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1 votesanswersviews
MySQL多个发送数据状态
我的查询运行时间过长 . 当我描述它时,我看到类似的东西: Sending data 0.039324 executing 0.000011 Sending data 0.039662 executing 0.000012 Sending data 0.040380 executing 0.000015 Sending ... -
1 votesanswersviews
MySql,JOIN和Group By查询是使用临时和文件
我有2个表格如下: CREATE TABLE ox_campaigns(campaignid mediumint(9)NOT NULL auto_increment,campaignname varchar(255)NOT NULL default'',clientid mediumint(9)NOT NULL默认'0',is_deleted tinyint(1)NOT NULL默认'0',PR...