首页/ 题库 / [单选题]关系数据库中,实现实体之间的联系是通过表的答案

关系数据库中,实现实体之间的联系是通过表与表之间的

单选题
2021-07-17 23:57
A、公共索引
B、公共存储
C、公共元组
D、公共属性
查看答案

正确答案
D

试题解析

相关题目
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

如果分别以检索词a、b、c在某数据库的关键词字段进行检索,检索式a or b and c得到检索结果数量最少。
Logistic回归系数与优势比OR的关系为()。
在应用ORS液的过程中,错误的做法是()
在应用ORS液的过程中,错误的作法是()
一项关于吸烟与肺癌关系的病例对照研究,研究结果表明OR为4.0,其意义是()
在应用ORS液的过程中,错误的是()
Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
翻译:With Average or With Particular Average(WA or WPA)()
李老师用Access创建了一个数据库文件来存放全年级学生期末考试的成绩,那么数据表“期末考试成绩”中每个学生的期末考试成绩就是()。
万方数据库使用布尔逻辑算符anD./or/not.其中A.anD.B表示()。
()shall be liable for loss of and damage to the Vessel and/or goods arising or resulting from inaccuracies in stating the description,quantity,weight,measurement or contents.
广告位招租WX:84302438

免费的网站请分享给朋友吧