我使用 Microsoft SQL Server 2008 R2、Java 7 和 Microsoft JDBC Driver 4.0 for SQL Server。
一旦我有一个名为 rs 的结果集,从日期时间列中获取“日期和时间”类型的最简单方法是什么,我可以从中提取日、月、年、小时、分钟和秒?
对于其他类型,我可以简单地使用 rs.getString("column name") rs.getInt("column name") 等方法,但 getDate 返回日期类型,而 getHour() 等在文档中被标记为已弃用。
这是什么c ++编译错误?我已经在另一台已配置的机器上编译了我的代码,所以我想我错过了在环境中要在C ++ 11中编译的东西(代码使用--std = c ++ 0x选项进行编译)。该错误似乎与C ++ 11中的新互斥功能有关。
In file included from /usr/include/c++/4.6/mutex:43:0,
from include/Ric_box_tele.h:4,
from src/Ric_box_tele.cpp:1:
/usr/include/c++/4.6/functional: In member function ‘void std::_Bind_result<_Result, _Functor(_Bound_args ...)>::__call(std::tuple<_Args ...>&&, std::_Index_tuple<_Indexes ...>, typename std::_Bind_result<_Result, _Functor(_Bound_args ...)>::__enable_if_void<_Res>::type) [with _Res = void, _Args = {}, int ..._Indexes = {0, 1, 2}, _Result = void, _Functor = std::_Mem_fn<void (Ric_box_tele::*)(Socket, int)>, _Bound_args = {Ric_box_tele*, Socket, int}, typename std::_Bind_result<_Result, _Functor(_Bound_args ...)>::__enable_if_void<_Res>::type = int]’:
/usr/include/c++/4.6/functional:1378:24: instantiated from ‘std::_Bind_result<_Result, _Functor(_Bound_args ...)>::result_type std::_Bind_result<_Result, _Functor(_Bound_args ...)>::operator()(_Args&& ...) [with _Args = {}, …Run Code Online (Sandbox Code Playgroud)