SQL 数值类型表示范围
Data type |
Range |
Storage |
---|---|---|
bigint |
-2^63 (-9,223,372,036,854,775,808) to 2^63-1 (9,223,372,036,854,775,807) |
8 Bytes |
int |
-2^31 (-2,147,483,648) to 2^31-1 (2,147,483,647) |
4 Bytes |
smallint |
-2^15 (-32,768) to 2^15-1 (32,767) |
2 Bytes |
tinyint |
0 to 255 |
1 Byte |
decimal |
- 10^38 +1 through 10^38 - 1 |
|
numeric |
- 10^38 +1 through 10^38 - 1 |
|
float |
- 1.79E+308 to -2.23E-308, 0 and 2.23E-308 to 1.79E+308 |
Depends on the value of n |
real |
- 3.40E + 38 to -1.18E - 38, 0 and 1.18E - 38 to 3.40E + 38 |
4 Bytes |
money |
-922,337,203,685,477.5808 to 922,337,203,685,477.5807 |
8 bytes |
smallmoney |
- 214,748.3648 to 214,748.3647 |
4 bytes |
posted on 2012-09-21 10:33 Jenney Zhao 阅读(256) 评论(0) 编辑 收藏 举报