Description: AddRelationship is a function in DAX (Data Analysis Expressions) that allows establishing a relationship between two tables in a data model. This function is fundamental for creating complex data models, as it enables analysts and developers to connect different data sources and perform deeper analyses. By creating relationships, data from multiple tables can be combined, facilitating the creation of richer and more meaningful reports and visualizations. The function adds a relationship in the context of the tables, meaning that it is possible to specify how the data relates to each other, whether through primary and foreign keys or through other columns containing relevant information. This ability to relate tables is essential for data analysis, as it allows users to perform calculations and gain insights that would otherwise be difficult to achieve. In summary, AddRelationship is a powerful tool in DAX that enhances analytical capabilities and data integrity in a data model.