不同数据类型在数据库和编程语言之间的对应关系表

MySql 与 C#

MySql	C#
varchar	string
bigint	long
bigint unsigned	ulong
int	int
int unsigned	uint
smallint	short
smallint unsigned	ushort
VARCHAR(36)	Guid
smalldatetime	DateTime
date	DateTime
datetime	DateTime
timestamp	DateTime
float	float
double	double
numeric	decimal
smallmoney	decimal
decimal	decimal
money	decimal
bit	bool
bool	bool
boolean	bool
tinyint	byte
tinyint unsigned	sbyte
image	byte[]
binary	byte[]
blob	byte[]
mediumblob	byte[]
longblob	byte[]
varbinary	byte[]