Tableau Desktop Certified Professional — Question 66

Which statement accurately describes a join?

Answer options

• A. A combination of columns appended from different tables that have similar values
• B. A way to combine table columns in relational databases by using shared values
• C. A way to combine multiple Tableau workbooks using similar data sources
• D. A combination of rows appended from different tables that have the same column names

Correct answer: B

Explanation

Option B is correct because it accurately describes how joins work in relational databases by combining table columns based on shared values. Option A is incorrect as it focuses on columns rather than the actual mechanism of joining. Option C pertains to Tableau workbooks rather than database joins, making it irrelevant. Option D incorrectly highlights rows instead of columns, which misrepresents the concept of a join.