hive 常用命令

alter table table_name set TBLPROPERTIES('EXTERNAL'='FALSE');

alter table yum_area_ods.ods_full_city_mapping add columns(taco_city_code string comment 'taco城市code') cascade;

alter table yum_area_ods.ods_full_city_mapping SET SERDEPROPERTIES('serialization.null.format' = '\\N');