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What is the main purpose of using composite types in PostgreSQL?

easy📝 Conceptual Q1 of 15
PostgreSQL - Advanced Features
What is the main purpose of using composite types in PostgreSQL?
ATo store large binary data efficiently
BTo create indexes on multiple columns automatically
CTo group multiple related fields into a single data type
DTo enforce unique constraints on multiple columns
Step-by-Step Solution
Solution:

  1. Step 1: Understand composite types

    Composite types allow grouping several fields into one structured type.

  2. Step 2: Identify the main purpose

    This grouping helps to treat related data as a single unit in tables or functions.

  3. Final Answer:

    To group multiple related fields into a single data type -> Option C

  4. Quick Check:

    Composite types = Group related fields [OK]
Quick Trick: Composite types group fields like a mini table row [OK]
Common Mistakes:
  • Confusing composite types with indexes
  • Thinking composite types enforce uniqueness
  • Assuming composite types store binary data

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