Powerbi - for you who are learning

Preface

White tea has been writing for two years PowerBI, About PowerBI The article series has been updated , Some updates may be made occasionally in the follow-up PowerBI Scene case of , Will slowly update some other tool articles , such as SQL、 Paging reports, etc , Thank you for your company .

This session will sort out and learn PowerBI My heart , And to you who are learning .

— Why learn to use it PowerBI?—

There may be many little friends , Used in work PowerBI There are not many opportunities , Or the scenario is not complicated , So many kids don't know how to learn PowerBI Where is the significance and Prospect of , Here is a brief description of white tea .

First of all, we are now in the Internet age , For enterprises , This is an era of digital transformation . With the development of enterprises , The increase in volume , More and more enterprises begin to pay attention to the value of data .

To put it simply , Increase in volume , As a result, the data calculation that can be handled by several people does not conform to the enterprise's planning , One is efficiency , One is the question of accuracy .

Hundreds of thousands of data can be calculated manually , But data of millions of volumes or more , It is unreasonable to rely entirely on manual labor , Enterprise digital transformation is the inevitable trend of development .

Next is in BI Before the tools , Many enterprises have already started digital transformation , But the tool used is shucang , It essentially solves the problems of data automation and data governance .

But this raises a new problem ： So much data , How to present effective information to business users in an effective time ？ This is actually BI The predecessor of requirements .

So learn PowerBI, Market demand and employment prospects are a good direction , It's even a good choice to use it for your own work .

— The heart of white tea —

A lot of friends have asked what the learning path of white tea is , Actually , The article of official account is the learning process of white tea .PowerBI Learning from , It can be divided into two pieces , One is to master basic functions , One is scenario application .

1 丨 PowerBI  Time function

This part of the function , It mainly introduces the application of some time functions , such as Today wait , Usually, this kind of function can be used to generate the date table , You can also calculate the time index with Calculate Use it with .

2 丨 PowerBI Time intelligence function

This part of the function , It mainly introduces the application of some time intelligence functions , Usually, it can be used to calculate the indicators of time dimension , For example, annual accumulation 、 A cumulative monthly 、 With the sequential etc. , For the novice , It's very friendly , Can quickly calculate some indicators , But in actual development , White tea suggests using less of these functions , Understand everything , I won't repeat it here .

3 丨 PowerBI Filter

DAX The most difficult part of , It is all kinds of context conversion , What we use most is actually Calculate function , Carry out internal modification of various valuation environments . So for those who have already started , The filter part is a must .

4 丨 PowerBI Information functions

Such functions , It is very useful in specific scenarios , For example, the calculation of levels 、 Permission control and text links, etc .

5 丨 PowerBI Other functions

At the very beginning , White tea is going to be divided by Microsoft 10 Class function to sort out , Later, Microsoft adjusted the division of functions , White tea is too lazy to rearrange , Let's divide the rest of the common functions here .

6 丨 PowerBI Biblical notes

This part , It belongs to some essays that white tea first read the Bible , It can also be understood as for DAX Some basic concepts of .

7 丨 PowerBI It's necessary to see at the beginning

This part , It's pure , It's about Calculate The basic usage of function , And internal logic .Calculate The application of function , It is the standard to measure whether you are getting started .

8 丨 PowerBI Practical functions

This part , It is a supplement to some conventional calculation problems , Like ranking 、 Total error 、 Date hanging egg, etc .

9 丨 PowerBI Tips

The content of the tip , It covers most of the scenarios we need , In the last two years , I often have friends ask me some questions DAX Function scenario application , In fact, there are .

—PowerBI Expand —

For small friends who are usually just for their own use , Master the above 9 The content is enough , But for those who want to transfer to a full-time job BI My little friend said , It's not enough .

Microsoft Ecology

From the perspective of Microsoft's own Ecology ,PowerBI Our ecosystem has been very sound .

In itself PowerBI The use of DAX Language , It's tradition MSBI in SSAS The main language of the table model , So when we master PowerBI in the future , Can easily master SSAS Table model in .

MSBI As a traditional BI In terms of tools , except SSAS, also SSIS、SSRS.

SSIS As a data extraction tool ,SSRS As a reporting tool .

SSRS Actually, it can be divided into two parts , One is the report server , One is report development .

RS Report server is actually the same as PBI Report server similarity 80%, Report development is exactly the same as pagination report .

See here , I believe all my friends understand ,PowerBI The extension of is actually a tradition MSBI The development of , Mastered PowerBI Can easily transition to MSBI.

except MSBI outside ,PowerBI And brother tools , such as Power Automate、Power Apps、AI robot .

therefore , In the grasp of PowerBI in the future , We can also extend the tools in the Microsoft ecosystem .

BI ecology

In terms of similar tools , And PowerBI There are similar tools FineBI、Tableau.

FineBI It is the mainstream in China BI Software , There are two main internal languages , One is SQL Language , One is a simple visual language .

Tableau It's foreign BI Software , The internal main language is similar to VB Language . The visualization is great .

If you don't want to expand in Microsoft's ecosystem , Similar extensions can also be made .

— Other skills —

In addition to the above tools , If you want to be a professional BI, Some other skills are needed , For example, it can mine the needs of users , Able to provide valuable analysis , This is what we often say BA Ability .

besides , We also need some aesthetic ability 、 And the ability of logical expression . How to in a short report , Explain our design ideas clearly , Form a business closed loop , This is a crucial concept .

About PowerBI This is the end of the story .

To you who are learning , May we make progress together .

This is white tea , One PowerBI Beginners .