What is power query? / Why it is imp for Data Analysis? / How to use power query step by step / Use of Power Query in Power BI
What is power query? Power Query is a data transformation and extraction tool that can be used with various sources of data, including Excel spreadsheets, databases, and web pages. It allows you to collect data from multiple sources and combine them into a single data set that can be easily analyzed. With Power Query, you can clean and transform data by applying various operations such as filtering, sorting, and merging. You can also split columns, remove duplicates, and change data types. These operations help to clean and organize the data, making it easier to work with. Power Query has a user-friendly interface that allows you to easily build queries by selecting the data sources and applying the desired transformations. Once the query is built, you can refresh it to update the data with any changes made to the source. Power Query is also integrated with other Microsoft tools such as Excel and Power BI, which allows you to easily import and analyze data in these tools....