Add column in sql

Sqlserver add column to table

ALTER TABLE dbo.doc_exa 
ADD column_b VARCHAR(20) NULL, 
	column_c INT NULL ;

Alter table add column

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

Sql server alter column

ALTER TABLE table_name 
ALTER COLUMN column_name new_data_type(size);

Source: sqlservertutorial.net

Create column sql server

ALTER TABLE table_name
ADD column_name datatype;

Append column sql

ALTER TABLE table_name
ADD column_name datatype;--exampleALTER TABLE CustomersADD Email varchar(255);

Add column in 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;

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