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What is the main reason to join more than two tables in a SQL query?

easy📝 Conceptual Q1 of 15
SQL - Advanced Joins
What is the main reason to join more than two tables in a SQL query?
ATo delete data from multiple tables at once
BTo combine data from multiple related tables into one result
CTo create new tables automatically
DTo speed up database backups
Step-by-Step Solution
Solution:

  1. Step 1: Understand the purpose of JOINs

    JOINs combine rows from two or more tables based on related columns.

  2. Step 2: Recognize the use of multiple JOINs

    Joining more than two tables allows combining data from several related tables into one result set.

  3. Final Answer:

    To combine data from multiple related tables into one result -> Option B

  4. Quick Check:

    Purpose of joining multiple tables = Combine data [OK]
Quick Trick: Joining combines related data from multiple tables [OK]
Common Mistakes:
MISTAKES
  • Thinking JOIN deletes or creates tables
  • Confusing JOIN with backup or delete operations

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