How to recover data from ibd file in mysql

Mysql method to restore data from ibd file: first create a table with the same table structure as the original table structure; then delete the newly created table space; then copy the [.ibd] file to be restored Go to the target database folder and modify the file permissions; finally import the table space.

The operating environment of this tutorial: windows7 system, mysql5.6&&mysql5.7 version, Dell G3 computer.

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##mysql Method to restore data from ibd file:

1. Create a table whose structure is consistent with the original table structure:

CREATE TABLE <table_name> ...;

2. Delete the newly created table space:

ALTER TABLE <table_name> DISCARD TABLESPACE;

3. Copy the

.ibd file to be restored to the target database folder, and modify the file permissions:

cp <table_name>.ibd /var/lib/mysql/<database_name>
cd /var/lib/mysql/<database_name>
chown mysql:mysql <table_name>.ibd

4. Import the table space:

ALTER TABLE <table_name> IMPORT TABLESPACE;

The following problems may also occur:

1. Mysql 1808 error:

Error Code: 1808. Schema mismatch (Table has ROW_TYPE_DYNAMIC row format, <table_name>.ibd file has ROW_TYPE_COMPACT row format.)

This is an error caused by restoring the mysql 5.6 file to the mysql 5.7 version and needs to be built Add

ROW_FORMAT=COMPACT after the table statement, as shown below:

create table test(id int, name varchar(10)) row_format=compact;

2, mysql 1812 error:

Error Code:1812. Tablespace is missing for table <table_name>

copy ibd file is not authorized, please follow the second step Step execution permission

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