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Sort the database words

Exercise and reference answers

Items
  1. Group
    Keys
    Item
    Primary key
  2. Group
    Keys
    Item
    Candidate key
  3. Group
    Keys
    Item
    Unique row
  4. Group
    Operators
    Item
    Select
  5. Group
    Operators
    Item
    Project
  6. Group
    Operators
    Item
    Union
  7. Group
    Models
    Item
    Relational
  8. Group
    Models
    Item
    Hierarchical
  9. Group
    Models
    Item
    NoSQL
Groups
  1. Item
    Keys
  2. Item
    Operators
  3. Item
    Models
Instructions
Drop each word onto keys, operators or models.

Explanation

_Source: OpenStax Introduction to Computer Science, Chapter 8, Data Management._
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