在sql中向表中添加列

代码示例

sql添加列

ALTER TABLE Customers
ADD Email varchar(255);

alter table添加列

ALTER TABLE table
ADD COLUMN column VARCHAR (255) NOT NULL AFTER column;

alter table添加列

ALTER TABLE table_name 
ADD column_name datatype;

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;

类似页面

带有示例的类似页面

添加列T-SQL

添加列

如何将新列添加到表sql

alter table添加新列sql server

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