下午收到了一個(gè)導(dǎo)數(shù)據(jù)的需求，一張表，20多萬(wàn)數(shù)據(jù)，小case，卻遇到了問(wèn)題。
關(guān)鍵報(bào)錯(cuò)：
ORA-39097 ORA-39065 ORA-01427 ORA-39126 ORA-06502 LPX-00225 導(dǎo)入語(yǔ)句：
impdp "'/as sysdba'" directory=DATA_PUMP_DIR dumpfile=NCHATTAG1.dmp logfile=20180821.log  
log如下：

Import: Release 11.2.0.4.0 - Production on Tue Aug 21 15:59:30 2018

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Oracle Label Security, OLAP, Data Mining,
Oracle Database Vault and Real Application Testing options
Master table "SYS"."SYS_IMPORT_FULL_02" successfully loaded/unloaded
Starting "SYS"."SYS_IMPORT_FULL_02":  "/******** AS SYSDBA" directory=DATA_PUMP_DIR dumpfile=NCHATTAG1.dmp logfile=20180821.log
Processing object type TABLE_EXPORT/TABLE/TABLE
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
. . imported "NCHATTAG1"."MESSAGE"                       68.48 MB  205729 rows
Processing object type TABLE_EXPORT/TABLE/GRANT/OWNER_GRANT/OBJECT_GRANT
ORA-39083: Object type OBJECT_GRANT failed to create with error:
ORA-01917: user or role 'P_WANGYP_R' does not exist
Failing sql is:
GRANT SELECT ON "NCHATTAG1"."MESSAGE" TO "P_WANGYP_R"
ORA-39083: Object type OBJECT_GRANT failed to create with error:
ORA-01917: user or role 'R_NCHATTAG1_READER' does not exist
Failing sql is:
GRANT SELECT ON "NCHATTAG1"."MESSAGE" TO "R_NCHATTAG1_READER"
Processing object type TABLE_EXPORT/TABLE/INDEX/INDEX
Processing object type TABLE_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
Processing object type TABLE_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
Processing object type TABLE_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
ORA-39126: Worker unexpected fatal error in KUPW$WORKER.PUT_DDLS [TABLE_STATISTICS]
ORA-06502: PL/SQL: numeric or value error
LPX-00225: end-element tag "HIST_GRAM_LIST_ITEM" does not match start-element tag "EPVALUE"

ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95
ORA-06512: at "SYS.KUPW$WORKER", line 9715

----- PL/SQL Call Stack -----
  object      line  object
  handle    number  name
0x62926f00     21979  package body SYS.KUPW$WORKER
0x62926f00      9742  package body SYS.KUPW$WORKER
0x62926f00     17950  package body SYS.KUPW$WORKER
0x62926f00      4058  package body SYS.KUPW$WORKER
0x62926f00     10450  package body SYS.KUPW$WORKER
0x62926f00      1824  package body SYS.KUPW$WORKER
0x67897468         2  anonymous block

ORA-39097: Data Pump job encountered unexpected error -1427
ORA-39065: unexpected master process exception in DISPATCH
ORA-01427: single-row subquery returns more than one row

Job "SYS"."SYS_IMPORT_FULL_02" stopped due to fatal error at Tue Aug 21 16:00:01 2018 elapsed 0 00:00:30

可以看到dw進(jìn)程在處理表的統(tǒng)計(jì)信息時(shí)，在處理直方圖信息的時(shí)候出現(xiàn)了錯(cuò)誤，在源端查詢表上確實(shí)有直方圖。這種內(nèi)部處理過(guò)程出現(xiàn)無(wú)法正確處理的情況，可以認(rèn)為是oracle的bug。解決辦法也簡(jiǎn)單，繞過(guò)統(tǒng)計(jì)信息即可：
impdp "'/as sysdba'" directory=DATA_PUMP_DIR dumpfile=NCHATTAG1.dmp logfile=20180821.log table_exists_action=replace EXCLUDE=STATISTICS
無(wú)報(bào)錯(cuò)成功導(dǎo)入。

手動(dòng)收集統(tǒng)計(jì)信息：
oracle@bd-dev-oracle-104:/opt/app/oracle/diag/rdbms/bdcfg/BDCFG/trace$ora ant NCHATTAG1 message
\n=============Tue Aug 21 16:54:43 CST 2018===================
exec DBMS_STATS.GATHER_TABLE_STATS(ownname=>'NCHATTAG1',tabname=>'message',estimate_percent=>10,no_invalidate=>false,cascade=>true,degree => 10);
Can you confirm?[y/n]
y 事后去mos上搜索了一下，可以參考文檔 ID 878626.1

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