数据泵工具expdp/impdp是10g中引发的服务器端导入导出外部工具，虽然是外部的binary，但是实际expdp/impdp都依赖于内部的PL/SQL package主要是(dbms_datapump)，在很多情况下我们需要修复或重新加载Datapump工具，方法如下：   对于版本10.1:   
1. Catdp.sql orders the installation of all its components including
   the Metadata API which was previously installed separately.
   By default catproc.sql invoke this script.

SQL >@ $ORACLE_HOME/rdbms/admin/catdp.sql

2. dbmspump.sql will create DBMS procedures for dataPUMP

SQL >@ $ORACLE_HOME/rdbms/admin/dbmspump.sql
    对于版本10.2:   
1. Catdph.sql will Re-Install DataPump types and views

SQL >@ $ORACLE_HOME/rdbms/admin/catdph.sql

Note: If XDB is installed, then it is required to run "catmetx.sql" script also.

Use this code to verify if XDB is installed:

SQL> select substr(comp_name,1,30) comp_name, substr(comp_id,1,10)
     comp_id,substr(version,1,12) version,status from dba_registry;

Sample output if XDB installed,

Oracle XML Database            XDB        -version-   VALID

2. prvtdtde.plb will Re-Install tde_library packages

SQL >@ $ORACLE_HOME/rdbms/admin/prvtdtde.plb

3. Catdpb.sql will Re-Install DataPump packages

SQL >@ $ORACLE_HOME/rdbms/admin/catdpb.sql

4.Dbmspump.sql will Re-Install DBMS DataPump objects

SQL >@ $ORACLE_HOME/rdbms/admin/dbmspump.sql

5. To recompile  invalid objects, if any

SQL >@ $ORACLE_HOME/rdbms/admin/utlrp.sql
  对于版本11g :   
1. Catproc.sql

SQL >@ $ORACLE_HOME/rdbms/admin/catproc.sql

2. To recompile invalid objects, if any

SQL >@ $ORACLE_HOME/rdbms/admin/utlrp.sql
    示例使用方法FOR 10.2.0.5:     
SQL> select * from v$version;

BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi
PL/SQL Release 10.2.0.5.0 - Production
CORE    10.2.0.5.0      Production
TNS for Linux: Version 10.2.0.5.0 - Production
NLSRTL Version 10.2.0.5.0 - Production

select substr(comp_name,1,30) comp_name, substr(comp_id,1,10)
     comp_id,substr(version,1,12) version,status from dba_registry;

确认XDB未安装

@$ORACLE_HOME/rdbms/admin/catdph.sql

....

Package created.

Grant succeeded.

SQL> @ $ORACLE_HOME/rdbms/admin/prvtdtde.plb

Library created.

No errors.

Package created.

Synonym created.

Package created.

@ $ORACLE_HOME/rdbms/admin/catdpb.sql

@ $ORACLE_HOME/rdbms/admin/dbmspump.sql

@ $ORACLE_HOME/rdbms/admin/utlrp.sql

同时可以把expdp、impdp的binary重新编译一遍

cd $ORACLE_HOME/rdbms/lib
make -f ins_rdbms.mk iexpdp iimpdp

- Linking Datapump Export utility (expdp)
rm -f /s01/oracle/product/10.2.0.5/db_1/rdbms/lib/expdp
gcc -o /s01/oracle/product/10.2.0.5/db_1/rdbms/lib/expdp -L/s01/oracle/product/10.2.0.5/db_1/rdbms/lib/ -L/s01/oracle/product/10.2.0.5/db_1/lib/ -L/s01/oracle/product/10.2.0.5/db_1/lib/stubs/   /s01/oracle/product/10.2.0.5/db_1/rdbms/lib/s0udexp.o  /s01/oracle/product/10.2.0.5/db_1/rdbms/lib/defopt.o -ldbtools10 -lclntsh  `cat /s01/oracle/product/10.2.0.5/db_1/lib/ldflags`    -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lnro10 `cat /s01/oracle/product/10.2.0.5/db_1/lib/ldflags`    -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lclient10 -lnnetd10  -lvsn10 -lcommon10 -lgeneric10 -lmm -lsnls10 -lnls10  -lcore10 -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lxml10 -lcore10 -lunls10 -lsnls10 -lnls10 -lcore10 -lnls10 `cat /s01/oracle/product/10.2.0.5/db_1/lib/ldflags`    -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lnro10 `cat /s01/oracle/product/10.2.0.5/db_1/lib/ldflags`    -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lclient10 -lnnetd10  -lvsn10 -lcommon10 -lgeneric10   -lsnls10 -lnls10  -lcore10 -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lxml10 -lcore10 -lunls10 -lsnls10 -lnls10 -lcore10 -lnls10 -lclient10 -lnnetd10  -lvsn10 -lcommon10 -lgeneric10 -lsnls10 -lnls10  -lcore10 -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lxml10 -lcore10 -lunls10 -lsnls10 -lnls10 -lcore10 -lnls10   `cat /s01/oracle/product/10.2.0.5/db_1/lib/sysliblist` -Wl,-rpath,/s01/oracle/product/10.2.0.5/db_1/lib -lm    `cat /s01/oracle/product/10.2.0.5/db_1/lib/sysliblist` -ldl -lm   -L/s01/oracle/product/10.2.0.5/db_1/lib
mv -f /s01/oracle/product/10.2.0.5/db_1/bin/expdp /s01/oracle/product/10.2.0.5/db_1/bin/expdpO
mv /s01/oracle/product/10.2.0.5/db_1/rdbms/lib/expdp /s01/oracle/product/10.2.0.5/db_1/bin/expdp
chmod 751 /s01/oracle/product/10.2.0.5/db_1/bin/expdp

 - Linking Datapump Import utility (impdp)
rm -f /s01/oracle/product/10.2.0.5/db_1/rdbms/lib/impdp
gcc -o /s01/oracle/product/10.2.0.5/db_1/rdbms/lib/impdp -L/s01/oracle/product/10.2.0.5/db_1/rdbms/lib/ -L/s01/oracle/product/10.2.0.5/db_1/lib/ -L/s01/oracle/product/10.2.0.5/db_1/lib/stubs/   /s01/oracle/product/10.2.0.5/db_1/rdbms/lib/s0udimp.o  /s01/oracle/product/10.2.0.5/db_1/rdbms/lib/defopt.o -ldbtools10 -lclntsh  `cat /s01/oracle/product/10.2.0.5/db_1/lib/ldflags`    -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lnro10 `cat /s01/oracle/product/10.2.0.5/db_1/lib/ldflags`    -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lclient10 -lnnetd10  -lvsn10 -lcommon10 -lgeneric10 -lmm -lsnls10 -lnls10  -lcore10 -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lxml10 -lcore10 -lunls10 -lsnls10 -lnls10 -lcore10 -lnls10 `cat /s01/oracle/product/10.2.0.5/db_1/lib/ldflags`    -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lnro10 `cat /s01/oracle/product/10.2.0.5/db_1/lib/ldflags`    -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lclient10 -lnnetd10  -lvsn10 -lcommon10 -lgeneric10   -lsnls10 -lnls10  -lcore10 -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lxml10 -lcore10 -lunls10 -lsnls10 -lnls10 -lcore10 -lnls10 -lclient10 -lnnetd10  -lvsn10 -lcommon10 -lgeneric10 -lsnls10 -lnls10  -lcore10 -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lxml10 -lcore10 -lunls10 -lsnls10 -lnls10 -lcore10 -lnls10   `cat /s01/oracle/product/10.2.0.5/db_1/lib/sysliblist` -Wl,-rpath,/s01/oracle/product/10.2.0.5/db_1/lib -lm    `cat /s01/oracle/product/10.2.0.5/db_1/lib/sysliblist` -ldl -lm   -L/s01/oracle/product/10.2.0.5/db_1/lib
mv -f /s01/oracle/product/10.2.0.5/db_1/bin/impdp  /s01/oracle/product/10.2.0.5/db_1/bin/impdpO
mv /s01/oracle/product/10.2.0.5/db_1/rdbms/lib/impdp /s01/oracle/product/10.2.0.5/db_1/bin/impdp
chmod 751 /s01/oracle/product/10.2.0.5/db_1/bin/impdp

[oracle@vrh8 lib]$ ls -l $ORACLE_HOME/bin/*pdp
-rwxr-x--x 1 oracle oinstall 228377 Aug 26 09:15 /s01/oracle/product/10.2.0.5/db_1/bin/expdp
-rwxr-x--x 1 oracle oinstall 233704 Aug 26 09:15 /s01/oracle/product/10.2.0.5/db_1/bin/impdp