For example:

Invalid SQL: SELECT * FROM `something` WHERE `id` = '151' ORDER BY `someid` ASC LIMIT 0,20; (Can't open file: 'sometable.MYI' (errno: 145))

Login to your server as root.

Firstly check the status of MySQL on your dedicated server. Normally, it should be ok – as you’re getting this error.

The database table can be repaired only if the Mysql server is in running status. You can check the status by the command.

root# /etc/init.d/myssql status

Now, login to the MySQL database for a required user.

mysql> mysql –u databaseusername –p database password databasename

You need to select that particular database having problem.

mysql> use databasename;

Now, you will have to check whether the table is corrupted. On giving the below command you will get a NULL value as your output if it is   corrupted otherwise it’s alright.

mysql> check table tablename;

If the table is corrupted for that particular database, then you need
to repair the table by giving the following command.

mysql> repair table tablename;

This will repair the table for you.
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Now, you have to grant permissions for this click on “MySQL database” icon under cPanel. When you scroll down you will see heading “Access Host” the default host is “localhost” which you can see over there. In the box there you can add the IP address that you want to allow connection from.

If you want all IP addresses within a range to work you can use a wildcard (%) symbol, for example:

192.168.1.% will allow any user from 192.168.1.1 to 192.168.1.255 to connect.

The wildcard symbol on its own will allow any user to connect, assuming that they have the username and password for a database.

That’s it!

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root@server# mysqladmin processlist

Or

root@server# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 121572 to server version: 4.1.22-standard

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer.

mysql> SHOW FULL PROCESSLIST;

That’s it!

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mysql cpanelusername_database < sqlfilename.sql

And, if you want to export the database to a sql file – the command to do this is:

mysqldump cpanelusername_datbase > databasename.sql

That’s it!

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To check the which all mysql rpm’s are available use the command:

rpm -qa | grep -i mysql-

First of all take a backup of /var/lib/mysql, and also ask the other users to keep a backup it with them. This can also be a .sql file. The command to take a backup is:

cp /var/lib/mysql /var/lib/mysql.bk

Now, you will have to edit the cPanel config file and make manual changes under this, so edit it with the command:

nano /var/cpanel/cpanel.config

And here, find for the line “mysql-version=5.0” and change it to “mysql-version=4.1”

Now, we will forcefully install mysql by the following command:

/scripts/mysqlup --force

You can now check again with the command:

rpm -qa | grep -i mysql-

This is done and worked for me.

Let us know if this has helped you and have any suggestions on this.

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