mysql change type of column code example

Example 1: mysql alter table add column

ALTER TABLE vendors ADD COLUMN phone VARCHAR(15) AFTER name;

Example 2: alter table column change data type to text mysql

ALTER TABLE tablename MODIFY columnname INTEGER;

Example 3: how to alter table column name in mysql

ALTER TABLE your_table_name RENAME COLUMN original_column_name TO new_column_name;

Example 4: change data type in mysql

ALTER TABLE table_name

CHANGE COLUMN column_name column_name datatype;