Understanding the Problem

The issue arises because employees without data in either the Dependents table or Address table are excluded from the results.

Explanation of Inner Join

An inner join returns only rows that have matching entries in both tables. If an employee does not have corresponding records in either Dependents or Address tables, they are excluded from the result set.

Solution

To ensure all employees are included, you should use a left join, which retains all rows from the Personal Information table even if there are no matches in the joined tables.

Why Other Options are Incorrect

A, B, and D: These describe left join scenarios, which do not cause the issue described in the question.

References

SAP SuccessFactors Query Designer Guide