干瞪眼,相信只要是玩过该游戏的玩家,都会觉得其特别刺激和有趣的,没有玩过的玩家也可以试着去玩玩,简单易学,相信很快就会学会的。不过很多人不知道干瞪眼游戏的规则,接下来给大家详细说一下。
I\'ve a table with a datetime (format: \'Y-m-d H:i:s\') \'created\' field and \'amount\' (integer) field in each row. Now I want to find out month wise total \'amount\' in last year. How can I do this