add data to column sql code example

Example 1: add column to table sql

ALTER TABLE table_name ADD column_name varchar(50);

Example 2: sql insert

-- Note: This is specifically for SQL - Oracle
-- ---------------------------------------------------------------
-- OPTION 1: Insert specific values (other values will be null)

-- syntax 
INSERT INTO <TABLE_NAME> (<column1>,<column2>,<column3>,...) 
VALUES (<value1>,<value2>,<value3>,...);

-- example
INSERT INTO SALES (SALE_ID,ITEM_ID,QUANTITY,AMOUNT)
VALUES (631,13,4,59.99);
-- ---------------------------------------------------------------
-- OPTION 2: Insert a value for every field

-- syntax
INSERT INTO <TABLE_NAME> VALUES (<value1>,<value2>,...,<valueN>);

-- example (SALES table only consists of 4 columns)
INSERT INTO SALES VALUES (631,13,4,59.99);
-- ---------------------------------------------------------------

Example 3: 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;

Example 4: insert query in sql

INSERT INTO table_name (column1, column2, column3, ...)
VALUES (value1, value2, value3, ...);