help required Oracle export command

Hello gurus

I need to export data from table MBE under certain conditions as below

SELECT MBE.*
OF MBE,.
MSI
WHERE MBE.ID = MSI.ID
AND MSI.NAME = 'MOS '.

How can I achieve this?

exp username/password@schemaname.
tables = MBE query =------"WHERE EXISTS\ (SELECT NULL FROM MSI WHERE MSI.ID = \ MBE.ID AND MSI.NAME = 'MOS' \) \) \' file = MV.dmp log = exp.log

will it work?

Please answer

s

I have a table simple import/export api writern using DBMS_DATAPUMP. I hope this helps.

create or replace procedure export_table
(
     pOwner          in     varchar2,
     pTableName     in     varchar2,
     pDirectory     in     varchar2,
     pFilterStr     in     varchar2
)
is
     lDPJobName     varchar2(100);
     lFileName     varchar2(100);
     lJobState     varchar2(50)     := 'EXECUTING';
     lHandle          number;
     lStatus          ku$_Status1010;
begin
     lDPJobName := 'TABLE_EXPORT_' || to_char(sysdate, 'YYYYMMDDHH24MISS');
     lFileName  := upper(pTableName) || '_' || to_char(sysdate, 'YYYYMMDDHH24MISS');

     lHandle := dbms_datapump.open('EXPORT', 'TABLE', job_name => lDPJobName);

     dbms_datapump.add_file          (handle => lHandle, filename => lFileName, directory => pDirectory, filetype => dbms_datapump.ku$_file_type_dump_file);
     dbms_datapump.add_file          (handle => lHandle, filename => lFileName, directory => pDirectory, filetype => dbms_datapump.ku$_file_type_log_file);

     dbms_datapump.set_parameter     (handle => lHandle, name => 'KEEP_MASTER',     value => 0);
     dbms_datapump.set_parameter     (handle => lHandle, name => 'INCLUDE_METADATA', value => 1);
     dbms_datapump.metadata_filter     (handle => lHandle, name => 'SCHEMA_EXPR',     value => '= ''' || upper(trim(pOwner)) || '''');
     dbms_datapump.metadata_filter     (handle => lHandle, name => 'NAME_EXPR',     value => '= ''' || upper(trim(pTableName)) || '''');
     dbms_datapump.data_filter     (handle => lHandle, name => 'SUBQUERY',          value => pFilterStr, table_name => pTableName, schema_name => pOwner);

     dbms_datapump.start_job          (handle => lHandle);
     dbms_datapump.wait_for_job     (handle => lHandle, job_state => lJobState);

     if trim(upper(lJobState)) = 'STOPPED' then
          raise_application_error(-20001, 'Job returned status as STOPPED');
     else
          dbms_datapump.detach(handle => lHandle);
     end if;

     lHandle := null;
end;
/
show err
create or replace procedure import_table
(
       pDirName      in  varchar2
     , pDmpFileName  in     varchar2
)
is
     lHandle          integer;
     lDPJobName     VARCHAR2(100);
     lJobState     varchar2(50)     := 'EXECUTING';
begin
     lDPJobName := 'TABLE_EXPORT_' || to_char(sysdate, 'YYYYMMDDHH24MISS');

     lHandle := dbms_datapump.open(operation => 'IMPORT', job_mode => 'TABLE', remote_link => '', job_name => lDPJobName);

     dbms_datapump.add_file          (handle => lHandle, filename => pDmpFileName, directory => pDirName, filetype => dbms_datapump.ku$_file_type_dump_file);
     dbms_datapump.add_file          (handle => lHandle, filename => pDmpFileName || '_IMP', directory => pDirName, filetype => dbms_datapump.ku$_file_type_log_file);
     dbms_datapump.set_parameter     (handle => lHandle, name => 'TABLE_EXISTS_ACTION', value => 'APPEND');
     dbms_datapump.start_job          (handle => lHandle);

     if trim(upper(lJobState)) = 'STOPPED' then
          raise_application_error(-20001, 'Job returned status as STOPPED');
     else
          dbms_datapump.detach(handle => lHandle);
     end if;

     lHandle := null;
end;
/
show err

His executed like this. For example, I use a TEMP table.

SQL> create table temp as select * from all_objects
  2  /

Table created.

SQL> begin
  2    export_table
  3    (
  4      'KARTHICK',
  5      'TEMP',
  6      'DP_KAR_DIR',
  7      'WHERE OBJECT_NAME IN (SELECT OBJECT_NAME FROM ALL_OBJECTS WHERE OWNER = ''KARTHICK'')'
  8    );
  9  end;
 10  /

PL/SQL procedure successfully completed.

SQL> drop table temp purge;

Table dropped.

SQL> begin
  2    import_table
  3    (
  4        'DP_KAR_DIR'
  5      , 'TEMP_20140502034806.dmp'
  6    );
  7  end;
  8  /

PL/SQL procedure successfully completed.

SQL> select count(*) from temp;

  COUNT(*)
----------
    200302

Here are the details of the journal

Export log...

arttvt04% cat TEMP_20140502034806.log
Starting "KARTHICK"."TABLE_EXPORT_20140502034806":
Estimate in progress using BLOCKS method...
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 23 MB
Processing object type TABLE_EXPORT/TABLE/TABLE
. . exported "KARTHICK"."TEMP"                             18.41 MB  200302 rows
Master table "KARTHICK"."TABLE_EXPORT_20140502034806" successfully loaded/unloaded
******************************************************************************
Dump file set for KARTHICK.TABLE_EXPORT_20140502034806 is:
  /home/arbor/karthick/TEMP_20140502034806.dmp
Job "KARTHICK"."TABLE_EXPORT_20140502034806" successfully completed at 03:48:16

Import log...

arttvt04% cat TEMP_20140502034806.dmp_IMP
Master table "KARTHICK"."TABLE_EXPORT_20140502034956" successfully loaded/unloaded
Starting "KARTHICK"."TABLE_EXPORT_20140502034956":
Processing object type TABLE_EXPORT/TABLE/TABLE
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
. . imported "KARTHICK"."TEMP"                             18.41 MB  200302 rows
Job "KARTHICK"."TABLE_EXPORT_20140502034956" successfully completed at 03:50:00
arttvt04%

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    Possible. But this will require a large part of the memory. As PL/SQL is a language server side, this means the server's memory. That means server potential resource problems.

    And that the server environment is a multiprocessu multi-user environment, it also means potentially several copies of this code of matrix running multiple processes, each putting a request very heavy on the resources of the server. Is no longer a matter of potential server resources, but a guarantee... (exactly the same problem if you use app server architecture and Java or .net)

    You have to ask what is the cracking of data, server-side language? The answer is SQL. No PL/SQL. SQL runs rings around PL/SQL, Java, C/C++ and other languages when it comes to complex, fast and scalable, processing of large volumes of data.

    So you ask yourself why use PL/SQL? With his expensive server memory footprint? SQL and not SQL tables that are designed to deal with massive data effectively and efficiently?

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