使用数据泵（expdp）导数时遇到了ORA-31626 & ORA-00942 错误，数据库版本为Oracle Database 10g Release 10.2.0.5.0,具体错误如下所示：
$ expdp system/xxx tables=xxx.xxx directory=DUMPDIR dumpfile=xxxx.dmp logfile=xxx.log;
Export: Release 10.2.0.5.0 - 64bit Production on Saturday, 27 July, 2019 10:39:07
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Connected to: Oracle Database 10g Release 10.2.0.5.0 - 64bit Production
ORA-31626: job does not exist
ORA-00942: table or view does not exist
ORA-00942: table or view does not exist
ORA-00942: table or view does not exist
ORA-00942: table or view does not exist
ORA-00942: table or view does not exist
ORA-00942: table or view does not exist
ORA-00942: table or view does not exist
ORA-00942: table or view does not exist
ORA-00942: table or view does not exist
ORA-00942: table or view does not exist
ORA-00942: table or view does not exist
ORA-00942: table or view does not exist