Advantages And Disadvantages Of Distributed Database

Databases today are essential to every business. Whenever you visit a major Web site – Google, Yahoo!, Amazon.com, or thousands of smaller sites that provide information – there is a database behind the scenes serving up the information you request (Hector, Ullman, & Widom 2008). Database systems are becoming as common in the workplace as the essential one that it can easily be searched, categorized and recalled in different means that can be easily read and understood by the end user.

The choice to have various copies of the information in case of loss and ease of transfer.

can usefuly be shared. Give examples of their sharing as it ocurs in practice in distributed

Reduce time to access the required data: DDBMS allows to store copies of a data in multiple branches.

atabase is a collection of data which describes the activities of one or more organizations in a well-defined structure and the structure of a database is specific and it has a purpose. Database Management System (DBMS) is used to control or organize the data in a database. Database Management System (DBMS) is also used for maintaining large collections of data. Distributed database can be defined as a collection of various databases which can be stored at different computer network locations. In this paper we discuss about Distributed Databases, their advantages and disadvantages.

SharePoint will address the challenges of (1) dealing with multiple versions of documents passing between office staff; and, (2) the difficulty of sharing and accessing information stored between the different regional offices by enabling staff to share, organize, and manage information as individuals or in teams (Office.com, 2013).

It is a set of technologies using which we can copy and then distribute data and the database objects from one database to another and then carry out synchronization between the databases to maintain the consistency of the data.

Improved Data Sharing: Data is retained by usual business processes and manipulated on a server is available for designated users (clients) over an authorized access. The use of Structured Query Language (SQL) supports open access from all client aspects and also transparency in network services depict that similar data is being shared among users.

This portion of the report goes on to show the issues we have in the cases of both database management and dissemination of information. In cases of information gathered both home and abroad, there are issues with integration and synchronization of this workflow. Many have cited and shown how across the IC there are multiple databases, of which there is no conduit to share information, multiple programs collecting the same data, but are not cross-matched, and in many cases redundant entries are made, and then not managed creating an abundance of information unable to

Patient records, pharmaceutical records, will each have a dedicated data mart while financial and personnel records will share the third. Each data mart will backup to the data warehouse every 24 hours or as Riordan’s IT department specifies. To minimize disruptions at individual facilities should a data mart be temporarily cut off from the network active records are to be kept in local servers will which upload any updates needed to each data mart on an hourly basis. In this way should any given data mart become unavailable local facilities will still have access to active records.

The databases are required to be accessed very properly; the broken or fragmented data needs to be recovered. For querying and reporting purposes the data should be easily accessible

With each department broken into specialty groups, data needs to not only be shared, but more importantly saved in accessible locations for each department that needs access to the data. For instance, certain accounting positions will require access to all data concerning shipping and receiving to maintain up-to-date financial records. However, the shipping and receiving departments do not require access to the accounting department's data. One such way to accomplish this is through the use of a central storage unit, or server that is specifically for data and file sharing amongst all four departments. Along with specified data accessibility over the network, CphoeniX INC also requires daily backups of all data pertaining to each department, and that all finical data is to be saved indefinitely to a secure location.

| Centralized Database System-Centralized data system to help manage client’s information.-Helped track calls to centre.-Facilitates the company to accommodate more clients.-Helps support 200 other applications.

Local data: let us consider example of organization as amazon which maintains vast amount of data. It contains departments like developers, database administrators, sales and many more. When local data is taken into consideration, for example, in sales if we take delivery service department. It simply considers invoice of customer as it will start it service and keeps track until courier is delivered. After delivering, invoice will be erased from their system as they won’t be connected in remaining issues. This invoice number can also be used across the organization i.e. if we consider customer service department they should maintain this invoice in order to inform details if any customer approaches them before delivery.

In the Distributed Operating System, different computers are connected together. With this kind of connection, the kind of topology in this system is hierarchical system. Hierarchical system topology, involves a server/client pattern that is used by the databases, distributed systems, and web servers (Grant, 2014). With this hierarchical system, information from different sources, root servers, flow to the next servers. Here different clients are connected and are able to receive and send their information.