Introduction This article delivers an overview of the network data model as well as the hierarchical data model. The network model as well as the original language were presented in the report of the CONFERENCE/COMMITTEE ON DATA SYSTEMS LANGUAGES (CODASYL) database work group of 1971. That is why it is sometimes called the DBTG model. The revised reports of 1978...

This question came from a busy business owner. How do you confront a boss who keeps asking you for more than your responsibilities? There are several things you can do to take charge over your own career and professional development path. First you need to fully understand your job grade, role and responsibilities for that particular role and the role...

Functions of Data Mining Data mining classifies facts or suggests conclusions based on the selection of data to discover patterns or anomalies. Data mining have five key functions: Classification: It defines the characteristics that describe a particular group for example, students who have failed in a particular subject. Clustering – It identifies sets of items that share a specific feature....

This question came from a busy business owner. How do you deal with a toxic coworker? If someone at the office is making you feel consistently stressed or unmotivated, you might be dealing with a toxic coworker. Most importantly don’t take it personally and keep your interactions always profession. Don’t let this toxic behavior damage your professional, emotional and physical...

THE ETL (EXTRACT TRANSFORMATION LOAD) PROCESS This section explains the 4 main processes of the data warehouse. They are extract (data from operating systems as well as transferred to the data warehouse), transform (data in internal format as well as organization of the data warehouse) as well as cleanse (to ensure quality of use sufficient for decision making) as well...

This question came from a busy business owner. How can I effectively network as an introvert? First, I would recommend that you stop thinking of yourself as an introvert. Labeling yourself usually boxes you in to some preconceived behaviors. Everyone has things that makes them uncomfortable. Simple practice will help you be more comfortable in any situation. Here are some...

Benefits of Data Warehousing Includes the use of the data warehouse, Find the right information Presentation of information. Hypothesis test Information discovery Transmit the analysis Tangible benefits (quantified / measurable) it includes: Improved product inventory. Lower production costs. Improved selection of target markets. Improved management of assets as well as liabilities. Intangible benefits (difficult to quantify) it includes: Increase productivity...