[Solved] Identify the error in the following SQL query using multiple CTEs:WITH cte1 AS (SELECT id, name FROM users) SELECT * FROM cte1; WITH cte2 AS (SELECT id FROM orders) SELECT * FROM cte2; | SQL

SQL - Common Table Expressions (CTEs)

Identify the error in the following SQL query using multiple CTEs:

WITH cte1 AS (SELECT id, name FROM users) SELECT * FROM cte1; WITH cte2 AS (SELECT id FROM orders) SELECT * FROM cte2;

ACTEs cannot select from tables

BCTEs must be named with different names

CMissing JOIN condition between cte1 and cte2

DMultiple WITH clauses are not allowed in one query

Step-by-Step Solution

Solution:

Step 1: Review CTE syntax rules
Only one WITH clause is allowed per query; multiple CTEs must be separated by commas inside one WITH.
Step 2: Identify the error in the query
The query uses two separate WITH clauses, which is invalid syntax.
Final Answer:
Multiple WITH clauses are not allowed in one query -> Option D
Quick Check:
Only one WITH clause per query = A [OK]

Quick Trick: Use one WITH clause with commas for multiple CTEs [OK]

Common Mistakes:

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