Question

我是MySQL的新手，想在阅读教程后创建这个表我写了这个命令但是在MySQL Workbench上它显示了4行created_at属性的错误：

CREATE TABLE tweetMelbourne (
    `id` INT(11) NOT NULL AUTO_INCREMENT, 
    `geo_type` VARCHAR(8) CHARACTER SET utf8,
    `created_at` DATETIME CHARACTER SET utf8 NOT NULL ,
    `geo_coordinates_latitude` decimal(12,9) DEFAULT NULL,
    `geo_coordinates_longitude` decimal(12,9) DEFAULT NULL,
    `place_full_name` VARCHAR(35) CHARACTER SET utf8,
    `place_country` VARCHAR(15) CHARACTER SET utf8,
    `place_type` VARCHAR(18) CHARACTER SET utf8,
    `place_bounding_box_type` VARCHAR(10) CHARACTER SET utf8,
    `place_bounding_box_coordinates_NE_lat` decimal(12,9) DEFAULT NULL,
    `place_bounding_box_coordinates_NE_long` decimal(12,9) DEFAULT NULL,
    `place_bounding_box_coordinates_SW_lat` decimal(12,9) DEFAULT NULL,
    `place_bounding_box_coordinates_SW_long` decimal(12,9) DEFAULT NULL,
    `place_country_code` VARCHAR(5) CHARACTER SET utf8,
    `place_name` VARCHAR(17) CHARACTER SET utf8,
    `text` VARCHAR(140) CHARACTER SET utf8,
    `user_id` INT,
    `user_verified` VARCHAR(5) CHARACTER SET utf8,
    `user_followers_count` INT,
    `user_listed_count` INT,
    `user_friends_count` INT,
    `user_location` VARCHAR(30) CHARACTER SET utf8,
    `user_following` VARCHAR(5) CHARACTER SET utf8,
    `user_geo_enabled` VARCHAR(5) CHARACTER SET utf8,
    `user_lang` VARCHAR(5) CHARACTER SET utf8,
     PRIMARY KEY (id)
);

错误是：

Error Code: 1064. You have an error in your SQL syntax; check the manual that 
corresponds to your MariaDB server version for the right syntax to use near 'CHARACTER SET utf8

Answer 1

尝试删除'CHARACTER SET utf8'

Answer 2

谢谢你们的工作。我最后使用了DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci。因此，我认为不需要为datetime定义字符集，因为它由数字组成，并且不包含字符。

MySQL：字符集utf8给出了datetime

2 个答案: