Detailed steps for MySQL to recover data through IBD files

Recovery steps

1、 Create database （ Create at will ）

2、 Create data table （ remarks ： The table structure should be consistent with the table structure to be restored ,row_format Want to be with ibd Of documents row_format Agreement , otherwise , It will prompt that the two are inconsistent . At present row_format=dynamic）

3、 View the properties of the table

We use ：show table status like ‘matlab’\G, View the properties of the table

remarks ： When creating tables row_format Inconsistent with table attributes , be based on innodb yes , To put row_format Set to dynamic when , Need modification mysql Global configuration for , Directly in myql Modify... In the command ：set global innodb_file_format=Barracuda;

4、 Table error information view show warnings

5、 explain

When we restore the table , Make sure that row_format and ibd Consistency of documents , If ibd File is compact Words , When you need to create a table , Set to row_format=compact, In recovery , Take care of yourself , From 6 Step on , Focus on how to recover .

6、 The first step of recovery ： Remove tablespaces

**alter table matlab DISCARD TABLESPACE;**

7、 Step two of recovery ： Will back up ibd file , Put it in mysql->data-> The name of the created database ->, take ibd Copy to this directory , As shown in the figure below
See the specific path

-- Use sql Query data directory **show global variables like '%datadir%';**

8、 Step three of recovery ： Re import the table space

**alter table matlab IMPORT TABLESPACE;**

9、 When the previous step is completed , We found that the data in the database has been completely recovered

10、 The structure of the data table must be consistent with that of the data table before recovery , Otherwise, the recovery fails , Lead to mysql Process restart , Details need to be checked mysql Of error Log analysis , in addition ,mysql Of CE Tools provide a convenient mysql Parameter configuration modification function

Add ：Innodb And MyISAM The difference between storing files

Innodb Storage files are divided into ：.frm,.idb
    .frm： Storage table definition
    .ibd： Store data and index
MyISAM Storage files are divided into ：.frm,.myd,.myi
    .frm： Storage table definition
    .myd： Store the data
    .myi： Storage index

summary

This is about Mysql adopt ibd This is the end of the article on file recovery data , More about Mysql ibd Please search the previous articles of the software development network or continue to browse the relevant articles below. I hope you can support the software development network in the future ！