用expdp导出一个表，用了4个并发，语句如下：
test/******** tables =T_CC_BILLDETAILDATA directory=dir_dpbak dumpfile =gomecc800_T_CC_BILLDETAILDATA_20161123_%U.dmp logfile=gomecc800_T_CC_BILLDETAILDATA_20161123_back.log PARALLEL = 4
但是只生成了 ...
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