About Me

I am Muhammad Choirul Amri but I go by Choirul. I’m an IT professional, writer, and community enthusiast. I have worked with various clients to develop, deploy, and optimize their software investments. My main interests are performance optimization for SQL Server database, data analytics, and enterprise architecture. I also have intensive exposure on application integration and enterprise governance. My professional engagements was spanned across Asia with Microsoft Partners, Customers and Microsoft Consulting Services.

I was awarded as Microsoft Most Valuable Professional (MVP) from 2005 to 2010, following my contribution to SQL Server and ASP.NET technical communities. I am also a Co-Founder of IlmuKomputer.Com which was established in 2001, and remains the largest IT learning portal in Indonesia. I founded SQL Server User Group Indonesia, an official PASS Chapter.

I established Retawu Farm, a social entrepreneur entity focusing on educative farming, goat breeding, and home made dairy products.


Various IT articles that was published at IlmuKomputer.Com. Mainly on SQL Server database and Microsoft technologies.


Archive of video tutorials, documentation, and appearances at various media. Random topics on farming, entrepreneurship, and IT .


A rather serious writing on business management topic. Archive available at Academia.edu.


Started in 2014, I build Bumi Retawu Farm as a model of social enterprise focusing on sustainable farming. The farm follows three principles: low cost, no waste, and striving for social impact. It currently consists of goat breeding, dairy farming, and cat fish fishery. Farm location: Ngawi, East Java