exp导出分区表数据

---- 创建range分区表

    create table pdba (id number, time date) 
      partition by range (time)(
        partition p1 values less than (to_date('2017-1-1', 'yyyy-mm-dd')),
        partition p2 values less than (to_date('2017-2-1', 'yyyy-mm-dd')),
        partition p3 values less than (to_date('2017-3-1', 'yyyy-mm-dd')),
        partition p4 values less than (maxvalue)
      );


------ 批量插入数据
    DECLARE
      v_id  INTEGER := 0 ;
      v_date DATE := to_date('2016-12-31','yyyy-mm-dd');
    BEGIN
      LOOP
        v_id := v_id + 1;
        v_date :=  v_date + 1;
        INSERT INTO PDBA VALUES(v_id,v_date );
        EXIT WHEN v_id = 150 ;
      END LOOP;
    END ;


------ 查询表分区情况
    select table_name,partition_name from user_tab_partitions where table_name='PDBA';
---- 查询表内数据情况
     SELECT 'PDBA-p1', COUNT(*)  FROM PDBA PARTITION(P1) UNION
     SELECT 'PDBA-p2', COUNT(*)  FROM PDBA PARTITION(P2) UNION
     SELECT 'PDBA-p3', COUNT(*)  FROM PDBA PARTITION(P3) UNION

     SELECT 'PDBA-p4', COUNT(*)  FROM PDBA PARTITION(P4) ;

--导出命令

  --只导一个分区

  C:\Users\lzhpc>exp index_ts/1 grants=y file=123.dmp tables=pdba:p1

  --导两个分区

 C:\Users\lzhpc>exp index_ts/1 grants=y file=123.dmp tables=pdba:p2,pdba:p3

  --导出整个表

 C:\Users\lzhpc>exp index_ts/1 grants=y file=123.dmp tables=pdba