modify command in sql code example

Example 1: sql change column types

ALTER TABLE table_name
ALTER COLUMN column_name datatype;

-- Example
ALTER TABLE product
ALTER COLUMN description VARCHAR(250);

Example 2: sql add column

ALTER TABLE Customers
ADD Email varchar(255);

Example 3: modify column name in sql

ALTER TABLE `Table Name` MODIFY COLUMN `Column Name` Datatype(Size);

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