mysql根据条件导出表数据（`--where=“文本“`）

本文只讲导出，导入可以参考不同MySQL服务的表以及库的数据迁移（/备份）-CSDN博客

现在先查下migration_one.table_11里有什么：

SELECT * FROM migration_one.`table_11`;
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id      name    
------  --------
12321   hehe    
1321    haha    
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管理员终端打开输入：

D:\start_java\lwsmysql\mysql-8.0.17-winx64\bin\mysqldump.exe -u  root -h 127.0.0.1 -proot  -P3307 migration_one table_11 --where="name like 'h%'" > D:\start_java\XinQiUtilsOrDemo\testMigrationMySQL\table_11_t_d_by_name.sql
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得到结果：

执行结果：

D:\start_java\XinQiUtilsOrDemo\testMigrationMySQL>D:\start_java\lwsmysql\mysql-8.0.17-winx64\bin\mysqldump.exe -u  root -h 127.0.0.1 -proot  -P3307 migration_one table_11 --where="name like 'h%'" > D:\start_java\XinQiUtilsOrDemo\testMigrationMySQL\table_11_t_d_by_name.sql
mysqldump: [Warning] Using a password on the command line interface can be insecure.
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得到：

-- MySQL dump 10.13  Distrib 8.0.17, for Win64 (x86_64)
--
-- Host: 127.0.0.1    Database: migration_one
-- ------------------------------------------------------
-- Server version	8.0.17

/*!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 */;
/*!50503 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 */;

--
-- Table structure for table `table_11`
--

DROP TABLE IF EXISTS `table_11`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!50503 SET character_set_client = utf8mb4 */;
CREATE TABLE `table_11` (
  `id` varchar(200) NOT NULL,
  `name` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `table_11`
--
-- WHERE:  name like 'h%'

LOCK TABLES `table_11` WRITE;
/*!40000 ALTER TABLE `table_11` DISABLE KEYS */;
INSERT INTO `table_11` VALUES ('12321','hehe'),('1321','haha');
/*!40000 ALTER TABLE `table_11` ENABLE KEYS */;
UNLOCK TABLES;
/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;

/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!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 2023-11-04 17:54:52

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如果只想要name以’he’开头的字段数据那么就只需要修改where文本里面的数据：

D:\start_java\lwsmysql\mysql-8.0.17-winx64\bin\mysqldump.exe -u  root -h 127.0.0.1 -proot  -P3307 migration_one table_11 --where="name like 'he%'" > D:\start_java\XinQiUtilsOrDemo\testMigrationMySQL\table_11_t_d_by_name_he.sql
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执行结果table_11_t_d_by_name_he.sql：

D:\start_java\XinQiUtilsOrDemo\testMigrationMySQL>D:\start_java\lwsmysql\mysql-8.0.17-winx64\bin\mysqldump.exe -u  root -h 127.0.0.1 -proot  -P3307 migration_one table_11 --where="name like 'he%'" > D:\start_java\XinQiUtilsOrDemo\testMigrationMySQL\table_11_t_d_by_name_he.sql
mysqldump: [Warning] Using a password on the command line interface can be insecure.
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得到：

-- MySQL dump 10.13  Distrib 8.0.17, for Win64 (x86_64)
--
-- Host: 127.0.0.1    Database: migration_one
-- ------------------------------------------------------
-- Server version	8.0.17

/*!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 */;
/*!50503 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 */;

--
-- Table structure for table `table_11`
--

DROP TABLE IF EXISTS `table_11`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!50503 SET character_set_client = utf8mb4 */;
CREATE TABLE `table_11` (
  `id` varchar(200) NOT NULL,
  `name` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `table_11`
--
-- WHERE:  name like 'he%'

LOCK TABLES `table_11` WRITE;
/*!40000 ALTER TABLE `table_11` DISABLE KEYS */;
INSERT INTO `table_11` VALUES ('12321','hehe');
/*!40000 ALTER TABLE `table_11` ENABLE KEYS */;
UNLOCK TABLES;
/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;

/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!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 2023-11-04 18:14:17

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