oracle expdp dmp 被加密恢复---惜分飞

有朋友oracle数据库dmp备份被加密,后缀为:.DMP.voyager,通过分析发现文件加密2M左右

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这里可以看出来dmp文件为expdp方式导出(expdp本质上xml方式存储,exp使用直接二进制方式存储),通过工具分析可恢复表情况.
通过工具对该dmp文件进行分析

CPFL> OPEN F:\BaiduNetdisk\KINGDEE85GH_2020-03-17.DMP.voyager TABLE_NAME                                         START_POS       DATA_BYTE     -------------------------------------------------- --------------- --------------- KINGDEE85GH.T_WFD_PROCESSDEF                       116300288       648396035       KINGDEE85GH.T_DYN_DYNAMICCONFIGURE                 864710656       181453794       KINGDEE85GH.T_RPTS_STORAGEFILEDATA                 1078767616      21548951        KINGDEE85GH.T_BOT_RULESEGMENT                      1100324864      10372516        KINGDEE85GH.T_LOG_APP                              1110712320      12603573        KINGDEE85GH.T_PM_PERMITEM                          1123336192      7282412         KINGDEE85GH.T_PM_USERORGPERM                       1130635264      6692320         KINGDEE85GH.T_DYN_APPSOLUTION                      1137336320      801697          KINGDEE85GH.T_PM_MAINMENUITEM                      1138155520      3573943         KINGDEE85GH.T_PM_PERMUIGROUP                       1141751808      2159245         KINGDEE85GH.T_SYS_ENTITYREF                        1143922688      4183869         KINGDEE85GH.T_PM_ROLEPERM                          1148116992      2758960         KINGDEE85GH.T_BAS_SYSMENUITEM                      1150885888      3304627         KINGDEE85GH.T_JP_PAGE                              1154211840      3019174  …………      KINGDEE85GH.T_XT_CHECKTIME                         1212776448      41              KINGDEE85GH.T_XT_SYNCHTIME                         1212784640      41              SYSTEM.SYS_EXPORT_SCHEMA_02                        1212792832      215423380    -------------------------------------------------- --------------- --------------- Scanned Find 895 segments.

通过这个基本上可以确定丢失了100多M数据，其他数据理论上可以恢复.
创建用户

SQL> create user KINGDEE85GHidentified by oracle;   User created.   SQL> grant dba to KINGDEE85GH;   Grant succeeded.

unexpdp数据(自动创建表和导入数据)

CPFL> unexpdp table KINGDEE85GH.T_WFD_PROCESSDEF   unexpdp table: KINGDEE85GH.T_WFD_PROCESSDEF storage(START_POSITION:116300288 DATA_BYTE:748396035) 824 rows unexpdp

查看恢复结果

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如果你有oracle expdp dmp被加密或者破坏,可以参考对其进行处理,参见:
exp dmp文件损坏恢复
oracle dmp被加密恢复