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The purpose of database management system
Purpose of database management system
The purpose of database management system
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Database
Database is an information that consists of data related with structure, meaning, purpose, users and application, objectives and fulfil need requirement. Database management system also known as DBMS is a information that been collected to general purpose. Database application is an independent programmed that provide service, storage manageable, give an efficient interfaced and generate report. There is a few functions of database which is structure definition, population, reporting ad modification of structure.
There is a database functionalities that perform consistency and efficiency of database. This function can be achieved by using the DBMS. First and foremost is DBMS as a data dictionary management that consist of definition for each data element and the relationship that been stored in a data dictionary. Means that all programs that access the data into database will work through the DBMS. The data dictionary will be used by DBMS to the require data component structure and its relationship.
Secondly is a DBMS as a storage management that create a structured required from a complex data. This way will avoid us from having a difficult way to define and programmes the information data characteristics. DBMS consist of modern DBMS that provide another function in deep compared to the common DBMS. This modern DBMS will also include related data foe entry form, or screen definitions, report definitions, data validation rules, procedural code, structures to handle video and picture formats,
The third functions of DBMS is as a transformation and presentation. The data that entered to the system will be confirm and structured as the data required. The data usually will be in two types of distinction either data logical format nor data physical format. The DBMS format will conform the physically retrieved data to make the data as the users logically request. This can be done by maintaining the data independence because the system will be serasi with the users.
Next is the DBMS as a storage which is it’s enforce data security and users privacy while using database. This is important for the multiusers database system whereby each of them might have different types of database. By having this DBMS functions, its will provide users with their individual database. Where they can access through their own items, data operation, and data that they used. This way can avoid database simultaneously.
DBMS also functional as a multi users access control. This DBMS created to make sure that this database can be used with many users either at the same time or not to access the data.
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.
Microsoft Access is a user friendly application software database. According to Microsoft ® Corporation (2004), “Access version 2002 extends this versatility by giving developers and more experienced users new functionality, enabling them to access and analyze their important data as well as build powerful new database solutions. At the same time, Access now makes it easy for beginning users to discover and use more of the existing application” (no pg). This means Microsoft Access application software has something to offer for everybody, from the experienced programmer to the first-time database user. With the programs numerous tutorials, along with the Help Menu, wizards and Office Assistant, one can quickly and easily find solutions to most any database need, problem or concern.
That is, one database can be accessed by multiple users or can be shared by many customers and they are partitioned from each other through security model of application instead of virtual server.
(Mullins 1995) Currently, the more sought after relational database products are incorporating more and more complex features and components to simplify procedural logic. Due to the complexity of todays relational database, corporations are changing the established way of dealing with database management personnel. Traditionally, as new features were added to the database, more and more responsibility fell on the DBA. With the emergence of the relational database management system (RDBMS), we are now beginning to see a change in the database administrator's role.(Mullins 1995)
In 1970, Edgar Codd wrote several papers outlining in theory a new approach to database construction that would use a table of records and a unique identifier called a ¡§key¡¨ to search for related records within the table. Codd demonstrated that such a system could provide sets of data in a single operation without the need for the end user navigation required by earlier flat file models. Codd¡¦s theory resulted in the introduction of relational database management systems. Relational databases organize information in multiple tables that are linked together and include built-in functions allowing them to retrieve, sort, and edit the data in numerous ways. Instead of duplicating records in each table, the data can be stored in one table and simply linked to other tables that might utilize it. In addition, data retrieval speed is increased by the ability of a relational system to access any of the linked tables with a single connection instead of requiring multiple tables to be opened for data extraction (Wise).
In the past, most of the databases were centralized, protected, and kept in a one location using a complicated database system known as centralized database. Nowadays, with the new technology of personal computers and cell phones, a new sort of database has appeared, and it seems that majority of people are pleasant with it, even if their private data is split everywhere. Many enterprises had changed their databases from the centralized databases, into the distributed database system, since it meets the demand of accessing and processing the data in the organization. Distributed database technology is considered as one of the most remarkable developments in this century (Ozsu, 1991; Rahimi & Haug, 2010; Cain, 2012). Distributed databases are basically a collection of databases that are divided on multiple computers which are connected logically but located in different physical locations, and each site manages its own local data. In contrast, centralized database is a database that is located in a one location and it is considered as a big single database (Connolly & Begg, 2010).
Information Retrieval is simply a field concerned with organizing information. In other terms, IR is emphasizing the range of different materials that need to be searched. Others researcher said that IR is the contrast between the strong structure and typing a database system with the lack of structure in the objects typically searched in IR. The actual process in information retrieval systems is it has to deal with incomplete or under specified information in the form of the queries issued by users. IR uses the techniques of storing and recovering and often disseminating recorded data especially through the use of a computerized system.
of multiple types of end users. The data is stored in one location so that they
The database application design can be improved in a number of ways as described below:
Management Information System (MIS) is defined as a computer-based information system which provides information to support operations, management and the decision making function of the organization.
The DBMS has a function that can be differentiate from the information retrieval system. The DBMS have the ability to store, update and retrieve the data. This is the main function of the DBMS because the database can be used if there is any record is being stored into the database. The record need to be retrieve first, then it can be change by the database administrator as it will be the record has been updated. The DBMS will protect the structure of the data structure.
Function of database management system can designed to manage data and information that large bodies within a company management involves both defining the structure
A database management system in the main software tool of the database management approach because it controls the creation, maintenance, and use of the database of an organization and its users. The three major functions of a database management system are first to create new database and database application. Second to maintain the quality of the data in an organized database. And last to use the database of an organization to provide the information that its end users need. An example of a database management approach in a banking information system. Note how the savings, checking and installment loan programs use a database management system to share a customer database. Note also that the database management system allows a user to make direct, ad hoc interrogations of the database without using application programs.
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.
Management information systems can be used as a support to managers to provide a competitive advantage. The system must support the goals of the organization. Most organizations are structured along functional lines, and the typical systems are identified as follows: