mysql5.7 datetime 默认值0000-00-00 00:00:00出错

mysql5.7 datetime 默认值0000-00-00 00:00:00出错

实验环境：MySQL 5.7.17

使用wordpress的表wp_posts

mysql > CREATE TABLE `wp_posts` (    ->   `ID` bigint(20) unsigned NOT NULL AUTO_INCREMENT,    ->   `post_author` bigint(20) unsigned NOT NULL DEFAULT '0',    ->   `post_date` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',    ->   `post_date_gmt` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',    ->   `post_content` longtext NOT NULL,    ->   `post_title` text NOT NULL,    ->   `post_excerpt` text NOT NULL,    ->   `post_status` varchar(20) NOT NULL DEFAULT 'publish',    ->   `comment_status` varchar(20) NOT NULL DEFAULT 'open',    ->   `ping_status` varchar(20) NOT NULL DEFAULT 'open',    ->   `post_password` varchar(20) NOT NULL DEFAULT '',    ->   `post_name` varchar(200) NOT NULL DEFAULT '',    ->   `to_ping` text NOT NULL,    ->   `pinged` text NOT NULL,    ->   `post_modified` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',    ->   `post_modified_gmt` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',    ->   `post_content_filtered` longtext NOT NULL,    ->   `post_parent` bigint(20) unsigned NOT NULL DEFAULT '0',    ->   `guid` varchar(255) NOT NULL DEFAULT '',    ->   `menu_order` int(11) NOT NULL DEFAULT '0',    ->   `post_type` varchar(20) NOT NULL DEFAULT 'post',    ->   `post_mime_type` varchar(100) NOT NULL DEFAULT '',    ->   `comment_count` bigint(20) NOT NULL DEFAULT '0',    ->   PRIMARY KEY (`ID`),    ->   KEY `post_name` (`post_name`(191)),    ->   KEY `type_status_date` (`post_type`,`post_status`,`post_date`,`ID`),    ->   KEY `post_parent` (`post_parent`),    ->   KEY `post_author` (`post_author`)    -> ) ENGINE=innodb AUTO_INCREMENT=536 DEFAULT CHARSET=utf8;ERROR 1067 (42000): Invalid default value for 'post_date'

出现以上问题：是因为mysql5.7版本后，sql_mode参数被设置了NO_ZERO_IN_DATE,NO_ZERO_DATE

mysql > show variables like 'sql_mode';+---------------+-------------------------------------------------------------------------------------------------------------------------------------------+| Variable_name | Value                                                                                                                                     |+---------------+-------------------------------------------------------------------------------------------------------------------------------------------+| sql_mode      | ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION |+---------------+-------------------------------------------------------------------------------------------------------------------------------------------+1 row in set (0.01 sec)

解决方法：

方法一：临时修改方法

mysql> set global  sql_mode='ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION' ;mysql> set session  sql_mode='ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION' ;

方法二：永久修改方法,需要重启mysql服务:修改mysql的配置文件my.cnf,添加以下参数

 sql_mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION //实际是去除NO_ZERO_IN_DATE,NO_ZERO_DATE

方法三：修改datetime的默认值