[Solved] Identify the error in this non-equi join query:SELECT e.name, s.salary_grade FROM Employees e JOIN SalaryGrades s ON e.salary => s.min_salary AND e.salary <= s.max_salary; | SQL

SQL - Advanced Joins

Identify the error in this non-equi join query:

SELECT e.name, s.salary_grade
FROM Employees e
JOIN SalaryGrades s ON e.salary => s.min_salary AND e.salary <= s.max_salary;

AThe join condition should use OR instead of AND.

BThe operator => is invalid; it should be >=.

CThe table alias 's' is missing in the SELECT clause.

DThe query is missing a WHERE clause.

Step-by-Step Solution

Solution:

Step 1: Check operators in join condition
The operator => is not valid SQL; the correct operator for 'greater than or equal' is >=.
Step 2: Verify other parts
AND is correct to check salary between min and max. Aliases and WHERE clause are not errors here.
Final Answer:
The operator => is invalid; it should be >=. -> Option B
Quick Check:
Use >=, not => for greater or equal [OK]

Quick Trick: Use >=, not =>, for greater or equal operator [OK]

Common Mistakes:

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