[think\exception\PDOException]
SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute.
上面是完整的错误代码，我的期望是执行MYSQL查询，写入过后，使用exec备份数据库目录的过程，但是运行的时候出错，我偿试了databa /**
* 备份数据库
*/
public function bakupdb($filename='')
{
if (empty($filename)) {
$filename = "dba_".date("Ymd").".tar.gz";
}
if (!IS_WIN) {
Db::free();
Db::query("LOCK TABLES `brand` READ,`series` READ,`spec` READ");
@exec("tar -czvf /data1/bakup/dba/".$filename." /home/database/mysql/dba");
Db::free();
Db::query("UNLOCK TABLES;");
} else {
return "\r\n暂时不支持WIN系统自动备份\r\n";
}
} 最佳答案
