Oracle 11g r2 migrates from CentOS to Windows 10 using Data dump

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create user username identified by password; grant connect,resoure to username;

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Give expdp and impdp command permissions:

grant exp_full_database,imp_full_database to username;

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SQL> create user migrate identified by migrate; User created

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SQL> grant connect,resource,dba to migrate; Grant succeeded

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SQL> grant exp_full_database,imp_full_database to migrate; Grant succeeded

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SQL> select * from dba_directories; OWNER DIRECTORY_NAME DIRECTORY_PATH ------------------------------ ------------------------------ -------------------------------------------------------------------------------- SYS ORACLE_OCM_CONFIG_DIR /oracle/app/product/11.2.0/dbhome_1/ccr/state SYS DATA_PUMP_DIR /oracle/app/admin/orcl/dpdump/ SYS XMLDIR /ade/b/2125410156/oracle/rdbms/xml

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Step 1: Create directories on the source system

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SQL> select * from dba_directories; OWNER DIRECTORY_NAME DIRECTORY_PATH ------------------------------ ------------------------------ -------------------------------------------------------------------------------- SYS ORACLE_OCM_CONFIG_DIR /oracle/app/product/11.2.0/dbhome_1/ccr/state SYS DATA_PUMP_DIR /oracle/app/admin/orcl/dpdump/ SYS DPDMP /oracle/app/admin/orcl/dpdmp/ SYS XMLDIR /ade/b/2125410156/oracle/rdbms/xml

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Step 2: Give the account permission to the directory

grant read,write on directory DPDMP to username;

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Step 3: Expdp at the source system end (based on a user)

expdp username/password@orcl directory= DPDMP dumpfile=XX_schema%U.dmp logfile=XX_schema.log schemas=XX_schema
Or export the entire library:
expdp username/password@orcl directory= DPDMP dumpfile=all%U.dmp logfile=XX_schema.log parallel=10 full=y

Step 4: Copy the directory/XX_schema%U.dmp file of the source system to the target system

This step is omitted

Step 5: Create directories on the target system

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Step 6: Give permission

grant read,write on directory impdp to username;

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Step 7: impdp at the target system end

impdp username/password@orcl directory= DPDMP dumpfile=XX_schema%U.dmp logfile=XX_schema.log schemas=XX_schema //Or import the entire library: impdp username/password@orcl directory= DPDMP dumpfile=all%U.dmp logfile=XX_schema.log parallel=10 full=y impdp migrate/migrate@orcl directory=dpdmp dumpfile=migrate_full.dmp logfile=migrate_imp_full.log full=y parfile=e:\payroll.par parallel=10 payroll.par put to directory impdp Catalog or place E Packing directory: payroll.par Document content remap_datafile="'/oracle/app/oradata/orcl/XXX.dbf':'E:\ORACLE\APP\ADMINISTRATOR\ORADATA\ORCL\XXX.DBF'" remap_datafile="'/oracle/app/oradata/orcl/XXX.dbf':'E:\ORACLE\APP\ADMINISTRATOR\ORADATA\ORCL\XXX.DBF'" remap_datafile="'/oracle/app/oradata/orcl/XXX.dbf':'E:\ORACLE\APP\ADMINISTRATOR\ORADATA\ORCL\XXX.DBF'"

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> The following are possible uses in migration

• If you need to import and export from linux to window s, it's better to create tablespaces and data files first.
  Table space DDL:

select ts.tablespace_name,to_char(dbms_metadata.get_DDl('TABLESPACE',ts.tablespace_name))from dba_tablespaces ts;

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• User DDL:

select username,default_tablespace,temporary_tablespace,profile,dbms_metadata.get_DDl('USER',username) from dba_users where account_status='OPEN' ;

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• Number of records:

select table_name, count_rows(table_name) nrows from user_tables ;

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• View the currently imported job:

select * from dba_datapump_jobs;

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• If an exception exits in the impdp process, import from the interrupt and execute as follows:

  impdp migrate/migrate@orcl attach=JOB_NAME (JOB_NAME can be queried by dba_datapump_jobs)
  For example: > impdp mig_test/mig_test attach = SYS_IMPORT_TABLE_02

  Import status/continue_client returns record mode/stop_job YES/.
  Common commands in interactive mode:
  CONTINUE_CLIENT returns to record mode. If it is idle, the job will be restarted.  
  START_JOB starts restoring the current job.  
  The frequency (in seconds) job status to be monitored by STATUS when the default value (0) will display the new state when available.  
  STATUS=[interval]
  STOP_JOB sequentially closes the executing job and exits the client.  
  STOP_JOB=IMMEDIATE will immediately close the data pump operation.

• If the whole library is imported, the card will be suspended there.

  You can check diag rdbms orcl orcl orcl trace alert_orcl. log to see the log. When the current problem is resolved, impdp will continue.
  If ORA-19815: WARNING: db_recovery_file_dest_size of 4039114752 bytes is 100.00% used, and has 0 remaining bytes available.
  You need to increase db_recovery_file_dest_size:

SQL> alter system set db_recovery_file_dest_size=50G scope=spfile(Need to restart the database to take effect) SQL> shutdown immediate; SQL> startup; SQL> show parameter db_recovery_file_dest NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_recovery_file_dest string E:\oracle\app\Administrator\flash_recovery_area db_recovery_file_dest_size big integer 50G

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