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Advantages and disadvantages of database management system
Advantage And Disadvantage Of Database Management
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A database management system is a collection of programs that allow users to create and maintain a database. Even though there are numerous advantages for using database management systems, there are a few disadvantages. Such disadvantages include complexity, size, performance, and the associated costs of a database management system. The advantages of a database management system outweigh the disadvantages, but one should understand the disadvantages to ensure they have a complete understanding of the system.
First, database management systems can be very complex and difficult to understand. The designers and the end users must have the necessary skills in order for them to use it properly. The database designers need to have the SQL coding knowledge to properly write the database software. Not only do they have to know SQL coding, they will have to learn the altered version of SQL the database management software might use. The end user will need the understanding of how to run queries, generate reports, and update the database if their security level allows.
In addition to the complexity of the software, the hardware required can be complex. Most modern day database management systems require a mainframe to house the database management
Depending on the size of the database, a large mainframe and terminal system could cost in the hundreds of thousands of dollars or millions of dollars. The mainframe required could have the extreme processing power and allotted memory compared to most personal computers. This makes the mainframe an expensive piece of equipment, and a large investment for most companies. The maintenance of the mainframe and database system could be costly in itself. The maintenance of the mainframe involves replacing defective or near defective parts, which will ensure the database’s uptime is for as long as
A management information system (MIS) is an information collection and analysis system that facilitates access to program and participant information."(mays.tamu.edu, 2013) This system is usually computerized. Businesses use MIS at all levels of operation to collect, process and store data. Management uses this data in the form of information needed to carry out the daily operations of the business. Everyone who works in business, from someone who pays the bills to the person who makes employment decisions, uses MIS. In fact, many (if not most) companies concentrate on the alignment of MIS with business goals to achieve competitive advantage over other companies. "The major components of the MIS are the database, the model base, and the user interface. The database is used to store important data, the model base has the required statistical models in order to analyze the large amounts of data, and the user interface allows the user of the software to navigate through it and use it with ease."(mays.tamu.edu, 2013)
Firstly, these types of systems are installed in an environment which instantly adapts to the complex system and starts generating new requirements from the very moment it starts using it. These new requirements may occur because only after a process of trial and error can one truly see what functions with a system and what does not; and these things may not have been evident before the installment of the complex system.
Maintenance may be corrective, adaptive, perfective or preventive maintenance, depending on the situation and software. The maintenance may be a routine maintenance to address an error or it could be larger scale maintenance to keep the software up-to date. Operating systems upgrade over time and hardware keeps changing. At the same time software needs to be upgraded to keep it functional. However, sometimes the structure of the software does not allow these maintenances to be done. Different maintenances done to software may also decay the software structure. More and more maintenances are done which may decrease the software structure. At some point this will become too complicated and uneconomic to maintain and it is better to replace the system. (Tutorialspoint 2015; Carl
Hardware, software, support and maintenance costs grow each year with multiple systems in each local region running different types of software and hardware. The application and hardware support teams are larger than could be possible with one integrated solution.
Integrated Information System Health information system consolidates, stores, and transmits patients’ information related to their health, procedures and plan of care. With the implementation of integrated information systems, computerized information technology improved healthcare in many ways. As Yoder-Wise explains, patients’ health information system has the potential to hold patients’ data from birth to death, and to automatically share it through authorized network systems within and among organizations at the same time. New data entered in a patient’s electronic medical record (EMR) automatically updates the patient’s record providing the latest information.
The following strategies demand a predetermined system for their successful execution. The principal idea is to assess the current infrastructure of every building/facility that provides computers, and schedule a revamp. An evaluation should be made about what components need and need not be replaced. • Refitting the data centres and clusters in the high powered facilities The two Iridis supercomputers and the Lyceum cluster (Cmg.soton.ac.uk) have perhaps the greatest power consumption rates.
System performance is one of the most critical issues faced by companies dealing with vast amounts of data. Companies use database systems and their applications to store, retrieve and handle this data.
DBA deals with all of this by finding user needs, set the database, and test the system. DBA should enable editing any system he or she created. At the same time DBA should ensure the security of the data and guarantee data integrity and backup. Moreover, DBAs should know the database management systems (DBMS) that include the knowledge of Oracle, IBM DB2, and Microsoft SQL server (“Database Administrator,” 2010). Oracle is one of the most important platforms that DBA must know and have experience with. According to Kanaracus “The database experience we look for most of the time is Oracle”, says Tom Hart, executive vice president of the operations and technology group at Veritude. “SQL Server is more of a nice-to-have"
Databases are becoming as common in the workplace as the stapler. Businesses use databases to keep track of payroll, vacations, inventory, and a multitude of other taske of which are to vast to mention here. Basically businesses use databases anytime a large amount of data must be stored in such a manor that it can easily be searched, categorized and recalled in different means that can be easily read and understood by the end user. Databases are used extensively where I work. In fact, since Hyperion Solutions is a database and financial intelligence software developing company we produce one. To keep the material within scope I shall narrow the use of databases down to what we use just in the Orlando office of Hyperion Solutions alone.
A database management system, or DBMS, gives the user access to their data and helps them transform the data into information. Such database management systems include dBase, Paradox, IMS, and Oracle. These systems allow users to create, update, and extract information from their databases. Compared to a manual filing system, the biggest advantages to a computerized database system are speed, accuracy, and accessibility.
Network databases share several problems with the hierarchical database management system. Both are the very inflexible, and also set relationships and record the structures that must be predefined. The major disadvantage of both network and hierarchical database management systems was that they are the programmer’s domains. To answer the simplest query of this database, one had to create the program that navigated the database management structure and produce an output; unlike SQL, this program was written in the procedural, and required the great deal of the knowledge of both database management structure and underlying the operating system. As a result, these type of programs were not portable and took enormous amount of time to write.
I have my coding skills about C++, Java, HTML, CSS, JavaScript, and PHP. This means that I can analysis the problem to write and develop a code for generating a work. The next is my knowledge. I learned Object Oriented Programming, Algorithm and Database Management System course, so this can help me to apply my knowledge with the work about algorithm and using SQL.
The Database Management System (DBMS) is software that enables the users to define, create, maintain and control the access to the database. It is a software that interact with the user’s applications programs and it database. Meanwhile, information retrieval system is a system that involved the activity that the systems obtain the information. The obtaining information action need the information from it resources.
Visitor management refers to tracking the usage of a public building or site. By gathering increasing amounts of information, a Visitor management system (VMS) can record the usage of the facilities by specific visitors and provide documentation of visitor’s whereabouts.
In our world, people rely heavily on the power of technology every day. Kids are learning how to operate an iPad before they can even say their first word. School assignments have become virtual, making it possible to do anywhere in the world. We can receive information from across the world in less than a second with the touch of a button. Technology is a big part of our lives, and without it life just becomes a lot harder. Just like our phones have such an importance to us in our daily lives, database management systems are the same for businesses. Without this important software, it would be almost impossible for companies to complete simple daily tasks with such ease.