Cloud computing is a good way to raise productivity of offered service without investments into new infrastructure, training of the personnel or software acquisition. This technology expands potential possibilities of existing information systems. In recent years cloud computing grew from good business concept to one of the most demanded industry in information technologies. The paper contains a short review of different cloud database providers which uses MySQL as a basis. Technical nuances, potential problems and risks related to migration of the existing MySQL databases to the new environment are reviewed. In the paper we try to review the actual possibilities of the new platform and compare the cloud DBaaS (database as a service) solutions which are implemented with MySQL database management system widely used in the web.