![]() For instance, Role A is set to see region A’s data only against table A (sales data), Role B is set to view table B (budget data), which may contain all regions data and does not have row level security. ![]() Row-level security and object-level security cannot be combined from different roles.A better approach would be a configured relationship between tables A and C. The reason? If security is applied to table B, a query on table A cannot transit the relationships from table A to B, and from table B to C. For example, if table A joins to B, and B joins to C, you cannot secure table B. Table-level security cannot be set for a model if it breaks a relationship chain.Add comments and notes, use variables (delete unused ones), use user-friendly descriptive names, and be explicit with all references.ĭynamic row level security is achieved based on the username of who is currently logged on (USERNAME Function) or the CustomData property (CUSTOMDATA function) within a session. For best coding practices, keep all functions as legible as possible. Many DAX functions are available for use to create measures, calculated columns, or calculated tables. For this reason, from a performance standpoint, avoid calculated columns if they can be created as calculated measures instead. The fundamental difference between a calculated column and a measure is a calculated column evaluates values for each row in the column. On the other hand, calculated columns are always directly associated with tables. That said, a measure can also be independent of the table it is associated with. Sometimes, measures are created in fact tables. Measures can be added using standard aggregation functions like AVERAGE, COUNT, SUM, or even custom DAX formulas. It is very common that you will need to add calculated measures and columns and apply DAX functions to further transform source data per your business logic. You can hide or remove non-business fields such as table keys. For instance, customers are associated with orders – all customer information and activities are labeled and grouped under the same navigation node. ![]() It is critical that the model is presented in a business-oriented view to allow users to quickly understand what relevant information is available. Presentation/Navigation: Business users rely on the published metadata to do their business analysis. ![]()
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