What Is the Output Data Type Match in Qlik Sense?


Heather Bennett

In Qlik Sense, the output data type match is an important concept that determines how data is treated and displayed. Understanding this concept is crucial for efficient data analysis and visualization in Qlik Sense.

What is Output Data Type Match?

The output data type match refers to how Qlik Sense automatically assigns a data type to the result of an expression or a calculation. It ensures that the data type of the output matches the expected data type based on the context in which it is used.

Qlik Sense uses a set of rules to determine the output data type match. These rules take into account factors such as the input data types, operators used, and the expected result. By following these rules, Qlik Sense ensures consistency in how expressions are evaluated and displayed.

Rules for Output Data Type Match

The following are some of the important rules that govern the output data type match in Qlik Sense:

  • Numeric Operations: When performing numeric operations like addition, subtraction, multiplication, or division on numeric values, Qlik Sense ensures that the result is always a numeric value.
  • Concatenation: When concatenating strings or combining string values with other data types, Qlik Sense treats the result as a string.
  • Date and Time Operations: When performing date and time operations, Qlik Sense automatically converts date and time values into numeric representations. The result will be a numeric value.

Data Type Conversion

In some cases, it may be necessary to explicitly convert one data type to another. This can be done using functions like NUM(), TEXT(), DATE(), etc. These functions allow you to convert values from one data type to another based on your requirements.

It is important to note that improper data type conversion can lead to unexpected results or errors. Therefore, it is recommended to use appropriate data type conversion functions and handle any potential issues that may arise.

Why is Output Data Type Match Important?

The output data type match plays a crucial role in data analysis and visualization in Qlik Sense. It ensures that the results of expressions are displayed correctly and consistently, allowing users to make accurate interpretations and decisions based on the data.

By understanding the output data type match, users can effectively manipulate and transform their data using expressions. This enables them to perform complex calculations, create meaningful visualizations, and gain valuable insights from their data.


The output data type match is an essential concept in Qlik Sense that determines how expressions are evaluated and displayed. By following a set of rules, Qlik Sense ensures that the output data type matches the expected result based on the context. Understanding this concept allows users to effectively analyze and visualize their data, enabling better decision-making.

Note: Proper handling of data types and utilizing appropriate functions for conversion is crucial for accurate results in Qlik Sense.

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