Dictionary主题的文章列表，还有Dictionary的技术要点_第4页

ORA-01298: conflicting dictionary option

文档解释ORA-01298:conflictingdictionaryoptionCause:MorethanonedictionarysourcewasspecifiedorDDL_DICT_TRACKINGwasspecifiedwithDICT_FROM_ONLINE_CATALOG.Action:None这是一...

IT技术学习 ·2023-07-08

ORA-01332: internal Logminer Dictionary error

文档解释ORA-01332:internalLogminerDictionaryerrorCause:UnexpectederrorconditionAction:Checktraceand/oralertlogsORA-01332:internalLogminerDictionary错误是指内部Logminer字典错...

IT技术学习 ·2023-07-08

ORA-16208: Logical standby dictionary build failed to start.

文档解释ORA-16208:Logicalstandbydictionarybuildfailedtostart.Cause:Failuretostartthelogicalstandbydictionarybuildprocess(LSP1)Action:Checktheaccompanyingmessages,an...

IT技术学习 ·2023-07-08

ORA-01294: error occurred while processing information in dictionary file string, possible corruption

文档解释ORA-01294:erroroccurredwhileprocessinginformationindictionaryfilestring,possiblecorruptionCause:Thedictionaryfileiscorrupt.Action:Getanewdictionaryfile.ORA-...

IT技术学习 ·2023-07-08

ORA-28506: parse error in data dictionary translation for string stored in string

文档解释ORA-28506:parseerrorindatadictionarytranslationforstringstoredinstringCause:AreferencetoanORACLEdatadictionarytableorviewnameonaheterogeneousdatabaselinktoa...

IT技术学习 ·2023-07-08

ORA-01334: invalid or missing logminer dictionary processes context

文档解释ORA-01334:invalidormissinglogminerdictionaryprocessescontextCause:UnexpectedinternalerrorconditionAction:NoneORA-01334是ORACLE最常见的错误之一，指的是logminer字典进程上下文无效或缺...

IT技术学习 ·2023-07-06

ORA-01297: redo version mismatch between dictionary string and logfiles

文档解释ORA-01297:redoversionmismatchbetweendictionarystringandlogfilesCause:Theredoversionofthedatabasegeneratingthedictionaryisdifferentfromtheonegeneratingthelog...

IT技术学习 ·2023-07-06

ORA-01295: DB_ID mismatch between dictionary string and logfiles

文档解释ORA-01295:DB_IDmismatchbetweendictionarystringandlogfilesCause:Thedictionaryfileisproducedbyadatabasethatisdifferentfromthatproducedthelogfiles.Action:Speci...

IT技术学习 ·2023-07-06

ORA-01327: failed to exclusively lock system dictionary as required by build

文档解释ORA-01327:failedtoexclusivelylocksystemdictionaryasrequiredbybuildCause:OtherusersareperformingDDLoperations.Action:NoneORA-01327系统词典锁定失败错误消息。当尝试构建一个专用锁时，Or...

IT技术学习 ·2023-07-05

ORA-01339: LogMiner BUILD: Error copying system catalog metadata to LogMiner dictionary

文档解释ORA-01339:LogMinerBUILD:ErrorcopyingsystemcatalogmetadatatoLogMinerdictionaryCause:Unexpectedresultwhileaccessingsystemcatalogmetadata.Action:Checkthealertl...

IT技术学习 ·2023-07-05

MySQL Error number: 3555; Symbol: ER_NO_SYSTEM_TABLE_ACCESS_FOR_DICTIONARY_TABLE; SQLSTATE: HY000

文档解释Errornumber:3555;Symbol:ER_NO_SYSTEM_TABLE_ACCESS_FOR_DICTIONARY_TABLE;SQLSTATE:HY000Message:datadictionarytable错误说明：ER_NO_SYSTEM_TABLE_ACCESS_FOR_DICTIONAR...

IT技术学习 ·2023-06-17

C# 的 ToDictionary()

ToArray()、ToList()为我们带来了巨大方便。ToDictionary()也不赖。ToDictionary()有2个参数，一个是key、一个是value。比如：ToDictionary(m => m.Id, m => m.Name);如上将Id属...

代码星球 ·2023-04-16

C# Dictionary 如何取 Key 和 Value

for (int i = 0; i < dic2.Count; i++){var key = dic2.Keys.ElementAt(i);var value = dic2....

代码星球 ·2023-04-16

使用 Dictionary 代替 List.Where，提高速度

在C#中，有一List，有上万条数据项，每个数据项，又是一个类，List.Where去查找符合条件的类，然后计算，由于不断地调用List.Where，整个时间耗时约2分钟。不能忍受该时间。由于每调一次List.Where，就去循环一次，所以考虑使用Dictionary来代替，Where中判断条件，写作key，需要输出的...

代码星球 ·2023-04-16

Dictionary 用 LINQ、Where

Dictionary用LINQ、Where（LINQ的固化功能版本），并不能做太多事情，跟List那些不一样。Dictionary<string,int>dic=newDictionary<string,int>();dic.Add("a1",1);dic.Add("a2",2);dic.Add...

代码星球 ·2023-04-16