最近把mysql升級到5.7了，wordpress導數據報錯
Invalid default value for 'comment_date'
原因出在類似這樣的語句
DROP TABLE IF EXISTS `wp_comments`; CREATE TABLE `wp_comments` ( `comment_ID` bigint(20) UNSIGNED NOT NULL AUTO_INCREMENT, `comment_post_ID` bigint(20) UNSIGNED NOT NULL DEFAULT 0, `comment_author` tinytext CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL, `comment_author_email` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '', `comment_author_url` varchar(200) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '', `comment_author_IP` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '', 0) NOT NULL DEFAULT '0000-00-00 00:00:00'0) NOT NULL DEFAULT '0000-00-00 00:00:00'11) NOT NULL DEFAULT 0, `comment_approved` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '1', `comment_agent` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '', `comment_type` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '', `comment_parent` bigint(20) UNSIGNED NOT NULL DEFAULT 0, `user_id` bigint(20) UNSIGNED NOT NULL DEFAULT 0, PRIMARY KEY (`comment_ID`) USING BTREE, INDEX `comment_post_ID`(`comment_post_ID`) USING BTREE, INDEX `comment_approved_date_gmt`(`comment_approved`, `comment_date_gmt`) USING BTREE, INDEX `comment_date_gmt`(`comment_date_gmt`) USING BTREE, INDEX `comment_parent`(`comment_parent`) USING BTREE, INDEX `comment_author_email`(`comment_author_email`(10)) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 35 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_520_ci ROW_FORMAT = Dynamic;
這種報錯多是你mysql升級到5.7而引起的默認值不兼容的問題。看看你的字段名是什么，我的是時間字段，類型是datetime。想到可能是類型的默認值被限制了，查看 sql_mode。果然：NO_ZERO_IN_DATE,NO_ZERO_DATE這兩個參數限制時間不能為0
查看 sql_mode
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 (0.00 sec) mysql>
臨時修改：
mysql> set session -> sql_mode='ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql>
永久修改：
可以直接修改my.cnf文件
例如： vim /etc/my.cnf
在[mysqld]下面添加如下列：
sql_mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,
ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,
NO_ENGINE_SUBSTITUTION
ok問題解決，現在你導入或者創建表時看看！