SQL adicionar uma coluna
ALTER TABLE Customers
ADD Email varchar(255);
sqlserver Adicionar coluna à tabela
ALTER TABLE dbo.doc_exa
ADD column_b VARCHAR(20) NULL,
column_c INT NULL ;
alterar a tabela Adicionar coluna
ALTER TABLE table
ADD COLUMN column VARCHAR (255) NOT NULL AFTER column;
servidor sql alterar coluna
ALTER TABLE table_name
ALTER COLUMN column_name new_data_type(size);
adicionar uma coluna em sql
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;
adicionar uma coluna ao quadro sql
ALTER TABLE table_name ADD column_name varchar(50);