DB2 Database
A kind of IBM's relational database management system (RDBMS) name.
DBA Database Administrator (Database Administrator)
DBA database management that have the expertise to create, maintain and ensure the database security system management.
Can be used to provide a stable online degrees, high performance and safety, is a database administrator's natural mission. However, with businesses or organizations to deploy higher levels of information technology, back-end database system is installed a variety of platforms; application is updated frequently with shorter and shorter cycles of software development, database administrators want to duck to water in a distributed environment satisfactorily complete description of the database structure, tracking and management of Kingfield simple tasks.
In recent years, to ensure that core lifeline - the normal operation of the database and quality, the major database software suppliers, are all developing several kinds of different systems of DBA examination system and certification, and hope that through public examination assessment, selected database software knowledge and practical experience, complete systems management.
The industry, including Oracle (Oracle), Microsoft, IBM, etc., each have a set of certification standards, usually the market value of DBA but also as the database management technology of advanced certification on a number of persons who differ in social status.
Such as Microsoft, that is, the development of a Microsoft Database Administrator (MCDBA) certification exam. Certified persons, representatives of a leading organization uses Microsoft SQL Server database design, implementation and management, while capable of carrying out the substantive capacity: including the promotion of physical database design, develop logical data model, the building of physical database, use the Transact -SQL to create data services, management and maintenance of databases, planning and management of security settings, monitor and optimize databases, as well as install and configure SQL Server and so on.
DBCS Double-Byte Character System
Use two bytes (BYTE) word to represent a group of language systems, such as Chinese and CJK characters are double-team system.
DBMS database management system (Database Management System)
DBMS is a programming system used to define, describe and manage databases and the link between applications.
DBMS are the core of the database system built on the basis of the operating system, common functions include the establishment and maintenance of databases, database definition, data access, database operation and management, as well as the database organization, storage, management and performance optimization.
DBMS by the database vendor, management personnel can be through the set of system settings, commands issued directly to the database. Because of its configuration data structure exists Meta data, as long as parameters to understand the meaning, any person may modify or increase the use of DBMS data structures. |
