Multiple choice technology programming languages

The tables can be combined together in SQL using the concept of

  1. Normalization

  2. Indexing

  3. Sequence

  4. Join
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

JOIN is the SQL mechanism for combining rows from two or more tables based on a related column between them. Normalization is about organizing tables to reduce redundancy, indexing improves query performance, and sequences generate unique numbers - none of these combine table data. JOINS (INNER, LEFT, RIGHT, FULL) are the fundamental SQL operation for merging data from multiple tables.

Keep practicing — related questions