The Employees and InternEmp tables represent the same logical entity: company personnel. They share a nearly identical structure, with fields for ID, name, title, and hire date. According to data modeling best practices, when two or more tables contain the same kind of data, they should be combined into a single table. The correct operation for this is concatenation, which appends the rows of one table to another. This creates a single, unified dimension table for all employees, simplifying the data model, preventing potential synthetic keys, and enabling straightforward analysis across both permanent and temporary staff. The Qlik Sense Data Manager is designed to perform this operation, often automatically.

A. Create a concatenated key to associate the Employees and InternEmp tables

A concatenated (or composite) key is used to form a unique identifier from multiple fields for linking tables, not for merging two lists of the same entity.

C. Force an association between the InternEmp and the Orders tables

This is incorrect as there is no logical basis for directly associating interns with orders without first integrating the employee data into a single, coherent dimension.

D. Create an association between the EmpID and EmployeelD fields

This is a common pitfall. While the Data Manager recommends this association based on field name similarity, it is logically incorrect. EmpID and EmployeeID are primary keys for two distinct sets of people. Associating them would incorrectly link unrelated individuals and create a flawed data model.

1. Qlik Sense for Windows Help, "Concatenating tables in Data Manager": This official documentation states, "When you add two or more tables that have the same number of fields and identical field names, Qlik Sense automatically concatenates them into a single table." This confirms that concatenation is the intended and standard procedure for the scenario described. The document further explains how to manually align fields to force concatenation if they are not identical, which would be necessary for EmpID and EmployeeID.

2. Qlik Sense for Windows Help, "Best practices for data modeling": This guide emphasizes creating simple and logical data structures, such as star schemas. Concatenating the two employee tables into a single Employee dimension table aligns with this best practice. It avoids the creation of a "snowflake" or a more complex, incorrect association between two parts of the same dimension. Section: "Keep your data model simple".