[Solved] Identify the error in this query using NTILE:SELECT id, NTILE(0) OVER (ORDER BY score) AS group_num FROM players; | SQL

SQL - Window Functions Fundamentals

Identify the error in this query using NTILE:

SELECT id, NTILE(0) OVER (ORDER BY score) AS group_num FROM players;

ANTILE requires PARTITION BY clause.

BNTILE cannot have 0 as argument; it must be a positive integer.

CORDER BY clause is missing inside OVER().

DThe alias <code>group_num</code> is not allowed.

Step-by-Step Solution

Solution:

Step 1: Check NTILE argument validity
NTILE requires a positive integer greater than zero to define groups.
Step 2: Analyze the query
NTILE(0) is invalid and causes an error; ORDER BY is present, PARTITION BY is optional, alias is valid.
Final Answer:
NTILE cannot have 0 as argument; it must be a positive integer. -> Option B
Quick Check:
NTILE argument > 0 required = NTILE cannot have 0 as argument; it must be a positive integer. [OK]

Quick Trick: NTILE argument must be positive integer > 0 [OK]

Common Mistakes:

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