$ rpm -qa | grep mysql
qt4-database-plugin-mysql-4.7.3-1pclos2011
mysql-common-core-5.1.55-2pclos2011
mysql-workbench-5.2.34-1pclos2011
mysql-5.1.55-2pclos2011
mysql-client-5.1.55-2pclos2011
libmysql16-5.1.55-2pclos2011
mysql-common-5.1.55-2pclos2011
mysql-core-5.1.55-2pclos2011
php-mysql-5.3.3-2pclos2011
libmysqlcppconn6-1.1.0-0.7.bzr916pclos2011
perl-DBD-mysql-4.013-2pclos2010
php-mysqli-5.3.3-2pclos2011
They are all there.
I can connect fine with phpMyAdmin in a browres via
http://localhost/phpMyAdmin/