1.修改表的属性,内部表和外部表;
ALTER TABLE tablename SET TBLPROPERTIES ('EXTERNAL'='TRUE');
2.修改表的字段注释;
alter table tablename change column filedname `filedname` string COMMENT '';
3.删除分区
alter table tablename drop partition(dt = '****');
1.修改表的属性,内部表和外部表;
ALTER TABLE tablename SET TBLPROPERTIES ('EXTERNAL'='TRUE');
2.修改表的字段注释;
alter table tablename change column filedname `filedname` string COMMENT '';
3.删除分区
alter table tablename drop partition(dt = '****');