[Solved] Which of the following is the correct syntax to create a basic index on column email in PostgreSQL? — Ans: CREATE INDEX idx_email ON users (email); | PostgreSQL

PostgreSQL - Indexing Strategies

Which of the following is the correct syntax to create a basic index on column email in PostgreSQL?

ACREATE INDEX ON users email;

BCREATE INDEX idx_email ON users (email);

CMAKE INDEX idx_email ON users email;

DINDEX CREATE idx_email users (email);

Step-by-Step Solution

Solution:

Step 1: Recall PostgreSQL index creation syntax
The correct syntax starts with CREATE INDEX, followed by index name, ON table name, and column list in parentheses.
Step 2: Match syntax to options
CREATE INDEX idx_email ON users (email); matches the correct syntax exactly; others have wrong keywords or missing parentheses.
Final Answer:
CREATE INDEX idx_email ON users (email); -> Option B
Quick Check:
CREATE INDEX ... ON table (column) [OK]

Quick Trick: Use CREATE INDEX index_name ON table (column) [OK]

Common Mistakes:

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Which of the following is the correct syntax to create a basic index on column email in PostgreSQL?