Wednesday, July 13, 2016

oracle impdp hacks


h1 := dbms_datapump.open(operation => 'EXPORT', job_mode => 'FULL', remote_link => 'DB_LINK_NAME', version => 'LATEST',job_name =>'MY JOB NAME');

DBMS_DATAPUMP for complete schema export



SET SERVEROUTPUT ON SIZE 1000000
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    => 'EMP_EXPORT',
    version     => 'LATEST');

  DBMS_DATAPUMP.add_file(
    handle    => l_dp_handle,
    filename  => 'SCOTT.dmp',
    directory => 'TEST_DIR');

  DBMS_DATAPUMP.add_file(
    handle    => l_dp_handle,
    filename  => 'SCOTT.log',
    directory => 'TEST_DIR',
    filetype  => DBMS_DATAPUMP.KU$_FILE_TYPE_LOG_FILE);

  DBMS_DATAPUMP.metadata_filter(
    handle => l_dp_handle,
    name   => 'SCHEMA_EXPR',
    value  => '= ''SCOTT''');

  DBMS_DATAPUMP.start_job(l_dp_handle);

  DBMS_DATAPUMP.detach(l_dp_handle);
END;
/



DECLARE
  ind NUMBER;              -- Loop index
  h1 NUMBER;               -- Data Pump job handle
  percent_done NUMBER;     -- Percentage of job complete
  job_state VARCHAR2(30);  -- To keep track of job state
  le ku$_LogEntry;         -- For WIP and error messages
  js ku$_JobStatus;        -- The job status from get_status
  jd ku$_JobDesc;          -- The job description from get_status
  sts ku$_Status;          -- The status object returned by get_status
BEGIN
 
-- Create a (user-named) Data Pump job to do a schema export.
 
  h1 := DBMS_DATAPUMP.OPEN('EXPORT','SCHEMA',NULL,'EXAMPLE1','LATEST');
 
-- Specify a single dump file for the job (using the handle just returned)
-- and a directory object, which must already be defined and accessible
-- to the user running this procedure.
 
  DBMS_DATAPUMP.ADD_FILE(h1,'example1.dmp','DMPDIR');
 
-- A metadata filter is used to specify the schema that will be exported.
 
  DBMS_DATAPUMP.METADATA_FILTER(h1,'SCHEMA_EXPR','IN (''HR'')');
 
-- Start the job. An exception will be generated if something is not set up
-- properly. 
 
  DBMS_DATAPUMP.START_JOB(h1);
 
-- The export job should now be running. In the following loop, the job
-- is monitored until it completes. In the meantime, progress information is
-- displayed.
 
  percent_done := 0;
  job_state := 'UNDEFINED';
  while (job_state != 'COMPLETED') and (job_state != 'STOPPED') loop
    dbms_datapump.get_status(h1,
           dbms_datapump.ku$_status_job_error +
           dbms_datapump.ku$_status_job_status +
           dbms_datapump.ku$_status_wip,-1,job_state,sts);
    js := sts.job_status;
 
-- If the percentage done changed, display the new value.
 
    if js.percent_done != percent_done
    then
      dbms_output.put_line('*** Job percent done = ' ||
                           to_char(js.percent_done));
      percent_done := js.percent_done;
    end if;
 
-- If any work-in-progress (WIP) or error messages were received for the job,
-- display them.
 
   if (bitand(sts.mask,dbms_datapump.ku$_status_wip) != 0)
    then
      le := sts.wip;
    else
      if (bitand(sts.mask,dbms_datapump.ku$_status_job_error) != 0)
      then
        le := sts.error;
      else
        le := null;
      end if;
    end if;
    if le is not null
    then
      ind := le.FIRST;
      while ind is not null loop
        dbms_output.put_line(le(ind).LogText);
        ind := le.NEXT(ind);
      end loop;
    end if;
  end loop;
 
-- Indicate that the job finished and detach from it.
 
  dbms_output.put_line('Job has completed');
  dbms_output.put_line('Final job state = ' || job_state);
  dbms_datapump.detach(h1);
END;
/