sql alter column size
snippet in sql

sql change column types

user9419

ALTER TABLE table_name
ALTER COLUMN column_name datatype;

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

sql alter column size

user5581

ALTER TABLE table_name
ALTER COLUMN column_name datatype;

sql modify column

user8142

ALTER TABLE table_name
ALTER COLUMN column_name datatype;
--ex.
ALTER TABLE Customers
ADD Email varchar(255);