Database transaction

It is a class of database management systems that are used for non-relational database. Typically NoSQL database does not use two-dimensional table to store data. The four generally categories of NoSQL database are key-values database, column databases, document databases, and graph databases [2]. NoSQL database is an indispensable part of big data. Most company choose NoSQL database because it yields better performance when compared to relation database. Many relational databases have been existing

An entity relationship diagram is the basic design model for any database. It is the major deliverable for a conceptual database design. It is the logical organization of any data in the database and is usually made up of three components namely; entities, attributes and relationships. Entities are the major categories of data in the database and are usually represented by rectangles. Attributes are the characteristics of the entities and are usually written in the rectangle. Relationships are the

Types of Database 1. Flat File Database A flat file database is an excellent way of storing a pretty small amount of records. Flat file can be a plain text file. Flat file are generally not a structural relationships between the records. For example a spread sheet application such as Excel can be used as a flat file database. Each row in a worksheet can be a record and each column and a field. Flat file database can also be stored in a dedicated database application such as Access. Installing database

NoSQL database is a type of database that provides a means for storage and

that have underlying relational databases, repositories or other sources of data that simultaneously hide constant details that have been changed in related interfaces from the developers and the code they create. ORM makes it theoretically possible for developers to switch applications between relational databases. Since ORM tools mostly rely heavily on metadata of both the database and objects, the objects do not need to know anything about the database and the database doesn’t need to know anything

Management Information Systems Businesses have used computers since the 1950s to assist in the operation of daily activities. Accounting tasks were the first to be solved with computers, which started the process of developing information systems. The early computers were large and bulky and took up the space of an entire room. Typically these computers can only handle one task at a time and were only allowed to be used by one user at a time. Today technology is all around us and used on a day-to-day

What is Centralized Database? In a centralized database, a server or a mainframe computer is used to store all the data of an organization. Through the Wide Area Network (WAN) users in distant locations access data using the application programs available for data access. The centralized database is ought to be able to accept and satisfy the entire requests that are received in the system, however, it could easily be crammed. Therefore, the ability to place every single data in its place can ease

requires an enhanced data management strategy to sustain their business operations. Their existing data repository for its reservation processing system is limited in business intelligence and reporting functionalities. The tour operator seeks a database management specialist to assist them in leveraging their data sources to enable them to forecast and project tour sales appropriately. Imagine that you have been hired to fulfill their need of enhancing the data repository for their current reservation

information systems they are and how are they related to the learning objectives for this module. I have picked three examples of information systems in real life applications, they are: Pandora radio (decision support system), cashier register (transaction processing system) and Facebook (office automation system). Information system are vital to knowledge management, they provide a simple system to ensure the success of not only businesses, but national defense as well. * Define an information

Google AdWords, issue press releases and newsletters. Professional web developers would optimize your website and web pages as per current SEO trends to provide high rankings to your online store at the search engine results pages. Since monetary transactions are involved, the ecommerce site should be made