Given the following customer and order tables: Which of the following describes the number of rows and columns of data that would be present after performing an INNER JOIN of the tables?

The correct answer is A. Five rows, eight columns. Inner join returns only the rows where there is a match between the two tables in the specified join condition. In this case, the join condition would be based on the "Customer ID" column, which is present in both tables. So, the inner join of the two tables would result in 5…

Data Concepts and Environments

Question

Given the following customer and order tables:

Which of the following describes the number of rows and columns of data that would be present after performing an INNER JOIN of the tables?

Exhibits

Options

AFive rows, eight columns
BSeven rows, eight columns
CEight rows, seven columns
DNine rows, five columns

How the community answered

(27 responses)

A
85% (23)
B
4% (1)
C
4% (1)
D
7% (2)

Explanation

Inner join returns only the rows where there is a match between the two tables in the specified join condition. In this case, the join condition would be based on the "Customer ID" column, which is present in both tables. So, the inner join of the two tables would result in 5 rows where there is a match in the "Customer ID" column, and each row would have 8 columns (all columns from

Topics

#SQL#Database Joins#Relational Databases#Data Querying

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