hive删除分区SQL语句 删除hive分区表

-- 查看分区  

show partitions  table_name;

-- 删除指定分区  
      alter table shiye_data_center_new.dwd_mt_buss_event_cl drop if exists partition(filedate="xxx", space="xxx");
      --  删除库
      drop database if exists db_name;
      --  强制删除库
      drop database if exists db_name cascade;
      --  删除表
      drop table if exists employee;
      --  清空表
      truncate table employee;
      --  清空表，第二种方式
      insert overwrite table employee select * from employee where 1=0; 
      --  删除分区
      alter table employee_table drop partition (stat_year_month>='2018-01');
      --  按条件删除数据
      insert overwrite table employee_table select * from employee_table where id>'180203a15f';