Search & Replace

update tablename set field = replace(field,'search_for_this','replace_with_this');

How To Fix MySQL Error 28

MySQL: 1030: got error 28 from server handler

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

Delete anything that’s 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 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