Intermediate Level 1. Explain the concept of incremental data refresh in Power BI and its benefits? Incremental data refresh in Power BI allows you to refresh only the new or modified data since the last refresh, rather than refreshing the entire dataset. This improves performance...

Intermediate Level 1. What is the role of Power Query in Power BI, and how does it facilitate data preparation? Power Query is used for data transformation and cleansing tasks within Power BI. It enables users to extract, transform, and load data from various sources,...

1. What is Power BI? Power BI is a business analytics tool developed by Microsoft that helps you turn multiple unrelated data sources into valuable and interactive insights. These data may be in the form of an Excel spreadsheet or cloud-based/on-premises hybrid data warehouses. You...