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LECTURE 1 Introduction to Database design IITU, ALMATY, 2014 DATABASE DESIGN Lyudmila Kozina, senior lecturer

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Course Outline Objectives Learn the steps of database design process. Learn to design a database based on the user’s requirements. Learn the Structured Query Language.

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By the end of this course the students will be able to: design a database starting from the conceptual stage to the physical implementation of all the database objects; demonstrate the programming skills with SQL (Structured Query Language); use database management system (DBMS); think clearly and logically, as required for critical analysis of problems.

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What are your association?

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Today’s world Nowadays databases are everywhere, but we never see them. They are hidden behind the tools and services that we use everyday.

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Databases do most of the work in the information systems that we use every day Almost any business has a database So the need for database professionals in the IT job market will always stay strong

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What is a database? Database is an organized collection of data Databases have a structure

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Phone book’s DB

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Ordinary phone book vs. the DB Kate’s phone number Birthdays in January Who is owner of this number? Find all phone number of people with last name … …

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Database management systems Database management systems (DBMSs) are specially designed applications that interact with the user, other applications, and the database itself to capture and analyze data. A general-purpose database management system (DBMS) is a software system designed to allow the definition, creation, querying, update, and administration of databases.

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Database management systems PostgreSQL Microsoft SQL Server Oracle MySQL IBM DB2

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Database Design Modelling (subject area analisys) Decide which part of reality is represented in a database Agree on structure of the database before deciding on a particular implementation Conceptual Modelling - ER diagram Logical Modelling Physical Modelling (the physical organization of the data)

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What’s next? Next week lessons introduce the entity-relational model and how to design the schema of a database.

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Books Connolly, Thomas M. Database Systems: A Practical Approach to Design, Implementation, and Management / Thomas M. Connolly, Carolyn E. Begg.- Fifth.- United States of America: Pearson Education, 2010 Garcia-Molina, H. Database system: The Complete Book / Hector Garcia-Molina.- 2.- United States of America: Pearson Prentice Hall, 2009 Sharma, N. Database Fundamentals: A book for the community by the community / Neeraj Sharma, Liviu Perniu.- First Edition.- Canada, 2010