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Nisal


     

Big Data engineering and Business Intelligence Professional who has overall 10 years of experience in IT domain, and 8+ years of exposure to the Microsoft Business Intelligence/Analytics stack and data-driven culture. I'm very passionate about Data Engineering/Data Science/ Machine Learning, related tools, and technologies. In my professional life currently, working as an Architect - Data and AI at Zone24x7 where I mainly focus on building data products and advanced analytics solutions to allow customers to make business decisions more effectively and efficiently. I'm a Microsoft Certified Trainer with experience in conducting technical training programs. As a tech community contributor, I share my knowledge with the community by writing technical articles, and speaking at tech forums and conferences locally and overseas.

Specialties:
  •    Business Intelligence
  •    Data Warehouse design
  •    Database Design and development
  •    Microsoft BI (SSAS, SSIS, SSRS, Power BI)
  •    Dimensional modeling skills
  •    Data Analysis
  •    Could Architectures    
  •    Modern Data Warehousing 
  •    Big Data Engineering
  •    Data Lake Design/ Delta Lake 
  •    Data Science
  •    Machine Learning 
  •    Consulting
  •    Training 
  •    Team Management
  •    Leadership 
  •    Mentoring  








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Step-by-Step Twitter Sentiment Analysis Using Power BI Streaming Dataset, Microsoft Flow and Azure Text API

Sentiment Analysis is known as Opinion mining or emotion AI which is a branch of Natural Language Processing and text analytics where systematically identify, extract, quantify, and study affective states and subjective information. This kind a analysis widely apply to analyse the product or service reviews, voice of the customer, survey responses from online and social media feeds to analyze the attitude of the customer. Basically from the sentiment analysis the output would be either Positive, Negative or Neutral.  There are various algorithms and methods to do a sentiment analysis out there. In this post here I'm doing a sentiment analysis for iPhone 8 product by analyzing twitter feeds. Because, I wanted to know what others are thinking about the latest phone released by Apple. In order to do this task I'm using,  Microsoft Azure cognitive services : Text Analytics (to run the sentiment analysis algorithms to get out the results)  Microsoft Flow ...

How to Get Row Counts for all Tables in your SQL Database

This is the simplest method to get the row counts of all tables in your SQL Server database. Might be useful when you are doing the data testing over your BI project.     select   schema_name (tab.schema_id) , tab.name  as  [table],         sum (part.rows)  as  [rows]     from  sys.tables  as  tab          inner join  sys.partitions  as  part              on  tab.object_id  =  part.object_id where  part.index_id  IN  ( 1 ,  0 )  //   0 :  Table   without  PK,  1 :  table   with  PK and   schema_name (tab.schema_id)  =   'dbo'   group by   schema_name (tab.schema_id) , tab.name --order by sum(part.rows) desc  

COVID-19 Situation in Sri Lanka: Real-time Dashboard using Power BI

[Updated on March 28, 2020] COVID-19  is a new strain that was discovered in late December, 2019 and by now it has been started to spread all over the world including 199 countries. There are around 26,000 people were died due to the virus and 580,000 confirmed cases at the moment I update this blog post. Though, the fatality rate is lower when compared to other viruses in similar strains like MERS and SARS . However, the biggest challenge most of the countries facing right now is to accommodate the patients with the growing numbers at every minute. The public was asked by the government to avoid nonessential gatherings as much as possible to stop spreading this deadly virus. Even though there were not many cases found in Sri Lanka, from March first week, they found the initial case a patient who works as a tourist. Now the situation is turning to worst after they found many cases especially tourists who are born Sri Lankans came down from Italy and European countries....