= {'dpub': 'date(dt_published)'}).order_by('-dpub', '-views', '-dt_written', 'headline')[0:5]SELECT *, date(dt_published) as dpub FROM `news_entry` order by dpub DESC LI
我试图让一个输出文件查询在一个数组中的每个值上运行一个进程,以加快从mysql导出数据的过程,我想在多个内核上运行脚本。我的bash脚本是:array=( $( for i in$dbquery ; do echo $i ; done ) ){
dbquery=$(mysql -u user --password=passwor
改进、简化和加速sql的这些部分的最佳方法是什么?drop temporary table if exists inverted; select cast(s.name as char(30)) as name, max(if(s.ts='00:30:00', cast(s.value_t1 as decimal(9,2)), null)) as '0:30_it1',
max(if(s.ts='0