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Which advantage does JSON support in PostgreSQL provide over traditional relational columns?

easy📝 Conceptual Q2 of 15
PostgreSQL - JSON and JSONB
Which advantage does JSON support in PostgreSQL provide over traditional relational columns?
AIt enforces strict schema on data.
BIt disables indexing on data.
CIt allows storing nested and varying data structures.
DIt prevents data duplication automatically.
Step-by-Step Solution
Solution:

  1. Step 1: Compare JSON and relational columns

    Relational columns require fixed schema; JSON can store nested, varying structures.

  2. Step 2: Identify JSON flexibility benefit

    JSON allows storing complex, nested data without predefined schema.

  3. Final Answer:

    It allows storing nested and varying data structures. -> Option C

  4. Quick Check:

    JSON advantage = Nested, flexible data [OK]
Quick Trick: JSON stores nested data unlike fixed relational columns [OK]
Common Mistakes:
  • Assuming JSON enforces strict schema
  • Thinking JSON prevents duplication automatically
  • Believing JSON disables indexing

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