将oracle数据库从32位平台迁移到64位

客户的32位oracle数据库系统磁盘出现损坏，庆幸的是oracle数据库完好无损。客户要求将数据库迁移到新购的设备上，新设备内存为64G，系统REDHAT 6.2 64位，直接拷贝数据文件肯定是不行的，因为oracle 的存储过程在32位和64位平台下的wordsize不同，虽然用户的存储过程可以在使用时自行完成重新编译，但oracle的系统存储过程确需要我们来手工转换。

总结，迁移过程如下：

1：备份oracle数据库

2：备份控制文件到trace（以备需要新建控制文件）

SQL> alter database backup controlfile to trace;Database altered.SQL> oradebug setmypid
Statement processed.
SQL> oradebug tracefile_name
/u01/app/admin/easy/udump/easy_ora_18830.trc
SQL> host cat /u01/app/admin/easy/udump/easy_ora_18830.trc
......
--
--     Set #1. NORESETLOGS case
--
-- The following commands will create a new control file and use it
-- to open the database.
-- Data used by Recovery Manager will be lost.
-- Additional logs may be required for media recovery of offline
-- Use this only if the current versions of all online logs are
-- available.
-- After mounting the created controlfile, the following SQL
-- statement will place the database in the appropriate
-- protection mode:
--  ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE PERFORMANCE
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "EASY" NORESETLOGS  NOARCHIVELOGMAXLOGFILES 16MAXLOGMEMBERS 3MAXDATAFILES 100MAXINSTANCES 8MAXLOGHISTORY 292
LOGFILEGROUP 1 '/oradata/easy/redo01.log'  SIZE 11200K,GROUP 2 '/oradata/easy/redo02.log'  SIZE 11200K
-- STANDBY LOGFILE
DATAFILE'/oradata/easy/system01.dbf','/oradata/easy/undotbs01.dbf','/oradata/easy/sysaux01.dbf','/oradata/easy/users01.dbf'
CHARACTER SET ZHS16GBK
;
-- Commands to re-create incarnation table
-- Below log names MUST be changed to existing filenames on
-- disk. Any one log file from each branch can be used to
-- re-create incarnation records.
-- ALTER DATABASE REGISTER LOGFILE '/u01/app/flash_recovery_area/EASY/archivelog/2014_11_05/o1_mf_1_1_%u_.arc';
-- ALTER DATABASE REGISTER LOGFILE '/u01/app/flash_recovery_area/EASY/archivelog/2014_11_05/o1_mf_1_1_%u_.arc';
-- Recovery is required if any of the datafiles are restored backups,
-- or if the last shutdown was not normal or immediate.
RECOVER DATABASE
-- Database can now be opened normally.
ALTER DATABASE OPEN;
-- Commands to add tempfiles to temporary tablespaces.
-- Online tempfiles have complete space information.
-- Other tempfiles may require adjustment.
ALTER TABLESPACE TEMP ADD TEMPFILE '/oradata/easy/temp01.dbf'SIZE 20971520  REUSE AUTOEXTEND ON NEXT 655360  MAXSIZE 32767M;
-- End of tempfile additions.
--
--     Set #2. RESETLOGS case
--
-- The following commands will create a new control file and use it
-- to open the database.
-- Data used by Recovery Manager will be lost.
-- The contents of online logs will be lost and all backups will
-- be invalidated. Use this only if online logs are damaged.
-- After mounting the created controlfile, the following SQL
-- statement will place the database in the appropriate
-- protection mode:
--  ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE PERFORMANCE
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "EASY" RESETLOGS  NOARCHIVELOGMAXLOGFILES 16MAXLOGMEMBERS 3MAXDATAFILES 100MAXINSTANCES 8MAXLOGHISTORY 292
LOGFILEGROUP 1 '/oradata/easy/redo01.log'  SIZE 11200K,GROUP 2 '/oradata/easy/redo02.log'  SIZE 11200K
-- STANDBY LOGFILE
DATAFILE'/oradata/easy/system01.dbf','/oradata/easy/undotbs01.dbf','/oradata/easy/sysaux01.dbf','/oradata/easy/users01.dbf'
CHARACTER SET ZHS16GBK
;
-- Commands to re-create incarnation table
-- Below log names MUST be changed to existing filenames on
-- disk. Any one log file from each branch can be used to
-- re-create incarnation records.
-- ALTER DATABASE REGISTER LOGFILE '/u01/app/flash_recovery_area/EASY/archivelog/2014_11_05/o1_mf_1_1_%u_.arc';
-- ALTER DATABASE REGISTER LOGFILE '/u01/app/flash_recovery_area/EASY/archivelog/2014_11_05/o1_mf_1_1_%u_.arc';
-- Recovery is required if any of the datafiles are restored backups,
-- or if the last shutdown was not normal or immediate.
RECOVER DATABASE USING BACKUP CONTROLFILE
-- Database can now be opened zeroing the online logs.
ALTER DATABASE OPEN RESETLOGS;
-- Commands to add tempfiles to temporary tablespaces.
-- Online tempfiles have complete space information.
-- Other tempfiles may require adjustment.
ALTER TABLESPACE TEMP ADD TEMPFILE '/oradata/easy/temp01.dbf'SIZE 20971520  REUSE AUTOEXTEND ON NEXT 655360  MAXSIZE 32767M;
-- End of tempfile additions.
--

3: 查看当前的数据库状态

SQL> select count(*) from dba_objects where status ='INVALID';COUNT(*)
----------0SQL> select comp_name,status from dba_registry;COMP_NAME               STATUS
---------------------------------------- ----------------------
Oracle Database Catalog Views        VALID
Oracle Database Packages and Types   VALID
Oracle Workspace Manager         VALID
JServer JAVA Virtual Machine         VALID
Oracle XDK               VALID
Oracle Database Java Packages        VALID
Oracle Expression Filter         VALID
Oracle Data Mining           VALID
Oracle Text              VALID
Oracle XML Database          VALID
Oracle Rules Manager             VALIDCOMP_NAME              STATUS
---------------------------------------- ----------------------
Oracle interMedia            VALID
OLAP Analytic Workspace          VALID
Oracle OLAP API              VALID
OLAP Catalog                 VALID
Spatial                  VALID
Oracle Enterprise Manager        VALID17 rows selected.

4：拷贝参数文件，控制文件，数据文件，日志文件到64位数据库

5：在64位系统上创建相应目录，如udmp adump等，要和32位系统一致

6：如果数据库的数据文件目录发生变化，则需要新建控制文件，（最好保持源库和目标库的一致，减少工作量和错误发生率）

7：将数据库中的存储过程等置为失效,UTLIRP脚本会将存储过程等置为失效

<span style="white-space:pre">  </span>--如果迁移的是oracle9i的数据库，执行如下命令：SQL> STARTUP MIGRATE --如果是Oracle10g或11g，执行如下命令：SQL> STARTUP UPGRADE SQL> SPOOL EASY.log;SQL> @$ORACLE_HOME/rdbms/admin/utlirp.sql SQL> SPOOL OFF;

8: 重新启动数据库，

9: 如果数据库有OLAP组件，则删除OLAP，以sys用户执行如下脚本

SQL> conn / as sysdba----> Remove OLAP Catalog
SQL> @?/olap/admin/catnoamd.sql----> Remove OLAP API
SQL> @?/olap/admin/olapidrp.plb
SQL> @?/olap/admin/catnoxoq.sql----> Deinstall APS - OLAP AW component
SQL> @?/olap/admin/catnoaps.sql
SQL> @?/olap/admin/cwm2drop.sql   ---只需要在11g中执行。在10g中，catnoamd.sql 脚本中已经包含了该脚本，所以不用执行You could getsome invalid objects under SYS and PUBLIC owner, and they are the old duplicate OLAPSYS objects copied under these schemas when Olap has been installedpreviously.
Generally, theOlap objects are named with context like %OLAP%, %AWM%, or other Olap word keys intheir "object_name" field, however, if it needs a help to recognizethem, then please contact Oracle  Support and create a Service Request toget assistance for this question.Note that catnoadm.sql could fail from 10.1.0.5 to 11.1.0.7release. Due to the factthat it refers to three scripts which don't get shipped until 11.2 this scriptwill fail.
Besides that itwill error on 7 non-existing synonyms to drop.Prior 11.2, execute these three dropsynonym statements:SQL> drop public synonym OlapFactView;
SQL> drop public synonym OlapDimView;
SQL> drop public synonym DBMS_ODM;

10：编译失效对象

SQL> @?/rdbms/admin/utlrp.sql

此时会有错误，这是因为olap没有安装，下面安装olap，然后重新编译

11：添加OLAP

SQL> @?/olap/admin/olap.sql SYSAUX TEMP;

<pre name="code" class="sql">SQL> @?/rdbms/admin/utlrp.sql    --这次会非常快

12. 验证无效对象和组件状态

SQL> l1* select count(*) from dba_objects where status<>'VALID'
SQL> col comp_name for a40
SQL> select comp_name,status from dba_registry;COMP_NAME              STATUS
---------------------------------------- ----------------------
Oracle Database Catalog Views        VALID
Oracle Database Packages and Types   VALID
Oracle Workspace Manager         VALID
JServer JAVA Virtual Machine         VALID
Oracle XDK               VALID
Oracle Database Java Packages        VALID
Oracle Expression Filter         VALID
Oracle Data Mining           VALID
Oracle Text              VALID
Oracle XML Database          VALID
Oracle Rules Manager             VALIDCOMP_NAME              STATUS
---------------------------------------- ----------------------
Oracle interMedia            VALID
OLAP Analytic Workspace          VALID
Oracle OLAP API              VALID
OLAP Catalog                 VALID
Spatial                  VALID
Oracle Enterprise Manager        VALID

11：重新编译java对象

<pre name="code" class="sql">beginupdate obj$ set status=5 where obj#=(select obj# from obj$,javasnm$ where owner#=0 and type#=29 and short(+)=name and nvl(longdbcs,name)='oracle/aurora/rdbms/Compiler');commit;declarecursor C1 is select 'DROP JAVA DATA "'||u.name||'"."'||o.name||'"' from obj$ o,user$ u where o.type#=56 and u.user#=o.owner#;ddl_statement varchar2(200);iterations number;previous_iterations number;loop_count number;my_err     number;beginprevious_iterations := 10000000;loopselect count(*) into iterations from obj$ where type#=56;exit when iterations=0 or iterations >= previous_iterations;previous_iterations := iterations;loop_count := 0;open C1;loopbeginfetch C1 into ddl_statement;exit when C1%NOTFOUND or loop_count > iterations;exception when others thenmy_err := sqlcode;if my_err = -1555 thenexit;elseraise;end if;end;initjvmaux.exec(ddl_statement);loop_count := loop_count + 1;end loop;close C1;end loop;end;commit;initjvmaux.drp('delete from java$policy$shared$table');update obj$ set status=1 where obj#=(select obj# from obj$,javasnm$ where owner#=0 and type#=29 and short(+)=name and nvl(longdbcs,name)='oracle/aurora/rdbms/Compiler');commit;
end;
/

create or replace java system
/

It may be necessary to recompilethe Java objects with ncomp:i.e. % ncomp-user scott/tiger Hello.class

迁移过程中，最好不要有ddl操作，以免造成死锁

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