Q1
True / FalseDoes the INNER JOIN keyword only return rows when there is a match in both tables?
INNER JOIN returns rows when there is at least one match in both tables.
Q2
True / FalseCan an INNER JOIN be used to join more than two tables?
INNER JOIN can be used to join multiple tables in a single query.
Q3
True / FalseIs it mandatory to have a common column between tables for an INNER JOIN?
INNER JOIN requires a common column between the tables to join them.
Q4
True / FalseDoes the INNER JOIN keyword return unmatched rows from both tables?
INNER JOIN does not return unmatched rows from both tables; it only returns matched rows.
Q5
True / FalseCan INNER JOIN result in a Cartesian product if there is no ON clause?
Without an ON clause, INNER JOIN can result in a Cartesian product.
Q6
True / FalseDoes an INNER JOIN automatically eliminate duplicate rows?
INNER JOIN does not automatically eliminate duplicate rows.
Q7
True / FalseIs it possible to use a WHERE clause along with an INNER JOIN?
A WHERE clause can be used to filter the results of an INNER JOIN.
Q8
True / FalseCan you join tables using an INNER JOIN based on a non-primary key column?
INNER JOIN can be based on any column, not necessarily a primary key.
Q9
True / FalseDoes INNER JOIN return null values from columns of joined tables?
INNER JOIN does not return rows with null values in the joined columns.
Q10
True / FalseCan INNER JOIN be used with aliases for table names?
Table aliases can be used to simplify queries with INNER JOIN.
Q11
True / FalseDoes the INNER JOIN keyword support joining tables from different databases?
INNER JOIN can be used to join tables from different databases if the database system supports it.
Q12
True / FalseIs the order of tables in an INNER JOIN clause important for the result set?
The order of tables in INNER JOIN does not affect the result set.
Q13
True / FalseCan INNER JOIN be used with aggregate functions?
INNER JOIN can be combined with aggregate functions to produce grouped results.
Q14
True / FalseIs it possible to use INNER JOIN in a subquery?
INNER JOIN can be used within a subquery.
Q15
True / FalseDoes an INNER JOIN create a temporary table with combined results?
INNER JOIN does not create a temporary table but combines results in the output.
Q39
Multiple ChoiceWhich query retrieves all orders with their customer names and product names using INNER JOIN?
SQL Code
SELECT Orders.OrderID, Customers.CustomerName, Products.ProductName
FROM Orders
INNER JOIN Customers
ON Orders.CustomerID = Customers.CustomerID
INNER JOIN OrderDetails
ON Orders.OrderID = OrderDetails.OrderID
INNER JOIN Products
ON OrderDetails.ProductID = Products.ProductID;
The query retrieves all orders with their customer names and product names using INNER JOIN to match CustomerID, OrderID, and ProductID.