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数据库—耿建玲视频总结(二)

Jun 07, 2016 pm 03:41 PM
Summarize us database video

接上篇,我们继续,同样也是先来图,再来解释! 第五章:管理事务and库 1.首先建库,就好比我们盖房子,我们可以自己盖(企业管理器建库),也可以包给别人让别人给盖(T语言建库)。 2.当房子盖好之后我们需要按大门(设置区),还要配钥匙(设权限),其中

    接上篇,我们继续,同样也是先来图,再来解释!

                 数据库—耿建玲视频总结(二)

    第五章:管理事务and库

    1.首先建库,就好比我们盖房子,我们可以自己盖(企业管理器建库),也可以包给别人让别人给盖(T语言建库)。

    2.当房子盖好之后我们需要按大门(设置区),还要配钥匙(设权限),其中房子的结构图(sysadmin管理员和创建者可以使用),当任何一把大门的钥匙去开门的时候这时这把锁就只属于这一个钥匙(single user同一时间只提供一个用户使用),当陌生人来参观自己的房子(read only 他只能看不可以修改)。

    3.当我们觉得这个房子盖的不合理(出现故障),只拆掉刚砌的那一栋墙(简单恢复到最近修改的状态),全部拆除(完全恢复),恢复到我某一时间的房子的状态(大容量日志恢复)。

    4.当我们的主房盖好之后,我们需要修改一下房子的大小(改库容),增加一个围墙(增大库文件),拆掉一个围墙(减小库文件)。

                 数据库—耿建玲视频总结(二)

    第六章:表,这和上图的分析大致相同

    1.盖房子(建表)

    2.按门(设约)

    3.装修(管表)

    4.给每个屋子安装电路(管视图)

                 数据库—耿建玲视频总结(二)  

    第八章:sql权管

    1.当我们自己回家(windows认证),当我们的父母回家(sql server认证),当我们和我们的父母一起回家(混合认证)

    2.我们自己对于周围的人所拥有的权利,不太明确,需要指定之后才能执行特有的权利(对象权限),我们的法律对我们就有特定的管理权(语句权限),当我们出生那刻起,我们就有孝敬父母的义务(暗示权限)。

                 数据库—耿建玲视频总结(二)

    第九章:数据库备份与恢复

    1.我们的理论基础(概)

    2.我们的途径(方式)

    3.我们的做法(方法)

    个人感受:理论性的东西只能作为自己的参考,具体深入的理解其真正的含义,还得在实践中不断地训练,遇到问题,解决问题,在错误中不断地深入理解,只有这样我们才会打遍天下无敌手,加油!


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