使用SQL数据库需要引入命名空间（ ）。 A: using System B: using System.Data.OleDb C: System.Data.SqlClient D: using System.Data

The main functions of the database management system are () A: database maintenance B: data calculation C: data manipulation D: data definition

Product Data Management system is a ____________ system A: computer-based B: product-based C: data-based D: management-based

The core of the database system is（）. A: Data model B: Database administrator C: Database D: Database management system

RDBMS的缩写是( ) A: Relational DataBase Management System(关系数据库管理系统) B: Relational DataBase Migration System(关系数据库移植系统) C: Relational Data Migration System(关系数据移植系统) D: Relational Data Manage System(关系数据管理系统)

An accounting information system communicates data to help businesses make better decisions.

存储在计算机外部存储介质上的结构化的数据集合，其英文名称是( )。 A: Data Dictionary(简写DD) B: DataBase System(简写DBS) C: Data Base(简写DB) D: Data Base Management System(简写DBMS)

为使用OleDb .NET Data Proviver连接到SQL Server 2005数据库,应将Connection对象的ConnectionString属性中的Provider子属性的值设置为:

Which of the following is NOT a valid advantage of coding systems? A: The ability to process data is improved by the use of a coding system B: Coding systems eliminate the risk of error C: Checks on data can be carried out more easily if a coding system is used D: Items of expenditure can be located more quickly if a coding system is in place

数据库管理系统（Data Base Management System，DBMS）是一种特殊的应用软件