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

PostgreSQL - Performance Tuning

Which of the following is the correct way to create an index on the column email in PostgreSQL?

ACREATE INDEX idx_email ON users (email);

BMAKE INDEX idx_email ON users (email);

CCREATE INDEX ON users email;

DINDEX CREATE idx_email users (email);

Step-by-Step Solution

Solution:

Step 1: Recall the syntax for creating an index
The correct syntax is CREATE INDEX index_name ON table_name (column_name);.
Step 2: Match the syntax with options
CREATE INDEX idx_email ON users (email); matches the correct syntax exactly.
Final Answer:
CREATE INDEX idx_email ON users (email); -> Option A
Quick Check:
CREATE INDEX syntax = CREATE INDEX idx_email ON users (email); [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 way to create an index on the column email in PostgreSQL?