How to recover a single InnoDB table from a Full Backup_a single innodb table h-优快云博客

本文链接：https://blog.youkuaiyun.com/staricqxyz/article/details/10298929

本文详细介绍了在MySQL环境中设置并使用innodb_file_per_table参数，通过创建表、插入数据和展示查询结果来演示基本数据操作流程。进一步指导如何将数据迁移到指定目录，为数据库管理和维护提供实用技巧。

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You must set var innodb_file_per_table = 1

[root@zhongwc ~]# /service/mysql/bin/mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.6.12-log Master_DB

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.

ZHONGWC--root@(none) 04:12:00>
ZHONGWC--root@(none) 04:12:01>show variables like 'innodb_file_per_table';
+-----------------------+-------+
| Variable_name         | Value |
+-----------------------+-------+
| innodb_file_per_table | ON    |
+-----------------------+-------+
1 row in set (0.00 sec)

ZHONGWC--root@(none) 04:12:03>

create table and insert data

ZHONGWC--root@test 04:14:41>create table test(id int primary key,descs varchar(100));
Query OK, 0 rows affected (0.03 sec)

ZHONGWC--root@test 04:14:53>show create table test\G
*************************** 1. row ***************************
       Table: test
Create Table: CREATE TABLE `test` (
  `id` int(11) NOT NULL,
  `descs` varchar(100) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
1 row in set (0.00 sec)

ZHONGWC--root@test 04:15:04>insert into test values(1,'aaaa'),(2,'bbbb'),(3,'cccc');
Query OK, 3 rows affected (0.00 sec)
Records: 3  Duplicates: 0  Warnings: 0

ZHONGWC--root@test 04:16:07>select * from test;
+----+-------+
| id | descs |
+----+-------+
|  1 | aaaa  |
|  2 | bbbb  |
|  3 | cccc  |
+----+-------+
3 rows in set (0.00 sec)

ZHONGWC--root@test 04:16:15>

First we need to copy all the data to an output directory