今天客户在imp导入数据的时候遇到了下面的报错信息IMP-00051: Direct path exported dump file contains illegal column lengthIMP-00008: unrecognized statement in the export file
这个报错的原因与解决方法见如下官方文档 ALERT: Direct Path Export （EXP） Corrupts The Dump If An Empty Table Partition Exists （文档 ID 1604983.1） 修改时间:2013-12-19类型:ALERT
In this Document DescriptionOccurrenceSymptomsWorkaroundHistoryReferences
APPLIES TO:Oracle Database - Enterprise Edition - Version 11.2.0.1 and laterInformation in this document applies to any platform.
DESCRIPTIONYou performed a direct path export （table, schema or full） using the traditional export utility （EXP）. If the exported objects include an empty table partition, then the export dump is corrupt and cannot be imported.
OCCURRENCEOnly exp versions >= 11.2.0.1 are affected. The traditional export utility is de-supported beginning with the version 11g and is no more maintained.
SYMPTOMSDuring import you may see one of the following issues:
| IMP-00009: abnormal end of export fileOr:IMP-00051: Direct path exported dump file contains illegal column lengthIMP-00008: unrecognized statement in the export fileOr:Import silently skips a part of the dump, tables are missing and later constraints cannot be created. |
This is below demonstrated with a simple test:
| connect testcreate table part001（col001 number,col002 varchar2（100））partition by range （col001）（partition p001 values less than （10）,partition p002 values less than （100）,partition p003 values less than （1000））; insert into part001 values （5, "Text 5"）;insert into part001 values （500, "Text 500"）;commit; |
| #> exp test/password file=part001.dmp tables=part001 direct=yThis will show:About to export specified tables via Direct Path .... . exporting table PART001. . exporting partition P001 1 rows exported. . exporting partition P002 0 rows exported. . exporting partition P003 1 rows exportedExport terminated successfully without warnings.but the import breaks with error:. importing TEST"s objects into TEST. . importing partition "PART001":"P001" 1 rows imported. . importing partition "PART001":"P002"IMP-00009: abnormal end of export fileImport terminated successfully with warnings. |
WORKAROUND If you perform direct path exports using a version greater or equal 11.2.0.1 and you see the messages:About to export specified tables via Direct Path ...
| .... . exporting partition <partition_name> 0 rows exported... |
in the export output （or log file）, then you obtain a corrupt dump. You can verify the dump with the commands:
| #> imp user/passw full=yor:#> imp user/passw full=y show=y |
which will show you one of the behaviors listed above. To workaround this please use:
| - conventional path export （exp direct=n）Or:- materialize the empty partitions before running direct path exports:connect / as sysdbaexec dbms_space_admin.materialize_deferred_segments （schema_name => "TEST", table_name => "PART001", partition_name => "P002"）;Or:- DataPump export （expdp） |
HISTORY[03-DEC-2013] - Document created
REFERENCESBUG:13880226 - IMPORT FAIL WITH IMP-00051 AND IMP-00008
VMware+Linux+Oracle 10G RAC全程详细图解 http://www.linuxidc.com/Linux/2011-02/31976.htm在CentOS 6.4下安装Oracle 11gR2（x64） http://www.linuxidc.com/Linux/2014-02/97374.htmOracle 11gR2 在VMWare虚拟机中安装步骤 http://www.linuxidc.com/Linux/2013-09/89579p2.htmDebian 下 安装 Oracle 11g XE R2 http://www.linuxidc.com/Linux/2014-03/98881.htmOracle 11gR2 在VMWare虚拟机中安装步骤 http://www.linuxidc.com/Linux/2013-09/89579.htm更多Oracle相关信息见Oracle 专题页面 http://www.linuxidc.com/topicnews.aspx？tid=12
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