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封装sql语句中in限制查询个数的方法

时间:2021-07-01 10:21:17 帮助过:3人阅读

* 此方法用于每天凌晨取前一天的回滚用户账号 */ public function getRollBackAccount($startTime,$endTime){ //1.首先查询出当天的新增的用户账号 $sql_account = "SELECT DISTINCT `accountName`,`mTime` FROM `t_log_register` WHERE `mTime`>=‘{$startTime}‘ AND `mTime`<=‘{$endTime}‘"; $day_account = fetchRowSet($sql_account); foreach ($day_account as $key => $account) { $arr[] = $account[‘accountName‘]; } // 统计回滚用户的时间范围限制两个月内 //$two_months_before_time = strtotime(date("Y-m-d", strtotime("-2 month"))); $now_end_time = $endTime-86400; // 批量查询限制 $count_account = count($arr); $base = 10; $group = floor($count_account / $base); for ($i=0; $i <= $group; $i++) { echo ‘<br>group: ‘ . $i . "<br>"; $group_account = ‘‘; for ($j=0; $j < $base; $j++) { $key = $i * $base + $j; if($key < $count_account) { $group_account .= "‘" . $arr[$key] . "‘,"; } } $group_account = rtrim($group_account, ‘,‘); $sql_all_account = "SELECT DISTINCT `accountName`,`agentId`,`serverId`,`platform`,`mTime` FROM `t_log_register` WHERE `accountName` in ({$group_account}) AND `mTime` < ‘{$now_end_time}‘ "; $all_account = fetchRowSet($sql_all_account); if(!empty($all_account)){ break; } } $arr_account = array(); foreach ($all_account as $key => $before_account) { $arr_account[$key][‘agentId‘] = $before_account[‘agentId‘]; $arr_account[$key][‘serverId‘] = $before_account[‘serverId‘]; $arr_account[$key][‘platform‘] = $before_account[‘platform‘]; $arr_account[$key][‘accountName‘] = $before_account[‘accountName‘]; $arr_account[$key][‘mTime‘] = $before_account[‘mTime‘]; } return $arr_account; }

 

封装sql语句中in限制查询个数的方法

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