ALTER TABLE table_name

  MODIFY column_name column_definition

    [ FIRST | AFTER column_name ];

UPDATE employees 

SET 

    email = 'mary.patterson@classicmodelcars.com'

WHERE

    employeeNumber = 1056;Code language: SQL (Structured Query Language) (sql)

ALTER TABLE Customers

MODIFY COLUMN age VARCHAR(2);

UPDATE employees 

SET 

    lastname = 'Hill',

    email = 'mary.hill@classicmodelcars.com'

WHERE

    employeeNumber = 1056;Code language: SQL (Structured Query Language) (sql)

#Alter is used

#alter table TableName change CurrentColumnName NewColumnName Specification(size);

alter table TableName change name firstname varchar(30);

​

mysql> alter database university character set utf8 collate utf8_general_ci;