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A Power BI consultant helps define and implement a data governance strategy by ensuring the right data is accessible to the right users while maintaining data integrity and security. They assist in setting up role-based access control, auditing, and compliance frameworks that protect sensitive data....

Power BI developers optimize report performance by minimizing the complexity of data models, avoiding large datasets where unnecessary, and reducing the number of calculated columns. Efficient DAX expressions and filtering help improve query performance. Power BI developers also use data aggregatio...