Import/export from one oracle db to anothe roracle db

Question

Hi All,
I would like to import and export data from one oracle database to another oracle database. Can any one please suggest me/provide me any script if available.
I am following Datapump IMPDP and EXPDP. I would like to do this data pump process every time. So I wolud like to do this task as automate. So please provide me any script for automating this job
or let me know if there is any easy method to do this process.. I would like to have a script and am uising Oracle 11.2.0.3.
Thanks

Answer 1

Hi,
Below Anonymous block Exports the 'HR' schema:
DMPDIR -- Directory object where you want to create the dmp files
DECLARE
  l_dp_handle      NUMBER;
  l_last_job_state VARCHAR2(30) := 'UNDEFINED';
  l_job_state      VARCHAR2(30) := 'UNDEFINED';
  l_sts KU$_STATUS;
BEGIN
  l_dp_handle                          := DBMS_DATAPUMP.open( operation => 'EXPORT', job_mode => 'SCHEMA', remote_link => NULL, job_name => 'SCHEMA_EXPORT', version => 'LATEST');
  DBMS_DATAPUMP.add_file( handle        => l_dp_handle, filename => 'SCHEMA_EXPORT.dmp', directory => 'DMPDIR');
  DBMS_DATAPUMP.add_file( handle        => l_dp_handle, filename => 'SCHEMA_EXPORT.log', directory => 'DMPDIR', filetype => DBMS_DATAPUMP.KU$_FILE_TYPE_LOG_FILE);
  DBMS_DATAPUMP.metadata_filter( handle => l_dp_handle, name => 'SCHEMA_EXPR', value => '= ''HR''');
  DBMS_DATAPUMP.start_job(l_dp_handle);
  DBMS_DATAPUMP.detach(l_dp_handle);
END;
Now you can use this dmp file to import the 'HR' schema in the required database.
Below Anonymous block imports the 'HR' schema:
DECLARE
dph NUMBER;
BEGIN
  dph := dbms_datapump.open(operation => 'IMPORT', job_mode =>
  'SCHEMA',job_name => 'SCHEMA_IMPORT');
  dbms_datapump.add_file(handle => dph,filename =>
  'SCHEMA_EXPORT.dmp', directory => 'DMPDIR',filetype=>1);
  dbms_datapump.add_file(handle => dph,filename =>
  'SCHEMA_IMPORT.log',directory => 'DMPDIR',filetype=>3);
  dbms_datapump.start_job(dph);
  dbms_datapump.detach(dph);
END;