文档解释ORA-26040:DatablockwasloadedusingtheNOLOGGINGoptionCause:Tryingtoaccessdatainblockthatwasloadedwithout*redogenerationusingtheNOLOGGING/UNRECOVERABLEoptionAc...

文档解释ORA-26046:REFcolumnstringexpectsscopedtablenamestring;userpassedinstring.Cause:Thescopedtablenamepassedinbytheuserdoesnotmatchthenameintheschema.Action:Spec...

文档解释ORA-32604:invalidREBUILDoptionCause:KeywordFREEPOOLSexpectedaftertheREBUILDkeyword.Action:UsermustspecifyFREEPOOLSkeyword.ORA-32604:invalidREBUILDoption这是一个...

文档解释ORA-22604:TDShandlealreadygeneratedCause:AttempttogeneateTDSthatisalreadygenearated.Action:UseaTDShandlethatisinitializedbutnotyetgenerated....

文档解释ORA-26041:DATETIME/INTERVALdatatypeconversionerrorCause:ThecolumncouldnotbeconvertedfromDATETIME*datatypetointernalDATETIME/CHARACTERdatatype.Action:Contact...

文档解释ORA-26048:ScopedREFcolumnhaswrongtablename.Cause:Thescopedtablenamepassedinbytheuserdoesnotmatchthenameintheschema.Action:Specifythecorrecttablenameforthesc...

文档解释ORA-26049:UnscopedREFcolumnhasnon-existenttablename.Cause:Thetablenamepassedinbytheuserdoesnotexistintheschema.Action:SpecifyavalidtablenamefortheunscopedRE...

文档解释Errornumber:MY-012604;Symbol:ER_IB_MSG_779;SQLSTATE:HY000Message:%s错误说明：错误代码MY-012604，又称ER_IB_MSG_779，是MySQL的可恢复的错误，SQLSTATE的代码为HY000。它表明存储引擎检测到了无法恢复的受保护错误，...

题　　f和m两种字母组成字符串，fmf 和 fff这种为不安全的字符串，现在有2*L个字母，问你有多少安全的字符串。答案modM。　　递推，这题本意是要用矩阵快速幂。不过我发现这题好神奇，只要适当的减少取模的次数，就可以水过去（呵呵呵）。　　当时做这题的时候用的是比较奇怪的递推式，然后超时了，但是两...