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Additional Info
What is Power BI?
Power BI may be an assortment of computer code services, apps, and connectors that work along to show your unrelated sources of knowledge into coherent, visually immersive, and interactive insights. Your information is also an associate degree surpass program or a group of cloud-based and on-premises hybrid information warehouses. Power BI helps you to simply connect with your information sources, visualize and find out what is necessary, and share that with anyone or everybody you wish.
Power BI may be a Business Intelligence and information visual image tool for changing information from varied information sources into interactive dashboards and analysis reports. Power metal offers cloud-based services for interactive visualizations with a straightforward interface for end-users to make their reports and dashboards.
Parts of Power BI :
Power BI consists of many components that each one work along, beginning with these 3 basics:
- A Windows desktop application is known as a Power metal Desktop.
- An online SaaS (Software as a Service) service is known as the facility metal service.
- Power BI mobile apps for Windows, iOS, and robot devices.
These 3 elements—Power BI Desktop, the service, and also the mobile apps—are designed to allow you to produce, share, and consume business insights in a manner that serves you and your role most effectively.
Beyond those 3, Power BI conjointly options 2 alternative elements :
- Power BI Report Builder, for making paginated reports to share within the Power BI service. Scan additional regarding paginated reports later during this article.
- Power BI Report Server, associate on-premises report server wherever you'll be able to publish your Power BI reports, once making them in Power BI Desktop. Scan additional regarding Power BI Report Server later during this article.
Why use Power BI?
- Pre-built dashboards and reports for SaaS Solutions
- Power BI permits a period of dashboard updates.
- Offers Secure and reliable affiliation to your knowledge sources within the cloud or on-premises
- Power BI offers fast preparation, hybrid configuration, and a secure atmosphere.
- Allows knowledge exploration-exploitation linguistic communication question
- Offers feature for dashboard visual image often updated with the community.
Power BI Tools :
Some vital Power BI tools are:
- Power BI Desktop :
Power BI desktop is the primary authoring and business tool for Power BI. Developers and power users use it to make spanking new models and reports from scratch.
Costs: Free
- Power BI service :
An online software system as a Service (SaaS) wherever Power BI knowledge models, reports, dashboards are hosted. Administration, sharing, collaboration happens within the cloud.
Pro license: $10/users/month
- Power BI Data Gateway :
Power BI Data Gateway works because the bridge between the ability BI Service and on-premise knowledge sources like DirectQuery, Import, Live Query. It's put in by BI Admin.
- Power BI Report Server :
It will host paginated reports, KPIs, mobile reports, & Power BI Desktop reports. It's updated every four months and installed/managed by the IT team. The users will modify Power BI reports to different reports created by the event team.
- Power BI Mobile Apps :
Power BI mobile app is offered for iOS, Android, Windows. It is often managed by Microsoft Intune. You'll use this tool to look at reports and dashboards on the ability BI Service Report Server.
Data Sources for the Power BI :
Excel (.xlsx, xlxm) :
A book will have information entered manually or information that is queried and loaded from external information sources.
Comma Separated worth (.csv) :
Files square measure easy text files with rows of information. Each row will contain one or a lot of values, that square measure separated by a comma.
Power BI Desktop (.pbi) :
You can use Power BI Desktop to question and cargo information from external information sources.
Databases within the Cloud :
It permits you to attach live to Azure SQL info, Azure SQL information Warehouse, etc.
Databases on-premises :
You can connect to SQL Server Analysis Services relative model databases. A Power BI Enterprise Gateway is needed.
Key terms used in Power BI :
- Visualization :
A visual show of knowledge to realize one or a lot of objectives. It offers a single-screen show of knowledge. It alerts users on problems or issues Operational, Performance, Personal, etc.
- Datasets :
A dataset is some things that you just import or hook up with. Datasets will be renamed, refreshed, removed, and explored.
- Dashboard :
The dashboard could be an assortment that contains zero or a lot of tiles and widgets. It's wont to represent a made-to-order read of some set of the underlying datasets.
- Reports :
A Power metal report is one or multiple pages of visualizations. It will be created from scratch, foreign to a dashboard, and created victimization datasets.
- Tile :
It is one visualization found in a very report or on an oblong dashboard box that contains every visual.
History of Power BI :
- Power BI was conceptualized by Ruler and Dhers Netz of the SQL server coverage services team at Microsoft.
- It was designed by the Chadic language patron saint within the year 2010 and named a Project Crescent.
- In 2011, it had been bundled with SQL Server Codenamed Mount McKinley. Microsoft undraped the primary preview to Power BI in September 2014.
- The first version of Power BI was discharged on 24 July 2015. It had supported stand out primarily based Add-ins like Power question, Pivot, view, and Map.
What is DAX Function?
DAX could be a formula expression language that is termed (DAX) which may be used with numerous visual image tools like Power BI. It's conjointly referred to as a useful language, wherever the total code is unbroken within a performance. DAX programming formulas contain 2 information types: Numeric and alternative.
Each is coupled to the opposite by having common columns. There square measure three things in Power BI wherever you'll be able to use
1. DAX :
- Calculated Columns
- Measures
- Tables
2. Calculated Columns :
A calculated column permits you to make new columns that are supported by the given information.
For example, there's no ' Final price' column out there within the things table. Here, the DAX perform is employed to calculate a replacement column once solely total value & amount square measure out there.
Price = List_Items[MRP]*List_Items[Qty]
In the information square measure shown within the higher than Power BI example, every row can currently have the individual calculated value.
3. Measures :
You can perform calculation mistreatment live while not the necessity to feature any information as shown within the below Power BI example. This can be useful for reports wherever the value can be displayed, while not requiring a completely new column to store it.
- Example :
Total of the MRP column * Total of Qty column
4. Tables :
DAX functions in the tabular model come back to entire tables. As an example, to get an inventory of all the countries the organization has purchasers in, use the function: cities touched = DISTINCT(Customers[City])
5. A word on Filters :
Filters hide rows that do not work the given criteria. A calculation once filtering out information is applicable solely on a row that matches those criteria.
Power BI Dashboard :
Power BI Desktop is an enlargement tool wont to generate dashboards and reports. Power BI applications are accessed by different users through desktop and mobile devices.
Components :
Power Query : It may be wont to search, access, and rework public and/ or internal information sources.
Power Pivot : It's used for information modeling for in-memory analytics.
Power View : This element permits you to see, analyze, and show information.
Power Map : It brings information to life with interactive geographical visual images.
Power BI Service : It permits you to share information views and workbooks, that you'll be able to refresh from on-premises and cloud-based information sources.
Power BI Q&A : It permits you to raise queries and find immediate answers employing a tongue question.
Data Management Gateway : It offers periodic information refreshers, reads information feeds, exposes tables.
Data Catalog : This element permits the user to find and utilize queries victimizing the info Catalog. Information may be expedited for search practicality.
Power BI DAX Functions :
1. Average :
This DAX operation permits you to seek out the type from a given set of values
Example - AvgComm = AVERAGE(List_Items[Price])
2. Max :
Helps you to seek out the maximum from a given set of values.
Example – ascertain the best order. HighSale = MAX(List_Items[Price])
3. Min :
Helps you to seek out the minimum set of values.
For example – this permits you to seek out all-time low order. LowestSale = MIN(List_Items[Price])
4. Count :
Count any numerical knowledge.
Example – Count range of tickets issued. TicketVolume = COUNT(Invoices[Ticket])
5. Concatenate :
This operation helps you to hitch values in calculated columns. You'll be able to use ConcatenateX if mistreatment in measures. :
Example – Concatenate the Item names, and MRPs can provide a distinctive code for all the value points at which every product is oversubscribed. ProMrp = CONCATENATE(List_Items[Item],List_Items[MRP])
6. TotalYTD :
The operation permits you to calculate the total from the beginning of this Year to the desired date. It performs calculations based on a year, not a year.
Example – Calculate Sales totals for the value column. CumiSales = TOTALYTD(SUM(List_Items[Price]),Invoices[Date])
7. All :
Returns everything. Ignore filters.
Example – Used with the calculating operation higher than.
Advantages of Power BI :
- Provide period dashboard updates.
- Secure and reliable association to your information sources within the cloud or on-premises
- Power BI offers a fast readying hybrid configuration and a secure setting.
- Data exploration mistreatment tongue question.
- Feature for dashboard image
- New options oftentimes supplemental that area unit is nice for surpassing users.
- Extensive information property capabilities Q&A feature published to the net.
- Integration with each Python and R secret writing to use visualizations.
- Power question provides several choices associated with haggling and cleans the info.
- Post commercial enterprise the info into Power BI internet service will schedule refresh while no manual intervention.
- Power BI backed by the country of computing and machine learning.
Disadvantages of Power BI
- Dashboards and reports are solely shared with users having constant email domains.
- Power Bl won't combine foreign knowledge that is accessed from period connections.
- Power BI won't settle for the file larger than 250MB and nothing file that is compressed by the information of X-velocity in-memory information.
- Power BI cannot settle for a file size larger than one GB.
- Dashboards ne'er settle for or pass user, account, or alternative entity parameters.
- Very few knowledge sources allow time connections to Power BI reports and dashboards.
