以下结果集是从带有一些联接和联合的sql查询派生的.sql查询已经在日期和游戏上对行进行分组.我需要一个列来描述按日期列分区的游戏尝试次数.
Username Game ID Date
johndoe1 Game_1 100 7/22/14 1:52 AM
johndoe1 Game_1 100 7/22/14 1:52 AM
johndoe1 Game_1 100 7/22/14 1:52 AM
johndoe1 Game_1 100 7/22/14 1:52 AM
johndoe1 Game_1 121 7/22/14 1:56 AM
johndoe1 Game_1 121 7/22/14 1:56 AM
johndoe1 Game_1 121 7/22/14 1:56 AM
johndoe1 Game_1 121 7/22/14 1:56 AM
johndoe1 Game_1 121 7/22/14 1:56 AM
johndoe1 Game_1 130 7/22/14 1:59 AM
johndoe1 Game_1 130 7/22/14 1:59 AM
johndoe1 Game_1 130 7/22/14 1:59 AM
johndoe1 Game_1 130 …