SQL

SQL Modify Column in a Table -MySQL

ALTER TABLE Customers
MODIFY COLUMN age VARCHAR(2);

update column mysql with alter

ALTER TABLE table_name
  MODIFY column_name column_definition
    [ FIRST | AFTER column_name ];

change column in mysql

#Alter is used
#alter table TableName change CurrentColumnName NewColumnName Specification(size);
alter table TableName change name firstname varchar(30);