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MySQL Error 28

bob — Tue, 22 Dec 2009 08:52:57 +0000

How To Fix MySQL Error 28

Overview: MySQL: 1030: got error 28 from server handler

cd /tmp
df -i /tmp
df -h /tmp

Delete anything which is not supposed to be there. Stop all databases:

/etc/rc.d/init.d/chkservd stop
/etc/rc.d/init.d/mysql stop

Then fix tables:

cd /var/lib/mysql

Check each letter for errors:

myisamchk -cs a*/*.MYI

Repair where deemed necessary:

myisamchk -r a*/*.MYI
myisamchk -r b*/*.MYI
myisamchk -r c*/*.MYI
myisamchk -r d*/*.MYI
myisamchk -r e*/*.MYI
myisamchk -r f*/*.MYI
myisamchk -r g*/*.MYI
myisamchk -r h*/*.MYI
myisamchk -r i*/*.MYI
myisamchk -r j*/*.MYI
myisamchk -r k*/*.MYI
myisamchk -r l*/*.MYI
myisamchk -r m*/*.MYI
myisamchk -r n*/*.MYI
myisamchk -r o*/*.MYI
myisamchk -r p*/*.MYI
myisamchk -r q*/*.MYI
myisamchk -r r*/*.MYI
myisamchk -r s*/*.MYI
myisamchk -r t*/*.MYI
myisamchk -r u*/*.MYI
myisamchk -r v*/*.MYI
myisamchk -r w*/*.MYI
myisamchk -r x*/*.MYI
myisamchk -r y*/*.MYI
myisamchk -r z*/*.MYI

Turn everything back on:

/etc/rc.d/init.d/chkservd start
/etc/rc.d/init.d/mysql start

Mysql Options Database

bob — Tue, 02 Sep 2008 14:03:19 +0000

Mysql Program support the following switches which you can use either the short single character or more verbose versions. Check it below;

-\?, –help Print usage information.
-d, –debug=[options] Output debug information to log. Generally ‘d:t:o,filename`. See Appendix C for further details.
-d, –debug-info Print debug messages on program exit.
-e, –exec Execute command and quit, –batch is implicit.
-f, –force Continue even if we encounter a SQL error.
-h, –hostname=[hostname] Must be followed by the name of the host you wish to connect to.
-P, –port=[port] The port to use when connecting to the MySQL database engine.
-p, –password=[password] Must be followed by the password of the user account you wish to connect with. Note there can be no space between the -p and the password.
-q, –quick Quick (unbuffered output), may slow down the server if output is suspended.
-s, –silent Tell me less please. (suppress output)
-u, –user=[user] Must be followed by the name of the user account you wish to connect to the daemon with. Not needed if the account name is the same as your login.
-v, –verbose Verbose output. The -v option may be doubled or tripled for more verbose output.
-w, –wait Wait and retry if connection fails.
-B, –batch Run in batch mode. (No prompt and no errors on STDOUT) This is automatic when reading from/to a pipe. Results will be output-ed in a tab separated format, one result line per line of output.
-I, –help Same as -\?.
-V, –version Print out version information and exit.

MySQL Admin Command

bob — Tue, 02 Sep 2008 13:53:21 +0000

Once you install MySQL on your Microsoft Windows operating system, you can reach the command line by going to the Start Menu and choosing [Run]. Type the keyword [cmd] into the text field and press Enter to launch Window’s command line interface.

Here are the command you can execute through Admin Panel ( MySQL Admin Commands);

* Statistics: [prompt]$ mysqladmin version
* List database environment: [prompt]$ mysqladmin variables
* Show if database is running: [prompt]$ mysqladmin ping
* Show databases available:

[prompt]$ mysqlshow

mysql> SHOW DATABASES;

* Delete database: mysql> drop database databasename;
* Show list of active threads in server:

[prompt]$ mysqladmin -h localhost -u root -p processlist

* Delete a database: [prompt]$ mysqladmin drop database-name
* Execute SQL from Linux command line interface:
[prompt]$ mysql -h localhost -u root -p -e “select host,db,user from db” mysql
* Execute SQL command file from Linux command line interface:

[prompt]$ mysql -h localhost -u root -p database-name