A SURVEY OF DATA BASE MANAGEMENT IN ENHANCING THE WORK PERFORMANCE OF OTM GRADUATES IN SELECTED ORGANISATIONS IN ABUJA

A  SURVEY OF DATA BASE  MANAGEMENT IN  ENHANCING THE WORK PERFORMANCE OF OTM GRADUATES IN SELECTED ORGANISATIONS IN ABUJA

ABSTRACT
The research  provides a survey of data base management in enhancing the work performance of OTM graduates in selected organization in Abuja.it provides a conceptual and theoretical appraisal of data base management and its significance in enhancing the work performance of OTM graduates.

BACKGROUND OF THE STUDY

A database is an organized collection of data.[1] It is the collection of schemes, tables, queries, reports, views and other objects. The data is typically organized to model aspects of reality in a way that supports processes requiring information, such as modelling the availability of rooms in hotels in a way that supports finding a hotel with vacancies.
A database management system (DBMS) is a computer software application that interacts with the user, other applications, and the database itself to capture and analyze data. A general-purpose DBMS is designed to allow the definition, creation, querying, update, and administration of databases. Well-known DBMSs include MySQL, PostgreSQL, Microsoft SQL Server, Oracle, Sybase and IBM DB2. A database is not generally portable across different DBMSs, but different DBMS can interoperate by using standards such as SQL and ODBC or JDBC to allow a single application to work with more than one DBMS. Database management systems are often classified according to the database model that they support; the most popular database systems since the 1980s have all supported the relational model as represented by the SQL language.
Sometimes a DBMS is loosely referred to as a ‘database’Formally, a “database” refers to a set of related data and the way it is organized. Access to this data is usually provided by a “database management system” (DBMS) consisting of an integrated set of computer software that allows users to interact with one or more databases and provides access to all of the data contained in the database (although restrictions may exist that limit access to particular data). The DBMS provides various functions that allow entry, storage and retrieval of large quantities of information as well as provides ways to manage how that information is organized. Because of the close relationship between them, the term “database” is often used casually to refer to both a database and the DBMS used to manipulate it. Outside the world of professional information technology, the term database is often used to refer to any collection of related data (such as a spreadsheet or a card index).
This article is concerned only with databases where the size and usage requirements necessitate use of a database management system.[2]Existing DBMSs provide various functions that allow management of a database and its data which can be classified into four main functional groups:

• Data definition – Creation, modification and removal of definitions that define the organization of the data.
• Update – Insertion, modification, and deletion of the actual data.[3]
• Retrieval – Providing information in a form directly usable or for further processing by other applications. The retrieved data may be made available in a form basically the same as it is stored in the database or in a new form obtained by altering or combining existing data from the database.[4]
• Administration – Registering and monitoring users, enforcing data security, monitoring performance, maintaining data integrity, dealing with concurrency control, and recovering information that has been corrupted by some event such as an unexpected system failure.

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A  SURVEY OF DATA BASE  MANAGEMENT IN  ENHANCING THE WORK PERFORMANCE OF OTM GRADUATES IN SELECTED ORGANISATIONS IN ABUJA