Mysql分布式之原生分表（查、删）05

思路：

查询：根据user_id取模查询数据所在分表数据，局限性在于只能根据id查询
删除：先删除分表数据，后压入消息队列删除总表数据

实现代码

1、查询数据代码find.php

<?php
require "./RunDbPdo.php";
$model = new RunDbPdo();
$model->configFile = './config/user.config.php';

$user_id = 3;
$d = $user_id % 2;
$sql = "select * from mm_user{
      
      $d} where user_id='{
      
      $user_id}'";
$data = $model->getRow($sql);
var_dump($data);

2、删除数据代码delete.php与执行消息队列代码queque.php

<?php
require "./RunDbPdo.php";
require './RedisQ.php';

$model = new RunDbPdo();
$model->configFile = './config/user.config.php';
$redis = new RedisQ();

#1、先删除分表数据，后压入消息队列删除总表数据
$user_id = 3;
$d = $user_id % 2;
$sql = "delete from mm_user{
      
      $d} where user_id = '{
      
      $user_id}'";
$result = $model->query($sql);
if ($result) {
    
    
    $sql = "delete from mm_user where user_id = '{
      
      $user_id}'";
    $bool = $redis->lpush('sqls', $sql);
    var_dump($bool);
}

<?php
$file_dir = dirname(__FILE__);
chdir($file_dir);
require "./RedisQ.php";
require './RunDbPdo.php';

$redis_boj = new RedisQ();
$model = new RunDbPdo();
$model->configFile = './config/user.config.php';

//4、循环出队列  当sql为空时break结束前循环，sql执行失败的写入文件日志，后期重新执行
$do = true;
while ($do) {
    
    
    $sql = $redis_boj->rpop('sqls');
    if(empty($sql)){
    
    
        break;
    }
    $res = $model->query($sql);
    if(!$res){
    
    
        file_put_contents('sql_push',$sql);
    }
    var_dump($res);
}