Error in mysqldump and error in mysqldump

Error in mysqldump and error in mysqldump

When you use the mysqldump command to back up the entire database, the following error is returned:

Mysqldump: Couldn't execute 'show triggers like 'userlog'': Got error 28 from storage engine (1030)

View disk space

[Root @ localhost ~] # Df-h
File System capacity used available % mount point
/Dev/sda1 9.5G 9.1G 0 100%/
/Dev/sda4 3.2G 70 M 3.0G 3%/mnt/backup

We can see that the disk space is insufficient. After deleting some files, run OK.

What is the error when mysql uses mysqldump?

Mysqldump is run under the operating system command line.
Not running in mysql Command Line

Go to the bin folder under the MySQL directory.

Mysqldump-u username-p Database Name> exported file name

C: \ Program Files \ MySQL Server 5.5 \ bin> mysqldump-u root-p Test> test. SQL

Enter password :********

C: \ Program Files \ MySQL Server 5.5 \ bin> dir *. SQL
The volume in drive C is not labeled.
The serial number of the volume is 406A-C32E.

C: \ Program Files \ MySQL Server 5.5 \ bin directory

39,574 test. SQL
1 file, 39,574 bytes
0 directories, 5,498,294,272 available bytes

Using mysqldump provided by mysql cannot be backed up, and you can't even view help. I tried it many times and got an error message.

You are using an error. Do not log on to the command line mode of mysql. Open cmd directly without logging on to mysql.