'*-5' : 12, - the number of unique athletes with the maximum jump score in the range from 0 to 5SELECT `distace_range`, count(*) FROM ( `user_id`, '*-5',
IF(MAX(`distace`) >= 6
我什么都听不懂。我有大量数据和表的Oracle 11g db。我想加入一些表并输出它的结果。好吧,我刚写到:FROM Table1WHERE Table2.Column1=1
选择*从Table1左加入Table2 ON Table2.Table1_Id = Table1.Table1_Id左加入Table3 ON Ta