[Solved] Find the mistake in this query:SELECT e.name, d.dept_name FROM Employees e INNER JOIN Departments d ON e.department_id = d.dept_id; | SQL

SQL - INNER JOIN

Find the mistake in this query:

SELECT e.name, d.dept_name FROM Employees e INNER JOIN Departments d ON e.department_id = d.dept_id;

AINNER JOIN should be LEFT JOIN

BMissing table alias for Employees

CColumn name 'department_id' does not match 'dept_id'

DNo mistake, query is correct

Step-by-Step Solution

Solution:

Step 1: Check join condition columns
The query joins on e.department_id and d.dept_id, but these columns likely do not match because of different names.
Step 2: Identify mismatch causing no join
Joining on mismatched columns causes no matches or errors; correct column should be consistent.
Final Answer:
Column name 'department_id' does not match 'dept_id' -> Option C
Quick Check:
Join columns must match in name and meaning [OK]

Quick Trick: Join columns must have matching names and data [OK]

Common Mistakes:

MISTAKES

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