ATADESAB. BATLE CORDER DLEIF Lesson objectives In this lesson you will learn some basic database terms and learn how a database is created.

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Presentation transcript:

ATADESAB

BATLE

CORDER

DLEIF

Lesson objectives In this lesson you will learn some basic database terms and learn how a database is created.

What is a database? A database is a collection of information. You can have a very large one such as an encyclopaedia on a CD-ROM, or a much smaller one that you create yourself.

Examples of databases  Library catalogues  Amazon website  School details (results) in a school  Address book Try to think of at least two ideas.  What could you use a database for? Try to think of at least two ideas.  Discuss for 60 seconds

Database IDFirstnameSurnameDOBAgeSubject1Subject2Subject3 1MaralZarlykova12/07/200014PhysicsICTEnglish 2DinaAkhmetova4/05/200014ChemistryBiologyEnglish 3AuezSharipov02/05/199915PhysicsICTEnglish 4IlyasKabidenov04/11/199915ChemistryBiologyEnglish Records Primary Key Fields TABLE Column Row Cell

Datatypes

What datatype is: 1. Firstname 2. DOB 3. Age 4. ID IDFirstnameSurnameDOBAgeSubject1Subject2Subject3 1MaralZarlykova12/07/200014PhysicsICTEnglish 2DinaAkhmetova4/05/200014ChemistryBiologyEnglish 3AuezSharipov02/05/199915PhysicsICTEnglish 4IlyasKabidenov04/11/199915ChemistryBiologyEnglish

Database Definitions A database is a collection of information, that is organised and makes it easy to find things. A table stores all the information about a particular topic A record (tuple) is all of the data about one person or one thing. It is made up of fields. A field is a single piece of data about one person or one thing. Datatype sets what kind of information can be stored in a field, eg number, text. A Primary Key is a field within a database which enables every record to be uniquely identified.

Formative assessment Answer questions on Databases