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Identify the issue in this PostgreSQL query:

medium📝 Debug Q6 of 15
PostgreSQL - Common Table Expressions
Identify the issue in this PostgreSQL query:
WITH cte AS (SELECT id, name FROM users) SELECT * FROM cte WHERE id;
ACTE is missing an alias
BThe WHERE clause lacks a condition after 'id'
CSELECT statement is missing FROM clause
DCTE cannot be used without INSERT
Step-by-Step Solution
Solution:
  1. Step 1: Analyze the WHERE clause

    The WHERE clause ends with 'id' but lacks a comparison or condition.
  2. Step 2: Check other parts

    CTE is correctly defined and SELECT uses FROM cte properly.
  3. Final Answer:

    The WHERE clause lacks a condition after 'id' -> Option B
  4. Quick Check:

    WHERE must have a valid condition [OK]
Quick Trick: WHERE clause requires a complete condition [OK]
Common Mistakes:
  • Leaving WHERE clause incomplete
  • Assuming CTE needs alias in this context

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