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Mind map

Data Dictionary

Adam Riding IT A level English

Map content

Data Dictionary

  1. Table name

    • The name of the table (unique name)
  2. Field name

    • Each field is identified
  3. Field data type

    • The data type allocated to each field e.g string/boolean
  4. Field length

    • The number of characters allocated for the contents of the field
  5. Field default value

    • if a field has a default value that automatically appears on the creation of a new record
  6. Table security

    • Who access to write and edit etc values to and from the table
  7. Keys

    • Primary and foreign keys are identified
  8. Indexes

    • Any field which is indexed
  9. Relationships

    • Relationships between tables are identified

Information

Description
A level IT Mind Map on Data Dictionary, created by Adam Riding on 12/05/2017.
Created by
Adam Riding
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