How to export mysql table

1、使用select ...into outfile ... 命令来导出数据

 mysql> select * from tablename into outfile 'target_file' [option];

其中 option 参数可以是以下选项：

fields terminated by 'string'                   // 字段分隔符，默认为制表符'\t'
fields [optionally] enclosed by 'char'          // 字段引用符，如果加 optionally 选项则只用在 char、varchar 和 text 等字符型字段上，默认不使用引用符  
fields escaped by ‘char’                        // 转移字符、默认为 '\'  
lines starting by 'string'                      // 每行前都加此字符串，默认''  
lines terminated by 'string'                    // 行结束符，默认为'\n'  
 
# char 表示此符号只能是单个字符，string表示可以是字符串。

2、使用mysqldump导出数据为文本。mysqldump实际调用的就是后者提供的接口，并在其上面添加了一些新的功能而已。

mysqldump -u username -T target_dir dbname tablename [option]

root@bogon:/usr/local/mysql/bin# ./mysqldump -uroot -p -T /data/mysql/dump t2 test --fields-terminated-by ',' --fields-optionally-enclosed-by '"'
 
**************** test.txt **********************
zj@bogon:/data/mysql/dump$ more test.txt
1,"a","\\\"##!aa"
2,"b","helloworld"
3,"c","helloworld"
4,"d","helloworld"
 
***************** test.sql *********************
zj@bogon:/data/mysql/dump$ more test.sql
-- MySQL dump 10.13  Distrib 5.7.18, for Linux (x86_64)
--
-- Host: localhost    Database: t2
-- ------------------------------------------------------
-- Server version    5.7.18-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 utf8mb4 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
 
--
-- Table structure for table `test`
--
 
DROP TABLE IF EXISTS `test`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `test` (
  `id` int(11) DEFAULT NULL,
  `name` varchar(10) DEFAULT NULL,
  `content` varchar(100) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
/*!40101 SET character_set_client = @saved_cs_client */;
 
/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
 
/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
 
-- Dump completed on 2017-09-25 11:14:06

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