MySQL 服务器插件可以访问服务器的 “插件服务”。插件服务接口通过公开插件可以调用的服务器功能来补充插件 API。有关编写插件服务的开发者信息，请参阅 MySQL 插件服务。以下各节描述了在 SQL 和 C 语言级别可用的插件服务。MySQL server plugins have access to server “plugin services.” The plugin services interface complements the plugin API by exposing server functionality that plugins can call. For developer information about writing plugin services, see MySQL Services for Plugins. The following sections describe plugin services available at the SQL and C-language levels.