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使用python 导入数据库时 遇到的问题 写的有点长 希望大佬能帮忙看看

0
悬赏园豆:30 [已解决问题] 解决于 2021-05-17 08:46

先看代码

    import os
    import time
    BACKUP_PATH = r'C:/Users/Administrator/Desktop/English_learning_assistant/bakcup/'
    
    DATETIME = time.strftime('%Y-%m-%d')
    # print(DATETIME)
    TODAYBACKUPPATH = BACKUP_PATH + DATETIME
    
    if not os.path.exists(TODAYBACKUPPATH):
        os.makedirs(TODAYBACKUPPATH)
    # dumpcmd = "mysqldump -uroot -p123456 test1 > " + TODAYBACKUPPATH + "/test2.sql"
    # print("数据已备份到"+BACKUP_PATH)
    # os.system(dumpcmd)
    
    dumpcmd = "mysqldump -uroot -p123456 test1 < " + TODAYBACKUPPATH + "/test2.sql"
    os.system(dumpcmd)
    print(TODAYBACKUPPATH)
    print(dumpcmd)
    print("数据已恢复")

这是错误

    -- MySQL dump 10.13  Distrib 5.5.53, for Win64 (AMD64)
    --
    -- Host: localhost    Database: test1
    -- ------------------------------------------------------
    -- Server version	5.5.53-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 */;
    --
    -- Table structure for table `test1`
    --
    DROP TABLE IF EXISTS `test1`;
    /*!40101 SET @saved_cs_client     = @@character_set_client */;
    /*!40101 SET character_set_client = utf8 */;
    CREATE TABLE `test1` (
      `test1` varchar(255) DEFAULT NULL
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
    /*!40101 SET character_set_client = @saved_cs_client */;
    --
    -- Dumping data for table `test1`
    --
    LOCK TABLES `test1` WRITE;
    /*!40000 ALTER TABLE `test1` DISABLE KEYS */;
    INSERT INTO `test1` VALUES ('');
    /*!40000 ALTER TABLE `test1` 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 2021-05-16 17:31:55
    C:/Users/Administrator/Desktop/English_learning_assistant/bakcup/2021-05-16
    mysqldump -uroot -p123456 test1 < C:/Users/Administrator/Desktop/English_learning_assistant/bakcup/2021-05-16/test2.sql
    数据已恢复

这是 .sql的内容
-- MySQL dump 10.13 Distrib 5.5.53, for Win64 (AMD64)
--
-- Host: localhost Database: test1
-- ------------------------------------------------------
-- Server version 5.5.53-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 /;
--
-- Table structure for table test1
--
DROP TABLE IF EXISTS test1;
/
!40101 SET @saved_cs_client = @@character_set_client /;
/
!40101 SET character_set_client = utf8 /;
CREATE TABLE test1 (
test1 varchar(255) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/
!40101 SET character_set_client = @saved_cs_client /;
--
-- Dumping data for table test1
--
LOCK TABLES test1 WRITE;
/
!40000 ALTER TABLE test1 DISABLE KEYS /;
INSERT INTO test1 VALUES ('2333');
/
!40000 ALTER TABLE test1 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 2021-05-16 17:39:56

这是数据库

我猜错误的原因是这个

VALUES('')这里面是空的

哪位大佬帮忙看一下啊 多谢了

木三136的主页 木三136 | 初学一级 | 园豆:173
提问于:2021-05-16 22:24
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最佳答案
0

发现了问题所在 有两点:

恢复的SQL命令是 mysql -uroot -p123456 test1 < " + TODAYBACKUPPATH + "/test2.sql

在恢复前需要先关闭数据库

木三136 | 初学一级 |园豆:173 | 2021-05-17 08:45
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