mysql查询今天,昨天,近7天,近30天,本月,上一月数据的方法mysql查询今天,昨天 from `article` whe
获取当天最新信息的mysql语句phpselect * from `table` where date(`date`) = curdate()SELE
SELECT *FROM `zfw_qb` AS t1 JOIN (SELECT ROU
mysql 去除重复 Select中DISTINCT关键字的用法 在使用mysql时，有时需要查询出某个字段不重复的记录，虽然mysql提供 有distinct这个关键字来过滤掉多余的重复记录只保留一条，但往往只用它来返回不重复记录的条数，而不是用它来返回不重记录的所有值。其原因是 distinct只能返回它的目标字段，而无法返回其它字段，这个问题让我困扰了很久，用distinct不能解
$list = $connect -> field('yr_ipdataex.id as id,yr_ipdataex.ip as ip,yr_ipdataex.status as status,yr_ipdataex.succeed as succeed,yr_ipdataex.fail as fail,yr_swbase.name as swname ,yr_ipd
if($_temp) { /* 组建数组 */ $_ipvo = array(); foreach($_temp as $k => $v) { $_ipvo[$k]['ip'] = long2ip($v); $_ipvo[$k]['iplong'] = $v; $_ipvo[$k]['add_time'] = $time; $_ipvo[$k]['add_uid'] = $seupe
ve start;主show processlist; flush tables with read lock;
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