David Collins worked at Pennsylvania Railroad, developed the barcodes to address the problems faced in accurately tracking train cars. He developed a system called KarTrak with reflective stripes made from phosphorescent ink that can be easily read by light and pasted on train cars. He used blue and yellow reflective types, encoding a six digit… Read More »
Database marketing is the most successful form of marketing used by the marketers on the internet through out the world. Database marketing involves analysis and use of customer databases to promote the product or service in the direct marketing. There are two types of marketing databases viz. consumer databases and business databases. The data of… Read More »
Barcodes are used in various industries which helps the businesses to increase their efficiency and workforce productivity, there are mainly two types of barcodes one is the linear barcodes and the other is 2D barcodes. The idea of barcodes was first introduced by Wallace Flint in 1932 . He is the one who invented an… Read More »
For successful implementation of successful database in an organization, there is a need for database blue print. This process is called as design phase which includes many steps. It includes four steps: Requirement Analysis: The requirements for the database are determined by the business by thoroughly understanding the system. To gather the information, businesses use… Read More »
A database schema refers to the organization of the data to create a blue print in order to construct a useful database for an organization. It contains a set of formulas representing the integrity constraints and all these formulas are expressible in the same language. The conceptual schema which is created first is transformed in… Read More »
Database is the collection of information. As the data is organized and stored, a business can retrieve large amounts of data easily from the database whenever required. Database can be classified in to many types based on different criteria. Following are the types of databases: Analytical Database: Analysts may create separate database for online analytical… Read More »