数据库加表
mysql变更格式
数据库：wiki
表名：tb_certificate_pdf_download
CREATE TABLE `tb_certificate_pdf_download` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`company_name_digest` varchar(32) NOT NULL,
`pdf_path` varchar(255) NOT NULL,
`add_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
`lastupdatetime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`),
KEY `company_name_digest` (`company_name_digest`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8