2023上半年数据库系统工程师上午真题答案（71-75）

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71-75:

（  ）is a software package designed to store,retrieve,query and manage data User interfaces (Uls) allows data to be created,read,updated and deleted by authorized entities.The system users include database administrators (DBAs)application programmers and end usersMost of the time,(  ） are the only ones to directly interact with a system. They use (  ）to deal with database schemas and descriptions,of how the data should reside in the database.Thev use (  ） to deal with data manipulation which includes most common SQL statementssuch as SELECTINSERTUPDATE,DELETE,etc..They also focus on managing andmaintaining the (  )of the database system：prevent unauthorized access to the data.

问题1

A、DB

B、DBMS

C、SQL

D、DDL

问题2

A、database administrators (DBAs)

B、application programmers

C、end users

D、programmers

问题3

A、DDL

B、DML

C、SQL

D、MML

问题4

A、DDL

B、DML

C、SQL

D、MML

问题5

A、maintenance

B、security

C、performance

D、capacity