文档解释ORA-14084:youmayspecifyTABLESPACEDEFAULTonlyforaLOCALindexCause:UserattemptedtospecifyTABLESPACEDEFAULTforanobjectotherthanaLOCALindex,whichisillegal.Action...

文档解释ORA-31408:invalidvaluespecifiedforbegin_scnorend_scnCause:Thebegin_scnwasnotgreaterthanzero.Theend_scnwaslessthanzero.Theend_scnwaslessthanthebegin_scn.Acti...

文档解释ORA-14083:cannotdroptheonlypartitionofapartitionedtableCause:AdroppartitioncommandisbeingexecutedwhenthereisonlyonepartitioninthetableAction:Ensurethatthere...

文档解释ORA-14081:newpartitionnamemustdifferfromtheoldpartitionnameCause:UserenteredALTERTABLE/INDEXRENAMEPARTITIONspecifyingwhichisidenticaltothenameofthepartition...

文档解释ORA-14082:newpartitionnamemustdifferfromthatofanyotherpartitionoftheobjectCause:UserenteredALTERTABLE/INDEXRENAMEPARTITIONspecifyingwhichisidenticaltothenam...

文档解释ORA-14080:partitioncannotbesplitalongthespecifiedhighboundCause:Userattemptedtosplitapartitionalongaboundwhicheithercollateshigherthanthatofthepartitiontobe...

文档解释ORA-14086:apartitionedindexmaynotberebuiltasawholeCause:UserattemptedtorebuildapartitionedindexusingALTERINDEXREBUILDstatement,whichisillegalAction:Rebuildt...

文档解释ORA-14085:partitionedtablecannothavecolumnwithLONGdatatypeCause:UsertriedtocreateapartitionedtablewithaLONGdatatypeortriedtoaddaLONGdatatypecolumntoapartiti...

文档解释Errornumber:MY-011408;Symbol:ER_KEYRING_ENCRYPTED_FILE_INVALID_KEYRING_DIR;SQLSTATE:HY000Message:keyring_encrypted_file_datacannotbesettonewvalueasthekeyrin...

^开头, [^]非$字符结尾(每行)转义.匹配除外其他词?前面0次或者1次*前面的0+次{n}n次{n,}n+次{n,m}n-m次|或[123][0,3]集合,[123]匹配123是不成立[1-3][a-z][A-Z]集合范围[^123][^a-z]集合非d0-9D非数字s空,包含fvS非空()分组/正则/修...

题目链接题意：　　击球训练中，你击中一个球的概率为p，连续击中k1个球，或者连续击空k2个球，则训练结束。　　求结束训练所击球次数的期望。 思路：　　设f[x]为连续击中x个球，距离结束训练所需要的期望　　设g[x]为连续击空x个球，距离结束训练所需要的期望　　　　f[x]=p*(f[x+1]+1)+(1-p...