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SQLserver数据库基础

Jun 07, 2016 pm 03:41 PM
sqlserver Base control database Serve run

1控制数据库的服务 运行cmd 在控制面板输入netstart MSSQLserver(启动数据库服务) 在控制面板输入netstop MSSQLserver(关闭数据库服务) 在控制面板输入netcontinueMSSQLserver(继续数据库服务) 【字母大小写均可】 2数据库文件类型 .Mdf是数据库文件 .Ldf 是

1·控制数据库的服务

运行 cmd

在控制面板输入  net  start    MSSQLserver   (启动数据库服务)

在控制面板输入  net  stop    MSSQLserver   (关闭数据库服务)

在控制面板输入  net  continue  MSSQLserver   (继续数据库服务)

    【字母大小写均可】

    SQLserver数据库基础

    SQLserver数据库基础

 

2·数据库文件类型

. Mdf  是数据库文件

. Ldf  是数据库操作日志

. Ndf  是数据库次要文件(一般没用)

3·sql常用的数据类型

 

Char(10)         字符型,10表示字节长度,可更改

 

Datetime     日期时间型

 

Decimal(18,0)   浮点型,18表示整数位个数,可更改;0表示小数位个数,可更改

 

Float        浮点型,精确到15位小数

 

Image        文本图形型,用于存储大量的二进制数据,通常为图形等ole和嵌入对象

 

Int          整型

 

Text             文本图形型,用于存储大量文本数据

 

Varchar(50)      字符型

 

Varchar(MAX)     字符型

 

Xml

 

 

创建数据库、表

 

  create database  qq  --创建数据库

 

  go

 

  use qq  --选择数据库

 

  go

 

  create table shuiguo --创建表

 

  (

 

  Code  int,--列名+数据类型,英文逗号分隔

 

Name  char(10),

 

Jiage  decimal(18.2),

 

Chandi  char(10)

 

  )

 

 

 

5·删除数据库  drop  database  qq

 

6·修改数据库名,前面为旧名字,后面为新名字  sp_renamedb  qq,abc

 

7·备份与还原

 

  数据库的备份

    右键数据库名--->任务--->备份--->备份类型选择完整、仅复制备份、备份集过期时间晚于随便一个天数--->附加--->选择路径、写文件名和后缀.bak--->确定

 

    SQLserver数据库基础

    SQLserver数据库基础

    

  

  数据库的还原

    右键数据库中的还原数据库--->目标数据库的名字要和备份的数据库名字一致--->源设备、选择备份后数据库的路径、选择并确定

    

    SQLserver数据库基础

 

8·分离与附加

 

  数据库的分离

    右键要分离的数据库名--->任务--->分离(删除链接、更新统计信息)--->确定

 

    SQLserver数据库基础

  数据库的附加

    右键数据库附加--->添加(寻找数据库路径)--->确定

 

    SQLserver数据库基础

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