Microsoft Power BI is a business analytics solution that provides tools to aggregate, analyse, visualise and share data. It is a collection of software services, applications and connectors that enable you to fetch coherent and interactive insights from your unrelated sources of data.
The uses of Power BI include: 1. It allows asking questions in layman language and replies using the Q&A function. 2. Power BI enables users to create personalised dashboards allowing them to see all the data in a single view and monitor their most important data with the help of business applications. 3. Users build robust and reusable data models with the use of SQL Server analysis services on-premises and Azure analysis services in the cloud. 4. It provides the ability to connect to almost all applications or data sources, no matter where these resources exist – in the cloud or on-premises. Examples include Excel spreadsheets, Mail Chimp, GitHub, Share Point and Google Analytics. 5. Power BI doesn't require much training. An API key is first created and plugged in the software. Power BI then easily integrates with Microsoft systems such as Office 365 and using it comes naturally to any user. 6. Power BI enables analysis of the most recent data and allows businesses to take decisions
Power BI allows you to view, analyse and share Excel files on the web. Excel when combined with Power BI, provides you with broad data analytics and visualization capabilities.
Only the Power BI Desktop is free. The other two types i.e. Power BI Pro and Power BI Premium are chargeable. Power BI free is included in all Office 365 plans for which you can sign up anytime.
DAX (Data Analysis Expressions) is a functional language wherein functions may contain other nested functions, conditional statements and value references. In Power BI, these functions are used to analyse data, and create new columns and measures.
Yes, Power BI is currently available as part of Microsoft Office 365.
Power Query is a free add-in that enables you to manipulate, transform, consolidate, enrich and merge your data. Power Query is designed by Microsoft for Excel and the Power BI Designer. Power Query acts as an ETL tool. This means: 1. Extracting data from a data source 2. Transforming the data 3. Loading it either in Excel, Power Pivot or the Power BI Designer
DAX stands for Data Analysis Expressions. It is a repository of functions that are combined to create formulas and expressions in Power BI.
The certification exam for Power BI, i.e., Analysing and Visualising Data with Microsoft Power BI, validates a candidate's knowledge of data analysis with Power BI. It tests a candidate on topics such as creating visualisations, the Power of BI Service and the Power BI Mobile App.
The roles and responsibilities of a Power BI professional include: 1. Enhancing collaboration between departments 2. Handling business administration 3. Providing data modelling design in order to collect data for centralized data warehouse 4. Picking up data from data warehouses for reporting 5. Demonstrating expertise in using query and reporting analysis tools 6. Regulating data collection by designing methods for database design and validation reports