我有一张数据表 结构为
//------------------------------------------------------------
**序号*************时间**************值1******值2******值3******值3
1 2015-1-1 00:00:00 1 1 1 1
2 2015-1-1 00:25:00 1 2 1 1
3 2015-1-1 00:40:00 1 1 3. 5
... ......... ... ... ... ...
... ......... ... ... ... ...
n 2015-1-1 00:59:00 1 1 3. 4
n+1 2015-1-2 00:00:00 1 1 1 1
n+2 2015-1-2 00:25:00 1 2 1 1
n+3 2015-1-2 00:40:00 1 1 3. 5
... ......... ... ... ... ...
... ......... ... ... ... ...
... 2015-1-2 00:59:00 112 1 3. 4
... 2015-1-3 00:00:00 .... ... ... ...
... ......... ... ... ... ...
... 2015-1-3 23:59:00 ... ... ... ...
... ......... ... ... ... ...
... 2015-1-4 00:00:00 .... ... ... ...
... ......... ... ... ... ...
... 2015-1-4 23:59:00 ... ... ... ...
... ......... ... ... ... ...
... ......... ... ... ... ...
... ......... ... ... ... ...
... ......... ... ... ... ...
... 2015-1-31 00:00:00 .... ... ... ...
... ......... ... ... ... ...
... 2015-1-31 23:59:00 ... ... ... ..
//**************************************************************************
如何设计一sql过程计算这个月里每一天的 值1之和、值2之和、值3之和、值3这和
返回数据集格式为:
//*****************************************************************************
**序号*************时间**************值1和******值2和******值3和******值3和
1 2015-1-1 12557 11011 4871 1041
2 2015-1-2 11111 35982 981 11247
3 2015-1-3 875621 9854 3000. 54687
... ......... ... . .. ... ...
... ......... ... ... ... ...
31 2015-1-31 178954 9187 3047. 456978
//***************************************************************************************
请问 完成这个查询,Sql语句应该咋写??查询视图?查询过程?? 谢谢! 我是刚刚用sql。不吝赐教!
------解决思路----------------------
group by convert(varchar(10),lng_time,120)
改为:group by lng_time