MySQL修改表名，列名，列类型，添加表列，删除表列alter table test rename test1; --修改表名alter table test add column name varchar(10); --添加表列alter table test drop column name; --删除表列alter table test modify address char(10) --修改表列类型||alter table test change address address char(40)alter table test change column address address1 varchar(30)--修改表列名
