CountDownLatch是什么？
CountDownLatch是Java中一个同步工具类，用于控制多个线程的执行顺序。它可以让某个线程一直等待，直到其他线程完成各自的操作后再继续执行。CountDownLatch通过一个计数器来实现，计数器的初始值为线程数量，每当一个线程完成任务后，计数器的值就会减1，当计数器的值变为0时，等待的线程就会被唤醒继续执行...
ORA-48149: error encountered when attempting to copy a file
文档解释ORA-48149:errorencounteredwhenattemptingtocopyafileCause:TherewasanerrorencounteredwhenattemptingtocopyafilewiththeADRfileinterface.Action:Checkthedirectory...
ORA-64110: XMLIndex: problems encountered during the gathering of statistics
文档解释ORA-64110:XMLIndex:problemsencounteredduringthegatheringofstatisticsCause:Seeassociatederrormessage.Action:Correcttheerrorandretrycommand.ORA-64110是Oracle数据...
ORA-48117: error encountered when attempting to remove a directory [string]
文档解释ORA-48117:errorencounteredwhenattemptingtoremoveadirectory[string]Cause:Therewasanerrorencounteredwhenattemptingtoremoveadirectory.Action:Checkthedirectoryn...
ORA-48324: Incompatible staging file encountered
文档解释ORA-48324:IncompatiblestagingfileencounteredCause:sweepincidentfailedbecausestagingfileisincompatibleAction:checktheincidentIDandversionofADRandretry。ORA-48...
ORA-19630: end of volume encountered while copying backup piece
文档解释ORA-19630:endofvolumeencounteredwhilecopyingbackuppieceCause:WhilecopyingabackuppiecefromtheOSnativefilesystemtoanoutputdevice,theoutputdeviceencounteredend...
ORA-13546: Error encountered during maintenance of Adaptive Thresholds
文档解释ORA-13546:ErrorencounteredduringmaintenanceofAdaptiveThresholdsCause:ErroroccurredduringOCIoperationduetounderlyingerror.Action:CheckassociatedOCIerror.Corr...
ORA-13157: Oracle error ORAstring encountered while string
文档解释ORA-13157:OracleerrorORAstringencounteredwhilestringCause:ThespecifiedOracleerrorwasencountered.Action:CorrecttheOracleerror.。ORA-13157:OracleerrorORA13157表...
ORA-48123: error encountered when attempting to flush a file
文档解释ORA-48123:errorencounteredwhenattemptingtoflushafileCause:TherewasanerrorencounteredwhenattemptingtoflushafilewiththeADRfileinterface.Action:Checkthestateof...
ORA-48124: device full encountered during write to a file
文档解释ORA-48124:devicefullencounteredduringwritetoafileCause:Thedevicefullerrorwasencounteredduringthewritetoafile.Action:Checktheamountoffreespaceonthedevice.ORA...