Test Your Microsoft SQL Server RIGHT JOIN Knowledge with This Quiz

Q1

True / False

The RIGHT JOIN clause returns all rows from the right table and matching rows from the left table.

True False

RIGHT JOIN returns all rows from the right table and the matched rows from the left table. If there is no match, NULL values are returned for columns from the left table.

Q2

True / False

A RIGHT JOIN is equivalent to a LEFT JOIN if you switch the order of tables.

True False

Yes, a RIGHT JOIN is equivalent to a LEFT JOIN when you reverse the order of the tables in the query.

Q3

True / False

RIGHT JOIN will always include all rows from the right table, even if there are no matches in the left table.

True False

RIGHT JOIN includes all rows from the right table, and for those rows with no matching rows in the left table, NULL values will be included for columns from the left table.

Q4

True / False

The RIGHT JOIN operation cannot be used if the tables have no common columns.

True False

RIGHT JOIN requires a common column to join tables, so it cannot be used if there are no common columns between the tables.

Q5

True / False

RIGHT JOIN will return rows from the left table where there is no match in the right table.

True False

RIGHT JOIN does not return rows from the left table where there is no match in the right table; it only includes all rows from the right table with NULLs for non-matching rows from the left table.

Q6

True / False

Using RIGHT JOIN is less common than LEFT JOIN because it often requires reversing the order of tables in queries.

True False

RIGHT JOIN is less common as LEFT JOIN is more frequently used and is often more intuitive. However, RIGHT JOIN is useful when it better represents the desired result set or when reversing the order of tables improves readability.

Q7

True / False

RIGHT JOIN can be used to find records in the right table that do not have a matching record in the left table.

True False

RIGHT JOIN can be used to find records in the right table that do not have matching records in the left table by including NULL values in the result for non-matching rows.

Q8

True / False

RIGHT JOIN can be used in combination with other clauses like WHERE and GROUP BY.

True False

RIGHT JOIN can be combined with other clauses like WHERE and GROUP BY to filter and aggregate the results accordingly.

Q9

True / False

RIGHT JOIN can be used to merge two tables and eliminate duplicate rows.

True False

RIGHT JOIN is used to include all rows from the right table and matching rows from the left table, but it does not eliminate duplicate rows. To remove duplicates, you need to use DISTINCT or other methods.

Q10

True / False

The result of a RIGHT JOIN includes NULL values where there is no match in the right table.

True False

The result of a RIGHT JOIN includes all rows from the right table, and for rows in the right table that have no matching rows in the left table, NULL values are included for columns from the left table.

Q11

True / False

In a RIGHT JOIN, the rows from the left table are always included in the result set.

True False

In a RIGHT JOIN, all rows from the right table are included, and rows from the left table are included only if there is a match. If there is no match, NULL values are returned for columns from the left table.

Q12

True / False

RIGHT JOIN can be used to join more than two tables in a single query.

True False

RIGHT JOIN can be used to join more than two tables in a single query by chaining multiple RIGHT JOIN clauses together.

Q13

True / False

RIGHT JOIN requires that there is a matching column in both tables to perform the join operation.

True False

RIGHT JOIN requires a matching column in both tables to perform the join. The column specified in the ON clause is used to determine the rows to be joined.

Q14

True / False

RIGHT JOIN can be used to include all rows from the right table even if there is no match in the left table.

True False

RIGHT JOIN ensures that all rows from the right table are included in the result, even if there is no match in the left table. Non-matching rows from the left table are represented as NULLs.

Q15

True / False

RIGHT JOIN is often used to find missing records in the right table compared to the left table.

True False

RIGHT JOIN is used to include all rows from the right table and any matching rows from the left table, so it can be useful to find missing records in the right table where there are no corresponding entries in the left table.

Q16

Single Choice

Which query will include all records from the right table and matching records from the left table?

SQL Code

SELECT Employees.EmployeeName, Departments.DepartmentName
FROM Employees
RIGHT JOIN Departments
ON Employees.DepartmentID = Departments.DepartmentID;

SELECT Employees.EmployeeName, Departments.DepartmentName FROM Employees RIGHT JOIN Departments ON Employees.DepartmentID = Departments.DepartmentID; SELECT Employees.EmployeeName, Departments.DepartmentName FROM Employees LEFT JOIN Departments ON Employees.DepartmentID = Departments.DepartmentID; SELECT Employees.EmployeeName, Departments.DepartmentName FROM Employees INNER JOIN Departments ON Employees.DepartmentID = Departments.DepartmentID;SELECT Employees.EmployeeName, Departments.DepartmentName FROM Employees OUTER JOIN Departments ON Employees.DepartmentID = Departments.DepartmentID;

This query retrieves all rows from the Departments table and matching rows from the Employees table. Non-matching rows from Employees will have NULL values in the result.

Q17

Single Choice

In which scenario is RIGHT JOIN most useful?

When you need to include all records from the right table and matching records from the left table. When you need to include all records from the left table and matching records from the right table. When you need to exclude all records from both tables.When you need to include all records from both tables regardless of matching.

RIGHT JOIN is most useful when you need to include all records from the right table and only the matching records from the left table, especially when the right table is considered the primary table for inclusion.

Q18

Single Choice

Which query will retrieve all records from TableB and matching records from TableA?

SQL Code

SELECT TableA.Col1, TableB.Col2
FROM TableA
RIGHT JOIN TableB
ON TableA.Col1 = TableB.Col2;

SELECT TableA.Col1, TableB.Col2 FROM TableA RIGHT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA LEFT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA INNER JOIN TableB ON TableA.Col1 = TableB.Col2;SELECT TableA.Col1, TableB.Col2 FROM TableA FULL OUTER JOIN TableB ON TableA.Col1 = TableB.Col2;

The query retrieves all records from TableB and matching records from TableA. For rows in TableB with no matching rows in TableA, NULL values are included for columns from TableA.

Q19

Single Choice

Which clause in RIGHT JOIN specifies the column used to match rows between the tables?

ON WHERE JOINUSING

The ON clause specifies the columns used to match rows between the tables in a RIGHT JOIN query.

Q20

Single Choice

What is the result of RIGHT JOIN if there are no matching rows in the left table?

All rows from the right table with NULLs for non-matching rows in the left table. All rows from the left table with NULLs for non-matching rows in the right table. Only matching rows from both tables.No rows will be returned.

If there are no matching rows in the left table, the result of RIGHT JOIN will include all rows from the right table with NULL values in columns from the left table.

Q21

Single Choice

Which query will find all departments with or without employees?

SQL Code

SELECT Departments.DepartmentName, Employees.EmployeeName
FROM Departments
RIGHT JOIN Employees
ON Departments.DepartmentID = Employees.DepartmentID;

SELECT Departments.DepartmentName, Employees.EmployeeName FROM Departments RIGHT JOIN Employees ON Departments.DepartmentID = Employees.DepartmentID; SELECT Departments.DepartmentName, Employees.EmployeeName FROM Departments LEFT JOIN Employees ON Departments.DepartmentID = Employees.DepartmentID; SELECT Departments.DepartmentName, Employees.EmployeeName FROM Departments INNER JOIN Employees ON Departments.DepartmentID = Employees.DepartmentID;SELECT Departments.DepartmentName, Employees.EmployeeName FROM Departments FULL OUTER JOIN Employees ON Departments.DepartmentID = Employees.DepartmentID;

The query retrieves all departments and their corresponding employees, including departments that do not have any employees. For departments without employees, NULL values will be shown for the EmployeeName.

Q22

Single Choice

Which SQL clause can be combined with RIGHT JOIN to filter the results?

WHERE GROUP BY ORDER BYHAVING

The WHERE clause can be used with RIGHT JOIN to filter the results based on specific conditions.

Q23

Single Choice

Which query will include all rows from TableA, regardless of whether there are matches in TableB?

SQL Code

SELECT TableA.Col1, TableB.Col2
FROM TableA
RIGHT JOIN TableB
ON TableA.Col1 = TableB.Col2;

SELECT TableA.Col1, TableB.Col2 FROM TableA RIGHT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA LEFT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA INNER JOIN TableB ON TableA.Col1 = TableB.Col2;SELECT TableA.Col1, TableB.Col2 FROM TableA FULL OUTER JOIN TableB ON TableA.Col1 = TableB.Col2;

The query includes all rows from TableB and only matching rows from TableA. To include all rows from TableA, you would use LEFT JOIN instead.

Q24

Single Choice

RIGHT JOIN can be used to identify unmatched records in which table?

Left table Right table Both tablesNeither table

RIGHT JOIN is used to identify unmatched records in the left table by including all records from the right table and showing NULLs for non-matching rows from the left table.

Q25

Single Choice

Which query will return all rows from TableB even if there are no matches in TableA?

SQL Code

SELECT TableA.Col1, TableB.Col2
FROM TableA
RIGHT JOIN TableB
ON TableA.Col1 = TableB.Col2;

SELECT TableA.Col1, TableB.Col2 FROM TableA RIGHT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA LEFT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA INNER JOIN TableB ON TableA.Col1 = TableB.Col2;SELECT TableA.Col1, TableB.Col2 FROM TableA FULL OUTER JOIN TableB ON TableA.Col1 = TableB.Col2;

The query returns all rows from TableB and includes NULL values for columns from TableA where there are no matches.

Q26

Single Choice

RIGHT JOIN can be used with which types of SQL statements?

SELECT INSERT UPDATEDELETE

RIGHT JOIN can be used with SELECT statements to retrieve and merge data from two tables based on matching criteria.

Q27

Single Choice

Which of the following is the correct syntax for RIGHT JOIN?

SQL Code

SELECT TableA.Col1, TableB.Col2
FROM TableA
RIGHT JOIN TableB
ON TableA.Col1 = TableB.Col2;

SELECT TableA.Col1, TableB.Col2 FROM TableA RIGHT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA LEFT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA INNER JOIN TableB ON TableA.Col1 = TableB.Col2;SELECT TableA.Col1, TableB.Col2 FROM TableA FULL OUTER JOIN TableB ON TableA.Col1 = TableB.Col2;

The syntax provided is the correct format for performing a RIGHT JOIN between TableA and TableB.

Q28

Single Choice

Which SQL clause is used to filter the results of a RIGHT JOIN operation?

WHERE HAVING ORDER BYGROUP BY

The WHERE clause is used to filter the results of a RIGHT JOIN operation based on specified conditions.

Q29

Single Choice

What is the purpose of the RIGHT JOIN clause in SQL?

To include all rows from the right table and matching rows from the left table. To include all rows from the left table and matching rows from the right table. To include only matching rows from both tables.To exclude all rows from both tables.

RIGHT JOIN is used to return all rows from the right table and only matching rows from the left table. If there is no match, NULL values are included for columns from the left table.

Q30

Single Choice

Which SQL JOIN type returns all rows from both tables with matching rows from both tables, and includes NULL values where there is no match?

FULL OUTER JOIN LEFT JOIN INNER JOINRIGHT JOIN

FULL OUTER JOIN returns all rows from both tables, including rows with NULL values where there are no matches. RIGHT JOIN only includes all rows from the right table and matching rows from the left table.

Q31

Multiple Choice

Which columns are included in the result set of the following RIGHT JOIN query?

SQL Code

SELECT A.Col1, B.Col2
FROM TableA A
RIGHT JOIN TableB B
ON A.Col1 = B.Col2
WHERE A.Col3 IS NOT NULL;

Col1 from TableA Col2 from TableB Col3 from TableAAll columns from TableA and TableB

The query includes columns Col1 from TableA and Col2 from TableB. It returns all rows from TableB and matching rows from TableA where Col3 is not NULL.

Q32

Multiple Choice

Which result set is returned when performing a RIGHT JOIN between TableA and TableB with a condition that TableA.Col1 = TableB.Col2?

SQL Code

SELECT TableA.Col1, TableB.Col2
FROM TableA
RIGHT JOIN TableB
ON TableA.Col1 = TableB.Col2;

All rows from TableB Matching rows from TableA Only rows with matching TableA.Col1 and TableB.Col2Only rows with NULL values in TableA.Col1

The query includes all rows from TableB and matching rows from TableA. For rows in TableB that have no matching rows in TableA, NULL values are included for TableA columns.

Q33

Multiple Choice

Which query will return all rows from TableB and include NULLs for non-matching rows in TableA?

SQL Code

SELECT TableA.Col1, TableB.Col2
FROM TableA
RIGHT JOIN TableB
ON TableA.Col1 = TableB.Col2;

SELECT TableA.Col1, TableB.Col2 FROM TableA RIGHT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA LEFT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA INNER JOIN TableB ON TableA.Col1 = TableB.Col2;SELECT TableA.Col1, TableB.Col2 FROM TableA FULL OUTER JOIN TableB ON TableA.Col1 = TableB.Col2;

The query will include all rows from TableB and show NULLs for TableA.Col1 where there are no matching rows.

Q34

Multiple Choice

Which query will include all rows from TableA with or without matching rows in TableB?

SQL Code

SELECT TableA.Col1, TableB.Col2
FROM TableA
RIGHT JOIN TableB
ON TableA.Col1 = TableB.Col2;

SELECT TableA.Col1, TableB.Col2 FROM TableA RIGHT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA LEFT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA INNER JOIN TableB ON TableA.Col1 = TableB.Col2;SELECT TableA.Col1, TableB.Col2 FROM TableA FULL OUTER JOIN TableB ON TableA.Col1 = TableB.Col2;

RIGHT JOIN includes all rows from TableB and matching rows from TableA. To include all rows from TableA, LEFT JOIN should be used.

Q35

Multiple Choice

Which SQL clause should be used to find all records from TableB and their corresponding records from TableA?

SQL Code

SELECT TableA.Col1, TableB.Col2
FROM TableA
RIGHT JOIN TableB
ON TableA.Col1 = TableB.Col2;

SELECT TableA.Col1, TableB.Col2 FROM TableA RIGHT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA LEFT JOIN TableB ON TableA.Col1 = TableB.Col2; SELECT TableA.Col1, TableB.Col2 FROM TableA INNER JOIN TableB ON TableA.Col1 = TableB.Col2;SELECT TableA.Col1, TableB.Col2 FROM TableA FULL OUTER JOIN TableB ON TableA.Col1 = TableB.Col2;

The query includes all rows from TableB and corresponding records from TableA. RIGHT JOIN is used to include all rows from the right table (TableB) and matching rows from the left table (TableA).

Q36

Multiple Choice

In which scenario would a RIGHT JOIN be more appropriate than a LEFT JOIN?

When focusing on all rows from the right table. When focusing on all rows from the left table. When only rows with matches in both tables are needed.When excluding rows without matches in either table.

RIGHT JOIN is more appropriate when you need to include all rows from the right table and only matching rows from the left table. Use it when the right table is your primary focus and you want to ensure all its rows appear in the result.

Q37

Multiple Choice

Which of the following queries demonstrates a RIGHT JOIN operation?

SQL Code

SELECT A.Col1, B.Col2
FROM TableA A
RIGHT JOIN TableB B
ON A.Col1 = B.Col2
WHERE A.Col1 IS NULL;

SELECT A.Col1, B.Col2 FROM TableA A RIGHT JOIN TableB B ON A.Col1 = B.Col2 WHERE A.Col1 IS NULL; SELECT A.Col1, B.Col2 FROM TableA A LEFT JOIN TableB B ON A.Col1 = B.Col2; SELECT A.Col1, B.Col2 FROM TableA A INNER JOIN TableB B ON A.Col1 = B.Col2;SELECT A.Col1, B.Col2 FROM TableA A FULL OUTER JOIN TableB B ON A.Col1 = B.Col2;

This query shows all rows from TableB and matching rows from TableA. Rows in TableB without corresponding matches in TableA will show NULL values for TableA columns.

Q38

Multiple Choice

Which of the following will not be returned by the RIGHT JOIN operation?

Rows from the right table without a match in the left table. Rows from the left table without a match in the right table. Rows from the right table with matching rows from the left table.Rows from both tables where there is a match.

RIGHT JOIN includes all rows from the right table and matching rows from the left table. Rows from the left table that do not match rows in the right table are not returned.

Q39

Multiple Choice

What will be the result if RIGHT JOIN is used with a condition that never matches?

SQL Code

SELECT A.Col1, B.Col2
FROM TableA A
RIGHT JOIN TableB B
ON A.Col1 = B.Col2
WHERE A.Col1 IS NOT NULL;

All rows from the right table with NULLs for left table columns. No rows will be returned. Only rows with matching criteria in both tables.All rows from the left table and matching rows from the right table.

If the join condition never matches, all rows from the right table will be included with NULLs for columns from the left table. The WHERE clause may filter out all rows if it requires non-NULL values from the left table.

Q40

Multiple Choice

Which SQL JOIN type is used to retrieve all records from the right table and matching records from the left table, including NULLs for non-matching records from the left table?

RIGHT JOIN LEFT JOIN INNER JOINFULL OUTER JOIN

RIGHT JOIN retrieves all records from the right table and matching records from the left table. NULLs will be included in the result set for columns of the left table where there is no match.

Q41

Multiple Choice

What will the following query return? `SELECT A.Col1, B.Col2 FROM TableA A RIGHT JOIN TableB B ON A.Col1 = B.Col2;`

All rows from TableB and matching rows from TableA. All rows from TableA and matching rows from TableB. Only rows where TableA and TableB columns match.All rows from both TableA and TableB.

The query will return all rows from TableB and any matching rows from TableA. If TableB rows have no corresponding matches in TableA, NULLs will be shown for TableA columns.

Q42

Multiple Choice

What is the key difference between LEFT JOIN and RIGHT JOIN?

LEFT JOIN includes all rows from the left table, RIGHT JOIN includes all rows from the right table. LEFT JOIN includes only matching rows, RIGHT JOIN includes all rows. LEFT JOIN includes all rows from the right table, RIGHT JOIN includes all rows from the left table.LEFT JOIN includes matching rows from both tables, RIGHT JOIN excludes non-matching rows.

LEFT JOIN includes all rows from the left table and matching rows from the right table. RIGHT JOIN includes all rows from the right table and matching rows from the left table.

Q43

Multiple Choice

Given the query `SELECT A.Col1, B.Col2 FROM TableA A RIGHT JOIN TableB B ON A.Col1 = B.Col2;`, which table's rows will be fully included in the result?

TableB TableA Both TableA and TableBNeither TableA nor TableB

The result will include all rows from TableB, with NULL values in columns from TableA where there are no matches.

Q44

Multiple Choice

Which clause is used to specify the condition for a RIGHT JOIN operation?

ON WHERE GROUP BYORDER BY

The ON clause is used to specify the condition for the RIGHT JOIN operation, determining how rows from both tables should be matched.

Q45

Multiple Choice

Which of the following statements is true about RIGHT JOIN?

RIGHT JOIN includes all rows from the right table and matching rows from the left table. RIGHT JOIN includes all rows from the left table and matching rows from the right table. RIGHT JOIN only includes matching rows from both tables.RIGHT JOIN excludes rows with NULL values in the right table.

RIGHT JOIN includes all rows from the right table and any matching rows from the left table. It will show NULL values for left table columns if no match is found.

Microsoft SQL Server Database Quiz Questions