(急需)SQLSERVER2000数据库的数据类型(具体)
推荐回答(2个)
SQL Server标准数据类型
数据类型 类 型 描 述
bit 整型 其值只能是0、1或NULL,如Yes或No
int 整型 可以存储到数据库的几乎所有数值型数据
smallint 整型 对一些常限定特定范围的数值型数据有用
tinyint 整型 从0~255间,存储有限数目的数值时很有用
decimal 精确数值型 存储固定精度和范围数值型数据。
numeric 精确数值型 与上一数据类型相同
money 货币型 不用我多说吧
float 近似数值型 可以从-1.79E+308~1.79E+308之间
real 近似数值型 可以表示数值在-3.40E+38~3.40E+38之间
datetime 日期时间型 存储从1753年1月1日~9999年12月31日
smalldatetime 同上 从1900年1月1日~2079年6月6日
timestamp 特殊数据型 用来创建一个数据库范围内的唯一数码
uniqueidentfier
特殊数据型 用来存储一个全局唯一标识符,即GUID。
char 字符型 存储指定长度的定长非统一编码型的数据
varchar 字符型 同char
text 字符型 用来存储大量非统一编码型字符数据
nchar 统一编码字符型 用来存储定长统一编码字符型数据
ntext 统一编码字符型 用来存储大量统一编码字符型数据
binary 二进制数据类型 用来存储可达8000字节长的定长二进制数据
image 二进制数据类型 用来存储变长的三进制数据
货币 money
日期 datetime
整型 int
字符 char,varchar
单精度 float
双精度 double
这就是一些基本常用的类型了
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