RE: Data Pump over NETWORK_LINK
- From: Ian Cary <ian.cary@xxxxxxxxxxxxxx>
- To: Richard.Goulet@xxxxxxxxxxx
- Date: Tue, 21 Apr 2009 16:56:14 +0100
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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