Some Facts about Databases Key WordsData TypesCoding.

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Presentation transcript:

Some Facts about Databases Key WordsData TypesCoding

Key Words Field a single piece of information eg Gender, Surname Record the collection of fields stored about one person or thing Primary Key the field that uniquely identifies a record eg Student Number HomeData TypesCodingQuestions

Which word best describes this? a) Field b) Record c) Primary key Questions XX Next QuestionKey Words

Which word best describes this? a) Field b) Record c) Primary key Questions X X Next QuestionKey Words

Which word best describes this? a) Field b) Record c) Primary key Questions X HomeData TypesCodingKey Words

Data Types Each field stores data of a particular Data Type eg Number, Text, Date, Currency Some Key Facts: –Text Data Type can store Letters and Numbers = Alphanumeric –Alphabetic means letters only. Access does not have an alphabetic data type. HomeMore Data TypesCodingKey WordsData Types Questions

Data Types used in Access Text Letters and Numbers (Alphanumeric) Number Numbers Currency Numbers with 2 decimal places (for money) Date/Time For dates - prevents silly dates eg 63 August HomeData Types QuestionsCodingKey Words

Which word best describes this data? a) Alphabetic b) Alphanumeric c) Numeric Questions X X Data TypesNext Question

Which word best describes this data? a) Alphabetic b) Alphanumeric c) Numeric Questions X X Data TypesNext Question

Which word best describes this data? a) Alphabetic b) Alphanumeric c) Numeric Questions X X Data TypesCoding

All about Coding Coding means using a shortened form when entering data eg L = Large M = Medium S = Small Coding means you don’t have to type in so much data Home