relational DB
DDL (Data Definition Language)
A Language for specifying the conceptual schema of a DB
Examples: Create, alter, and drop schema
DML (Data Manipulation Language)
A Language manipulating the contents of a DB
Examples : DELETE, INSERT, SELECT, UPDATE
VDL (View Definition Language)
A Language that supports the definition of external views of a DB
Examples :CREATE VIEW
SDL (Storage Definition Language)
A Language that supports the definition of internal schema of a DB
Examples: Initrans, pctfree
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

20. Introduction مقدمه What DBMS will we use? http://dev.mysql.com/doc/
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

21. Introduction مقدمه Some important terms DB and DBMS
Table (Relation), column, and row
Redundancy and Modification anomalies
Data Models: Relational Model, Logical, Object-Oriented, and Entity- Relationship (ER)
SQL
DDL, DML, VDL, and SDL
Database designers, Applications developers, End User, Database administrators
Dr Abdullah Alzahrani.
Fundamental of Database Systems
9/20/2016

22. End Introduction مقدمه Dr Abdullah Alzahrani. aahzahrani@uqu.edu.sa
Fundamental of Database Systems
9/20/2016

23. Introduction مقدمه Dr Abdullah Alzahrani. aahzahrani@uqu.edu.sa
Fundamental of Database Systems
9/20/2016