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首页 / 数据库 / MySQL / EXP/IMP 导出生产库表的指定数据到测试库一例

一般来讲,EXP/IMP是上一代导出导入程序,EXPDP/IMPDP是新一代的导出导入程序。对于大数据量的导出导入首选EXPDP/IMPDP,可以用到并行度,对表空间等操作上也更加的灵活。对于小数据量的迁移,可以使用exp/imp,操作更简单。需求: exp 导出  A库(11.2.0.3)zjy用户的分区表t_jingyu_part部分数据,数据表空间 dbs_d_jingyu,索引表空间dbs_i_jingyu.imp 导入  B库(11.2.0.4)test用户下,test用户的默认表空间dbs_d_test。A库zjy用户下准备工作:create tablespace dbs_d_jingyu datafile "+data" size 100M autoextend off;
create tablespace dbs_i_jingyu datafile "+data" size 20M autoextend off;
create user zjy identified by zjy default tablespace dbs_d_jingyu; create table t_jingyu_part(
id number,
deal_date date,
area_code number,
contents varchar2(4000))
partition by range(deal_date)
(partition p1 values less than(to_date("2014-02-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p2 values less than(to_date("2014-03-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p3 values less than(to_date("2014-04-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p4 values less than(to_date("2014-05-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p5 values less than(to_date("2014-06-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p6 values less than(to_date("2014-07-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p7 values less than(to_date("2014-08-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p8 values less than(to_date("2014-09-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p9 values less than(to_date("2014-10-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p10 values less than(to_date("2014-11-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p11 values less than(to_date("2014-12-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p12 values less than(to_date("2015-01-01","YYYY-MM-DD")) tablespace dbs_d_jingyu,
partition p_max values less than(maxvalue) tablespace dbs_d_jingyu ); insert into t_jingyu_part(id, deal_date, area_code, contents)
select rownum, to_date(to_char(sysdate-365,"J")+trunc(dbms_random.value(0,365)),"J"), ceil(dbms_random.value(590,599)), rpad("*",400,"*") from dual
connect by rownum <= 100000;
commit;create index idx_t_jingyu_part_id on t_jingyu_part(id, area_code) local tablespace dbs_i_jingyu;select count(1) from t_jingyu_part partition(P1);
select count(1) from t_jingyu_part partition(P2);select count(1) from t_jingyu_part where deal_date >= to_date("2014-11-11","yyyy-mm-dd") and deal_date <= to_date("2014-12-12","yyyy-mm-dd");exp zjy/zjy parfile=exp.parfile=t_jingyu_part.dmp
log=exp_t_jingyu_part.log
tables=t_jingyu_part
query="where deal_date >= to_date("2014-11-11","yyyy-mm-dd") and deal_date <= to_date("2014-12-12","yyyy-mm-dd")"
statistics=none在可以使用直接路径导出的情景建议使用直接路径导出:direct=y 但在本例中不适用。B库test用户:create tablespace dbs_d_test datafile "+data" size 100M autoextend off;
create user test identified by test default tablespace dbs_d_test;注:如果按需求,不在B库建立原表在A库时对应的表空间,就需要先在B库建立表,指定B库的表空间,比如dbs_d_test;然后再imp导入,否则必须先建立之前的表空间。imp test/test file=t_jingyu_part.dmp log=imp_t_jingyu_part.log buffer=1024000 ignore=y full=y RESUMABLE=y----------------------------华丽丽的分割线----------------------------Oracle导入导出expdp IMPDP详解 http://www.linuxidc.com/Linux/2014-04/99932.htmOracle 10g expdp导出报错ORA-4031的解决方法 http://www.linuxidc.com/Linux/2014-04/99842.htmOracle 10gr2 rac expdp 报错UDE-00008 ORA-31626 http://www.linuxidc.com/Linux/2014-03/98984.htmOracle中利用expdp/impdp备份数据库的使用说明 http://www.linuxidc.com/Linux/2014-01/95568.htmOracle备份还原(expdp/impdp) http://www.linuxidc.com/Linux/2014-06/102789.htm
 
----------------------------Expdp/Impdp的相关参数----------------------------更多Oracle相关信息见Oracle 专题页面 http://www.linuxidc.com/topicnews.aspx?tid=12本文永久更新链接地址