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Database Concepts — COMPUTER APPLICATIONS STD 10 — Question

CBSE BoardEnglish MediumSTD 10COMPUTER APPLICATIONSDatabase Concepts1 Mark
MCQ
Key field is a unique identifier for each record. It is defined in the form of
  • A
    rows
  • ✓
    columns
  • C
    tree
  • D
    query
✓

Answer

Correct option: B.
columns
(b) Key is a data item that allows you to uniquely identify individual occurrences which is defined as the column or set of columns.

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