在sql中添加列

代码示例

sql添加列

ALTER TABLE Customers
ADD Email varchar(255);

追加列sql

ALTER TABLE table_name
ADD column_name datatype;

--example
ALTER TABLE Customers
ADD Email varchar(255);

在sql中添加列

ALTER TABLE `fb_banners`
ADD `city_id` BIGINT(20) UNSIGNED NULL DEFAULT NULL AFTER `BannerID`,
ADD INDEX `Foreign_city_id_banners` (`city_id`) USING BTREE,
ADD CONSTRAINT `Foreign_city_id_banners` FOREIGN KEY (`city_id`) REFERENCES `foodsafari`.`fb_cities` (`id`) ON UPDATE CASCADE ON DELETE CASCADE;

将列添加到表sql

ALTER TABLE table_name ADD column_name varchar(50);

在表中添加新列

ALTER TABLE table ADD [COLUMN] column_name;

sql如何添加列


ALTER TABLE table_name

ADD column_name datatype;

其他语言

此页面有其他语言版本

empty row

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empty row

sql server if exists update else insert

如果行不存在，sqlite update会创建一个新行吗

在sql中添加列

代码示例

sql添加列

追加列sql

在sql中添加列

将列添加到表sql

在表中添加新列

sql如何添加列

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