@num=1; 把num类型转成nvarchar类型 cast(@num as nvarchar(10)) @str=’123′; 把str转换成int 类型 cast(@str as int)
@num=1; 把num类型转成nvarchar类型 cast(@num as nvarchar(10)) @str=’123′; 把str转换成int 类型 cast(@str as int)
@num=1; 把num类型转成nvarchar类型 cast(@num as nvarchar(10)) @str=’123′; 把str转换成int 类型 cast(@str as int)
@num=1; 把num类型转成nvarchar类型 cast(@num as nvarchar(10)) @str=’123′; 把str转换成int 类型 cast(@str as int)