[Err] 1294 - Invalid ON UPDATE clause for ‘comment_PHP

my sql版本低原因导致。

不想卸载重装的方法：创建游标

改前：

CREATE TABLE `user`  (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '用户登录表',
  `account` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '用户账户',
  `password` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '用户密码',
  `email` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '邮箱',
  `phone` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '用户电话',
  `user_name` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '用户昵称',
  `sex` int(2) NULL DEFAULT 1 COMMENT '用户性别（0女，1男）',
  `birthday` datetime NULL DEFAULT NULL COMMENT '出生日期',
  `record_date` datetime NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP COMMENT '注册日期',
  `is_vip` int(2) NULL DEFAULT 0 COMMENT '是否VIP用户',
  `role_id` int(11) NULL DEFAULT 0 COMMENT '权限ID(0普通用户，1管理员)',
  PRIMARY KEY  USING BTREE (`id`)
) ENGINE = InnoDB AUTO_INCREMENT = 13 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;

改后：

CREATE TABLE `user`  (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '用户登录表',
  `account` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '用户账户',
  `password` varchar(100) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '用户密码',
  `email` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '邮箱',
  `phone` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '用户电话',
  `user_name` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT '' COMMENT '用户昵称',
  `sex` int(2) NULL DEFAULT 1 COMMENT '用户性别（0女，1男）',
  `birthday` datetime NULL DEFAULT NULL COMMENT '出生日期',
  `record_date` datetime NULL DEFAULT NULL    COMMENT '注册日期',
  `is_vip` int(2) NULL DEFAULT 0 COMMENT '是否VIP用户',
  `role_id` int(11) NULL DEFAULT 0 COMMENT '权限ID(0普通用户，1管理员)',
  PRIMARY KEY  USING BTREE (`id`)
) ENGINE = InnoDB AUTO_INCREMENT = 13 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
DELIMITER //
CREATE TRIGGER `user` BEFORE UPDATE ON `user` 
 FOR EACH ROW SET NEW.`record_date` = NOW()
//
DELIMITER ;