Solution:Step 1: Understand INNER JOIN behaviorJOIN without specifying LEFT or RIGHT is INNER JOIN, which returns rows with matching keys in both tables.Step 2: Analyze the query resultThe query returns student names and grades only where Students.id matches Grades.student_id.Final Answer:A list of

[Solved] Given two tables:Students(id, name)Grades(student_id, grade)What will this query return?SELECT Students.name, Grades.grade FROM Students JOIN Grades ON Students.id = Grades.student_id; | SQL

SQL - INNER JOIN

Given two tables:
Students(id, name)
Grades(student_id, grade)
What will this query return?

SELECT Students.name, Grades.grade FROM Students JOIN Grades ON Students.id = Grades.student_id;

AAn error because of missing WHERE clause

BAll students with NULL grades included

COnly grades without student names

DA list of student names with their grades where student IDs match

Step-by-Step Solution

Solution:

Step 1: Understand INNER JOIN behavior
JOIN without specifying LEFT or RIGHT is INNER JOIN, which returns rows with matching keys in both tables.
Step 2: Analyze the query result
The query returns student names and grades only where Students.id matches Grades.student_id.
Final Answer:
A list of student names with their grades where student IDs match -> Option D
Quick Check:
INNER JOIN returns matching rows = A list of student names with their grades where student IDs match [OK]

Quick Trick: INNER JOIN returns only matching rows from both tables [OK]

Common Mistakes:

MISTAKES

Expecting all students even without grades
Thinking JOIN returns unmatched rows
Assuming WHERE is needed for JOIN condition

Master "INNER JOIN" in SQL

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More SQL Quizzes

Given two tables:

Step 1: Understand INNER JOIN behavior

Step 2: Analyze the query result

Final Answer:

Quick Check:

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