Exp/imp related problem

Question

Hi all,
I have one problem in Oracle 9.2.0.8 onRHEL4. Iwant to use exp/imp to update one table from one server to another.
Suppose I have one table abc on A server and it is having around 1 million records and another B server is also having the same no. of records and some of the record have been changed to A server and i also want to imp the same record to another server B.Is there any paramneter in IMP.
Please suggest me.

Answer 1

Hi,
Kamran Agayev A. wrote:
user00726 wrote:
but how would i know which table has been updated or modifiedUsing MERGE funtion, you'll merge two tables. This command will updated changed rows and insert non-inserted rows to the second table and make it as the same as the first tableSQL> create table azar(pid number,sales number,status varchar2(20));
Table created.
SQL> create table azar01(pid number,sales number,status varchar2(20));
Table created.
SQL> insert into azar01 values(1,12,'CURR');
1 row created.
SQL> insert into azar01 values(2,13,'NEW');
1 row created.
SQL> insert into azar01 values(3,15,'CURR');
1 row created.
SQL> insert into azar values(2,24,'CURR');
1 row created.
SQL> insert into azar values(3,0,'OBS');
1 row created.
SQL> insert into azar values(4,42,'CURR');
1 row created.
SQL> commit;
Commit complete.
SQL> select * from azar01;
PID SALES STATUS
1 12 CURR
2 13 NEW
3 15 CURR
SQL> select * from azar;
PID SALES STATUS
2 24 CURR
3 0 OBS
4 42 CURR
SQL> merge into azar01 a using azar b on (a.pid=b.pid) when matched
2 then update set a.sales=a.sales + b.sales, a.status=b.status
3 delete where a.status='OBS'
4 when not matched
5 then insert values(b.pid,b.sales,'NEW');
3 rows merged.
SQL> select * from azar01;
PID SALES STATUS
1 12 CURR
2 37 CURR
4 42 NEW
Hello Sir, is this correct?
Regards
S.Azar
DBA