简析简析mysql字符集导致恢复数据库报错问题字符集导致恢复数据库报错问题
mysql字符集编码错误的导入数据会提示错误了,这个和插入数据一样如果保存的数据与mysql编码不一样那么肯定会出现导
入乱码或插入数据丢失的问题,下面我们一起来看一个例子。
<script>ec(2);</script>
恢复数据库报错:由于字符集问题,最原始的数据库默认编码是latin1,新备份的数据库的编码是utf8,因此导致恢复错误。
[root@hk byrd]# /usr/local/mysql/bin/mysql -uroot -p'admin' t4x < /tmp/11x-B-2014-06-18.sql
ERROR 1064 (42000) at line 292: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right
syntax to use near ''<a href=\"ht' at line 1
修复方法(未实测):
[root@Test ~]# /usr/local/mysql/bin/mysql -uroot -p'admin' --default-character-set=latin1 t4x < /tmp/11x-B-2014-06-18.sql
MySQL
-- MySQL dump 10.13 Distrib 5.5.37, for Linux (x86_64)
--
-- Host: localhost Database: t4x
-- ------------------------------------------------------
-- Server version 5.5.37-log
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE=' 00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
--
-- Current Database: `t4x`
--
CREATE DATABASE /*!32312 IF NOT EXISTS*/ `t4x` /*!40100 DEFAULT CHARACTER SET utf8 */;
--
-- Table structure for table `wp_baidusubmit_sitemap`
--
DROP TABLE IF EXISTS `wp_baidusubmit_sitemap`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `wp_baidusubmit_sitemap` (
`sid` int(11) NOT NULL AUTO_INCREMENT,
`url` varchar(255) NOT NULL DEFAULT '',
`type` tinyint(4) NOT NULL,
`create_time` int(10) NOT NULL DEFAULT '0',
`start` int(11) DEFAULT '0',
`end` int(11) DEFAULT '0',
`item_count` int(10) unsigned DEFAULT '0',
`file_size` int(10) unsigned DEFAULT '0',
`lost_time` int(10) unsigned DEFAULT '0',
PRIMARY KEY (`sid`),
KEY `start` (`start`),
KEY `end` (`end`)
) ENGINE=MyISAM AUTO_INCREMENT=84 DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;
0
1
[root@hk byrd]# /usr/local/mysql/bin/mysql -uroot -p'admin' t4x < /tmp/t4x-B-2014-06-17.sql
ERROR 1064 (42000) at line 295: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right
syntax to use near ''i' at line 1
MySQL
-- MySQL dump 10.11
--
-- Host: localhost Database: t4x
-- ------------------------------------------------------
-- Server version 5.0.95-log
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE=' 00:00' */;