Go through my previous article purpose of columnstore index.
Normally SQL Server stores the data in pages in a row based manner for tables (heaps) and B-tree indexes. This is the traditional approach and technically this is called “Row store”.
Column store is something like turning traditional storage model into 90 degrees. In this approach, all the values in single column will be in compressed form. Column store index stores each column in a separate set of disk pages which is different from the traditional storage format.
Let’s see an example,
|1 xyz Production|
|2 Robert Information Technology|
|3 Mary Sales|
|4 John Account|
|1 2 3 4|
|Xyz Robert Mary John|
|Production Information Technology Sales Account|
Column store index is more compressed than the row store. This can understand by seeing above examples. In row store format we have different data types involved in a single row (ID is Integer, Name is string, Department is string). Row store method trying to compress the different data type fields, but in column store, all the values in a same data type so it is easy to compress the data.
Data Compression percentage of column store is greater than the row store.
Check my previous post about introduction to Power BI before going through this article.
Creating a report and dashboards are very easy in Power BI by simply pointing to the correct data source.
Levels in Power BI,
1. Create a dataset
2. Create a report on top of above dataset
3. Create a dashboard – Just pin a charts to display in dashboard from report.
Power BI is an application which we can use in online as well as in desktop. The steps provided in my previous article (Link) is for online version of Power BI.
To download the desktop version, click here. It has more options compare than online version.
Power BI has gateways which helps to keep the data fresh by connecting the on-premises data sources. It provides the flexibility to individuals as well as organization.
I just flipped through my phone and found this amazing article which might be a great energy re-charge for many youngsters today. This clearly talked about the key habits, practise and experience from Bill Gates that helped him succeed. This is just a simple formulae for all of us to do, what we do should have hard core dedication & hard work to succeed. The main 7 key points highlighted are
What a great re-invention that we should really apply in our day to day life. I sincerely advise and suggest to all of you who don’t do this or have done this in the past but don’t do it anymore, to restart in doing the same.
All the very best.
Power BI is one of the best visualization tool and it can be used by anyone. Initially this tool was available for office 365 SharePoint site. It was something like an add-on but now they have upgraded and it is available externally.
Power BI team from Microsoft has put their ideas and innovations to make this tool available to everyone and it is not required much technical knowledge to use.
There are lots of improvement has been taking place from day one of power BI by Microsoft power BI team.
Steps to Use Power BI
Nowadays, data being generated and captured across many devices, applications and services. Now every organization is tasked with storing massive amounts of data to accelerate their business growth success.
Using traditional tools to capture and process the data is very challenging and it is not going to be one time activity because all data users want to see continuous growth.
We have below issues while doing this task.
In many cases, so much of time elapsed between the time the query start executed and time to render the result.
To overcome the above issues, Microsoft SQL Server team worked on columnstore Index, which allow very large data set to be read quickly.
The performance of the columnstore index is far better than normal index. This has been introduced in Microsoft SQL Server 2012.
There are many visualization tools available from different companies.
Microsoft always concentrates more on visualization tools because visual tools are going to play a major role in the future.
What is the use of visualization tools?
visualization tools to visualize and analyze the data in an easy way. In this digitized environment, we are producing data from different kinds of machines and gadgets which are not easy to process and understand. To understand those data, we need to process first and once we get proper format, then using visualization tools, we can able to understand.
Microsoft innovations are always awesome since those are very easy to learn and use. The most famous tool from Microsoft is office tools, in that Microsoft excel is the best which can be used from very basic users to advanced users.
In excel, Microsoft added a few more options in terms of visualization. Those options are,
Data is the most valuable asset in almost all the places.
Understanding the data is not easy for a layman. Visualization tools are playing a vital role to make the layman to understand about the data. Most of business decisions based on best data visualization.
This article speaks about simple visuals based on data about cancer statistics.
Just collected a few facts about the estimated number of new cancer cases in US 2015.
Visualization tools always helping us to see the facts very clearly. I just converted the data to graphs by using simple and effective Microsoft Excel.
Estimated New Cases for Both Male and Female:
Estimated New cases for Male Vs Female:
This is just to help you understand the facts about cancer diseases.
Ease of access and easy life is now possible with On-premises and hybrid cloud technology with SQL Server 2016.