1亿条数据在PHP中实现Mysql数据库分表100张，mysql100张_PHP教程

<span><span> 1</span> <span>$i=0;
</span><span> 2</span> while($i<span><</span><span>=99</span><span>){
</span><span> 3</span> <span>echo "$newNumber \r\n";
</span><span> 4</span> <span>$sql</span><span>="CREATE TABLE `code_"</span><span>.$i."` (
</span><span> 5</span> <span> `full_code` char(10) NOT NULL,
</span><span> 6</span> <span> `create_time` int(10) unsigned NOT NULL,
</span><span> 7</span> <span> PRIMARY KEY  (`full_code`),
</span><span> 8</span> <span>) ENGINE</span><span>=MyISAM </span><span>DEFAULT CHARSET</span><span>=utf8";
</span><span> 9</span> <span>mysql_query($sql);
</span><span>10</span> <span>$i++; </span></span>

<span><span>1</span> <span>$table_name=get_hash_table('code',$full_code);
</span><span>2</span> <span>function get_hash_table($table,$code,$s=100){
</span><span>3</span> <span>$hash = sprintf("%u", crc32($code));
</span><span>4</span> <span>echo $hash;
</span><span>5</span> <span>$hash1 = intval(fmod($hash, $s));
</span><span>6</span> <span> return $table."_".$hash1;
</span><span>7</span> } </span>

<span><span>1</span> <span>CREATE TABLE IF NOT EXISTS `code` (  
</span><span>2</span> <span>`full_code` char(10) NOT NULL,
</span><span>3</span> <span>`create_time` int(10) unsigned NOT NULL,
</span><span>4</span> <span>INDEX(full_code)  
</span><span>5</span> ) TYPE=MERGE UNION=(code_0,code_1,code_2.......) INSERT_METHOD=LAST ; </span>