Hello Everybody  I am B N Vijayakumar. I am from Bangaluru Karnataka state. I am a B.E. in Computer Science graduate. I have learned various programming languages like C, C++, VC++, JAVA, JAVA servlets so on.  I have good knowledge about operating systems like Windows NT, Windows 7, Windows 10, and UNIX-based operating systems like Solaris, Linex. I am Solaris certified administrator. I am Oracle 9 certified administrator. I worked as a Data warehousing consultant. Also worked as Informatica Administrator. Now I am sharing information through blogging.

I am sharing information on Data warehousing through this post Historical Information System or Data Warehousing System Vs Real-time System or Online Transaction Processing System. I hope you enjoy reading this article on data warehousing


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