统一修改数据库表名字段大小写

select table_name from information_schema.tables where table_schema='lcxtest' and table_type='base table'

alter table user_role rename USER_ROLE;

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

SELECT
    COLUMN_NAME,
    COLUMN_TYPE
FROM
    information_schema.COLUMNS
WHERE
    table_schema = 'lcxtest'
AND table_name = 'USER_ROLE'