RE: Data Pump over NETWORK_LINK

Hi Richard,

Thanks but I think I'll be sticking to the simple approach :) I like the
KISS method (the glam rock band weren't too bad either).

The bit I left off the version I use was the logging output below which you
might want to add to yours ;)

Cheers,

Ian

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$_status_wip,-1,job_state,sts);
    js := sts.job_status;
    if js.percent_done != percent_done then
       dbms_output.put_line('*** Job percent done = ' ||
to_char(js.percent_done
));
       percent_done := js.percent_done;
    end if;
    if (bitand(sts.mask,dbms_datapump.ku$_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;


|---------+---------------------------->
|         |           Richard.Goulet@pa|
|         |           rexel.com        |
|         |                            |
|         |           21/04/2009 16:45 |
|         |                            |
|---------+---------------------------->
  
>--------------------------------------------------------------------------------------------------------------|
  |                                                                             
                                 |
  |       To:       Ian Cary/ONS@ONS, Roger.Xu@xxxxxxxx                         
                                 |
  |       cc:       oracle-l@xxxxxxxxxxxxx, oracle-l-bounce@xxxxxxxxxxxxx       
                                 |
  |       Subject:  RE: Data Pump over NETWORK_LINK                             
                                 |
  
>--------------------------------------------------------------------------------------------------------------|




Oh Ian,  it's not that long.  Here is a stored procedure that I like:

   procedure schema_refresh(schema in varchar2, link in varchar2) as
   h1   NUMBER := 0;
   h2 varchar2(1000);
   dmy number := 0;
   ex boolean := TRUE;
   fl number := 0;
   stmt varchar2(1000);
   schema_exp varchar2(100);
   blksz number := 0;
   bad_purge exception;
   bad_link exception;
   begin
      schema_exp := 'in('''||upper(schema)||''')';
      utl_file.fgetattr('DATA_PUMP_DIR', schema||'.log', ex, fl, blksz);
      if(ex = TRUE) then
utl_file.fremove('DATA_PUMP_DIR',schema||'.log');
      end if;
      h1 := purge_schema(schema);
      if(h1 != 0) then raise bad_purge;
      end if;
      select count(*) into dmy from user_db_links
      where db_link = upper(link);
      if(dmy = 0) then raise bad_link;
      end if;
      h1 := dbms_datapump.open (operation => 'IMPORT', job_mode =>
'SCHEMA', remote_link => link, job_name => upper(schema)||'_EXP',
version => 'COMPATIBLE');
     dbms_datapump.set_parallel(handle => h1, degree => 2);
     dbms_datapump.add_file(handle => h1, filename => schema||'.log',
directory => 'DATA_PUMP_DIR', filetype => 3);
     dbms_datapump.set_parameter(handle => h1, name => 'KEEP_MASTER',
value => 0);
     dbms_datapump.set_parameter(handle => h1, name => 'ESTIMATE', value
=> 'STATISTICS');
     dbms_datapump.set_parameter(handle => h1, name =>
'INCLUDE_METADATA', value => 1);
     dbms_datapump.metadata_filter(handle => h1, name=>
'SCHEMA_EXPR',value => schema_exp);
     dbms_datapump.start_job(handle => h1, skip_current => 0, abort_step
=> 0);
     dbms_datapump.wait_for_job(h1, h2);
     mail_log('DATA_PUMP_DIR', schema||'.log', initcap(schema)||'.log');
     /*
utl_mail.send(sender=>'richard.goulet@xxxxxxxxxxx',recipients=>'richard.
goulet@xxxxxxxxxxx', subject=>'CoreTST Dump',message=>h2);
      */
   exception
      when bad_purge then
         send_mail('richard.goulet@xxxxxxxxxxx','Failed Refresh','Schems
'||schema||' did not flush out properly. ORA-'||h1);
      when bad_link then
         send_mail('richard.goulet@xxxxxxxxxxx','Failed
Refresh','Database link '||link||' does not exist');
      when others then
         h2 := sqlerrm;
         if(h1 != 0) then dbms_datapump.stop_job(h1,1,0,0);
         end if;
         mail_log('DATA_PUMP_DIR', schema||'.log',
initcap(schema)||'.log');

utl_mail.send(sender=>'richard.goulet@xxxxxxxxxxx',recipients=>'richard.
goulet@xxxxxxxxxxx', subject=>schema||'Dump',message=>h2);
   end;


Dick Goulet
Senior Oracle DBA
PAREXEL International

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Ian Cary
Sent: Tuesday, April 21, 2009 10:40 AM
To: Roger.Xu@xxxxxxxx
Cc: oracle-l@xxxxxxxxxxxxx; oracle-l-bounce@xxxxxxxxxxxxx
Subject: Re: Data Pump over NETWORK_LINK

Hi Roger,

You can actually do this directly using the datapump API without the
need
for an intermediary dmp file.

All you need to do is create a dblink (called e.g. mydblink) on the test
database that points to the production one and run the following PL/SQL
(again from the test database)

declare
  h1 number;
begin
  h1 := dbms_datapump.open(operation=>'IMPORT',
                           job_mode=>'SCHEMA',
                           remote_link=>'MYDBLINK');
  dbms_datapump.metadata_filter(handle=>h1,
                                name=>'SCHEMA_LIST',
                                value=>'''HR''');
  dbms_datapump.metadata_remap(h1,'REMAP_SCHEMA','HR','TESTHR');
end;
/

I've deliberately kept the example short but this can be expanded on to
produce log information if needed.

Cheers,

Ian



|---------+----------------------------->
|         |           Roger.Xu@xxxxxxxx |
|         |           Sent by:          |
|         |           oracle-l-bounce@fr|
|         |           eelists.org       |
|         |                             |
|         |                             |
|         |           20/04/2009 21:05  |
|         |           Please respond to |
|         |           Roger.Xu          |
|         |                             |
|---------+----------------------------->

>-----------------------------------------------------------------------
---------------------------------------|
  |
|
  |       To:       oracle-l@xxxxxxxxxxxxx
|
  |       cc:       oracle-l@xxxxxxxxxxxxx
|
  |       Subject:  Data Pump over NETWORK_LINK
|

>-----------------------------------------------------------------------
---------------------------------------|




Here is how I currently copy a schema from production to dev in 10gR2 -





1) expdp system/password1 schemas=HR directory=pump_dir1 dumpfile=hr.dmp


2) FTP the dump file (hr.dmp) to the dev box


3) drop user TESTHR in the dev box


4) impdp system/password2 schemas=TESTHR directory=pump_dir2
dumpfile=hr.dmp remap_schema=HR:TESTHR


5) reset password for TESTHR (alter user TESTHR identified by ??????)





Now my question is: how do I do this over the NETWORK_LINK? What kind of
DB
link I need?





Would the command looks like this?





impdp system/password2 schemas=TESTHR directory=pump_dir2
network_link=mydblink remap_schema=HR:TESTHR








Thanks





Roger



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