MySQL->導出/導入資料[20180521]

MySQL 導出

    INTO OUTFILE將資料導出至文件中

    mysqldump工具導出資料和數據結構，而且能夠針對數據庫、數據表、索引的結構。

 

INTO OUTFILE測試

 

  select * from seq_test into outfile '/tmp/backup_v0.txt';

    

 

生成一個文件，各值用逗號隔開

 

  select *  into outfile '/tmp/backup_v1.txt' fields terminated by ',' enclosed by '"' lines terminated by '\n' from seq_test;

    

 

  select * from seq_test into outfile '/tmp/backup_v2.txt' fields terminated by ',' enclosed by '"' lines terminated by '\r\n' ;

        

 

 

mysqldump工具導出原始資料

        mysqldump -u root -p runoob seq_test|gzip > backup_data.zip

           

 

 

 　　也可使用如下命令將導出的數據直接導入到遠程的服務器上，但請確保兩臺服務器是相通的，是能夠相互訪問的：</p>

　　　　$ mysqldump -u root -p database_name \

    　　　　   | mysql -h other-host.com database_name

 

 

資料導入

    針對使用INTO OUTFILE方式導出的資料，可使用LOAD DATA LOCAL INFILE方式導入資料。

         LOAD DATA LOCAL INFILE '/tmp/backup_v0.txt' INTO TABLE seq_test;

 

 

 mysql> select count(*) from seq_test;
+----------+
| count(*) |
+----------+
|      111 |
+----------+
1 row in set (0.00 sec)
 
mysql> truncate table seq_test;
Query OK, 0 rows affected (0.00 sec)
 
mysql>  LOAD DATA LOCAL INFILE '/tmp/backup_v0.txt' INTO TABLE seq_test;
Query OK, 111 rows affected (0.00 sec)
Records: 111  Deleted: 0  Skipped: 0  Warnings: 0
 
mysql> select count(*) from seq_test;
+----------+
| count(*) |
+----------+
|      111 |
+----------+
1 row in set (0.00 sec)
 

 

 

 　　

 

       

    還可使用mysqlimport工具導入

[root@t-xi-mysql01 tmp]# cp backup_v0.txt seq_test.txt

[root@t-xi-mysql01 tmp]#  mysqlimport -u root -p --local runoob seq_test.txt

Enter password:

runoob.seq_test: Records: 111  Deleted: 0  Skipped: 111  Warnings: 0

 

 

 

將mysqldump導出的資料進行導入

    

  gunzip  -c backup_data.zip>backup_data.sql

  mysql -u root -p

  mysql> source backup_data.sql

 

　　

  
[root@t-xi-mysql01 tmp]# mysqldump -u root -p runoob seq_test|gzip > backup_data.zip
Enter password:
[root@t-xi-mysql01 tmp]#   gunzip  -c backup_data.zip>backup_data.sql
[root@t-xi-mysql01 tmp]#
[root@t-xi-mysql01 tmp]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 18
Server version: 5.1.71 Source distribution
 
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
 
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
 
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
 
mysql> use runoob;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
 
Database changed
mysql> source backup_data.sql
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.01 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 111 rows affected (0.00 sec)
Records: 111  Duplicates: 0  Warnings: 0
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
 
Query OK, 0 rows affected (0.00 sec)
mysql> select count(*) from seq_test;
+----------+
| count(*) |
+----------+
|      111 |
+----------+
1 row in set (0.00 sec)