How can Synthetic Keys be eliminated from a Qlik dataset?

Creating a concatenated key through aliasing field names is an effective way to eliminate Synthetic Keys in a Qlik dataset. Synthetic Keys arise when there are multiple tables in the data model sharing the same field names, which causes Qlik Sense to generate an automatic association between those fields. When this happens, it can lead to ambiguous or unintended associations that complicate the data model.

By defining a concatenated key, you combine fields from different tables into a single unique identifier. This not only clarifies the relationship between those tables but also removes the ambiguity that Synthetic Keys introduce. Aliasing field names during this process further ensures that the new concatenated key is recognized distinctly by Qlik Sense, preventing the formation of those unwanted synthetic associations.

The other approaches may not adequately address the issue. For instance, aggregating fields into one table might simplify the data model but does not necessarily eliminate the underlying problem of Synthetic Keys. Assigning a unique identifier to each row or only using primary keys can reduce redundancy but does not directly resolve the ambiguity created by similarly named fields across multiple tables. Therefore, focusing on creating a well-defined concatenated key is the most effective solution for eliminating Synthetic Keys.