can’topenfile(errno:24)有的时候，数据库跑得好好的，突然报不能打开数据库文件的错误了。解决思路：首先我们要先查看数据库的errorlog。然后判断是表损坏，还是权限问题。还有可能磁盘空间不足导致的不能正常访问表;操作系统的限制也要关注下;用perror工具查看具体错误!linux:/u...

Rstudio下载一个文件出现InternetOpenUrlfailed问题>source("http://www.statmethods.net/RiA/wmc.txt")Errorinfile(filename,"r",encoding=encoding): ...

如果你的系统是64位的话，在使用最新的树莓派的64位系统。使用旧版本的WiringPi来进行IO控制的时候，由于原版已经不再更新，对于新的树莓派使用时存在指令无法使用的问题。 ...

文档解释ORA-48121:errorwithopeningtheADRstreamfile[string][string]Cause:AnerrorwasencounteredwhenattemptingtoopenanADRstreamfile.Action:Checktherestoftheerrorstackf...

文档解释ORA-48180:OSopensystemcallfailureCause:OSopensystemcallfailed.Thesystemfailedtoopenorcreateafileintherequestedmode.Action:ChecktheOSerrorcodeORA-48180:OSope...

文档解释ORA-30678:toomanyopenconnectionsCause:Anattempttoopenaconnectionfailedbecausetoomanyarealreadyopenbythissession.Thenumberofallowedconnectionsvariesassomemay...

文档解释ORA-48251:FailedtoopenrelationduetofollowingerrorCause:SeeerrorbelowintheerrorstackAction:Seeerrorbelowintheerrorstack：ORA-48251错误是指Oracle数据库无法正常的打开某个关系表或关系...

文档解释ORA-19955:onlyoneopenthreadisallowedtochangetheDBIDCause:Theoperationfailedbecausetherewereactivethreadsinthedatabase.Themostlikelycauseisthatthedatabasecra...

文档解释ORA-16433:Thedatabasemustbeopenedinread/writemode.Cause:Anattemptwasmadetoopenthedatabaseinread-onlymodeafteranoperationthatrequiresthatthedatabasebeopenedi...

文档解释ORA-16669:instancecannotbeopenedbecausetheActiveDataGuardoptionisdisabledCause:TheattempttoopentheinstancefailedbecausetheActiveDataGuardoptionwasnotenabled...

文档解释ORA-41305:FailedtoopenfileCause:Youmaynothavesufficientprivilegesforthisaction.Action:Ensurethatthefileexistsandthatyouhavesufficientprivilegesforthisaction...

文档解释ORA-27078:unabletodeterminelimitforopenfilesCause:Thegetrlimit()systemcallreturnedanerror.Action:Checkerrno.ORA-27078:指示Oracle无法确定系统中可以打开文件的数量限制。它在Unix和Linu...

文档解释ORA-48112:invalidflagsforopenfile,stringCause:Invalidflagswerepassedintotheopenfileroutine.Action:Checktoseeiftheflagsareavalidcombination.ORA-48112:invalid...

文档解释ORA-24401:cannotopenfurtherconnectionsCause:Sufficientnumberofconnectionsarenotpresentinthepooltoexecutethecall.NonewconnectionscanbeopenedastheconnMaxparam...

文档解释ORA-17503:ksfdopn:stringFailedtoopenfilestringCause:fileopenfailedduetoeitherinsufficientOSpermissionorthenameoffileexceedsmaximumfilenamelength.Action:chec...