How to change column name and min for varchar type in MYSQL

Question

If a table is already constructed and i wann to change one of its column name permanently(unlike as) how can i do that?

Did min works for varchar type if so then what would be the output?

Answer 1

//to change column name & datatype (if required)

ALTER TABLE tablename
CHANGE oldName newName varchar(100);

https://www.sololearn.com/learn/SQL/1872/