PL/SQL Data Pump Import Using DB Links - Modified Oracle Example

This is a neat example that tweaked slightly. This example is a data pump import across the wire. No dump files or OS access required.

/*
Oracle Data Pump Import Using database DB link
From Oracle Corporation Example
Minor modifications by George Milliken 02-10-2011

Assumes you are on the destination when you execute the script
Assumes the destination schema exists but is empty (you could change this by changing the parms)


*/
CREATE OR REPLACE PROCEDURE SYS.copy_schema3 (
source_schema in varchar2, 
destination_schema in varchar2, 
new_password in varchar2,
network_link in varchar2 default 'loopback'
) as
  ind NUMBER;              -- Loop index
  spos NUMBER;             -- String starting position
  slen NUMBER;             -- String length for output
  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
  q varchar2(1) := chr(39); -- single quote
  
BEGIN

dbms_output.put_line('Source Schema [' || source_schema ||']');
dbms_output.put_line('Destination Schema [' || destination_schema ||']');

-- Create a (user-named) Data Pump job to do a schema import
  h1 := dbms_datapump.open ('IMPORT','SCHEMA',network_link);

-- A metadata filter is used to specify the schema that will be exported.
dbms_datapump.metadata_filter (h1,'SCHEMA_LIST',q||source_schema||q);

  DBMS_DATAPUMP.METADATA_REMAP(h1,'REMAP_SCHEMA',source_schema,destination_schema);

    begin
    dbms_datapump.start_job(h1);
    dbms_output.put_line('Data Pump job started successfully');
    exception
      when others then
        if sqlcode = dbms_datapump.success_with_info_num
        then
          dbms_output.put_line('Data Pump job started with info available:');
          dbms_datapump.get_status(h1,
                                   dbms_datapump.ku$_status_job_error,0,
                                   job_state,sts);
          if (bitand(sts.mask,dbms_datapump.ku$_status_job_error) != 0)
          then
            le := sts.error;
            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 if;
        else
          raise;
        end if;
  end;

-- The export job should now be running. In the following loop, we will monitor
-- the job 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;

-- Display any work-in-progress (WIP) or error messages that were received for
-- the job.

      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);

-- Any exceptions that propagated to this point will be captured. The
-- details will be retrieved from get_status and displayed.

  exception
    when others then
      dbms_output.put_line('Exception in Data Pump job');
      dbms_datapump.get_status(h1,dbms_datapump.ku$_status_job_error,0,
                               job_state,sts);
      if (bitand(sts.mask,dbms_datapump.ku$_status_job_error) != 0)
      then
        le := sts.error;
        if le is not null
        then
          ind := le.FIRST;
          while ind is not null loop
            spos := 1;
            slen := length(le(ind).LogText);
            if slen > 255
            then
              slen := 255;
            end if;
            while slen > 0 loop
              dbms_output.put_line(substr(le(ind).LogText,spos,slen));
              spos := spos + 255;
              slen := length(le(ind).LogText) + 1 - spos;
            end loop;
            ind := le.NEXT(ind);
          end loop;
        end if;
      end if;
END;
/