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Category: Technologies & Hardware | Zhana Yordanova | 10/10/2015 23:49
Hacktivity is the Independent IT security festival of Eastern and Central Europe. IT experts will attend the two-day event where interesting programmes and presentation will await the participants. IT security festival A total of 30 presentations and 4 workshops, new techniques and new soultions....Read more
Category: Business Intelligence (BI) | Nick Shopov | 05/04/2015 20:27
Data brings a beautiful experience to those involved in its gathering, analysis and reporting. This article is the second on the series devoted to best data quotes and thoughts. Check out the first article here: Best Big Data Quotes and Provocative Data Thoughts | Part 1 20. “Too often we...Read more
Category: Technologies & Hardware | Zhana Yordanova | 25/02/2015 23:59
No. We are not hackers. We are ethical hackers. We believe in developing and implementing of the best solutions for IT security and protection. We believe in ethics and code, as well as the morality of every one of our members. Who are we? By documents we are NGO, by soul we are ambitious...Read more
Category: Business Intelligence (BI) | Nick Shopov | 15/02/2015 21:16
Having explained what a Data Warehouse is you should be now aware that it is not well optimized to serve a particular need but rather consolidate the whole historical data of an organization. This implies a number of issues when trying to maximize performance for particular usage. Here come Data Marts. ...Read more
Category: Business Intelligence (BI) | Nick Shopov | 07/12/2014 09:39
Relational database normalized schema is different from the architecture of a data warehouse. This article will explain what are the two most common design approaches when building a data warehouse - the Star Schema and the Snowflake Schema. NSBI Tutorials aim to make Business Intelligence (BI) and...Read more
Category: Business Intelligence (BI) | Nick Shopov | 09/11/2014 20:46
Optimization has always been a priority for business and database optimization is not an exclusion. Relational Database optimization is often related to a process called Normalization. Normalization | Definition Normalization is a process of optimization of a relational database in terms of data...Read more
Category: Business Intelligence (BI) | Nick Shopov | 05/11/2014 20:33
Data is amazing in a way it creates insights for businesses, people and the world around us. I have gathered a list of my favorite quotes and provocative personal insights about data. 19. “Luck does not exist - it's just a function of data we tend to ignore”. – Nick Shopov 18....Read more
Category: Business Intelligence (BI) | Nick Shopov | 04/11/2014 20:13
It is important for developers that they get an overview of available data, relationships and architecture. This is where Entity Relationships (E/R) diagrams are introduced. Entity Relationship (E/R) Diagrams | Definition Data is grouped in rows and columns, then grouped in tables and views. Next...Read more