#SPA

hadoop spark介绍

Hadoop和Spark是两个开源的大数据处理框架。Hadoop是一个分布式存储和处理大规模数据的框架,而Spark是一个快速的、通用的数据处理引擎,可以在Hadoop上运行。它们都能够处理大规模的数据,但是Hadoop更适合处理批处理数据,而Spark则更适合处理流数据和交互式查询。Hadoop和Spark都是用Ja...
开发笔记 ·2024-08-31

HTML 标签的rowspan属性

一个跨越两行的单元格:<tablewidth="100%"border="1"> <tr>   <th>月份</th>   <th>存款</th...
开发笔记 ·2024-08-10

ORA-55366: unknown namespace prefix “string”

文档解释ORA-55366:unknownnamespaceprefix“string”Cause:AnattemptwasmadetomakeuseofanundefinednamespaceprefixinOracleVirtualPrivateDatabase(VPD)metadata.A...

ORA-25100: TABLESPACE option can only be used with ALTER INDEX REBUILD

文档解释ORA-25100:TABLESPACEoptioncanonlybeusedwithALTERINDEXREBUILDCause:TheTABLESPACEoptiontoALTERINDEXwasusedwithouttheREBUILDoption.Action:UseALTERINDEXREBUILDT...

ORA-30968: invalid XPATH or NAMESPACE option for XML Index

文档解释ORA-30968:invalidXPATHorNAMESPACEoptionforXMLIndexCause:Anattemptwasmadetouseanunsupportedoption.Action:Usetheappropriateoption.ORA-30968异常消息表明,您尝试创建的XML索引的...

ORA-39907: Index string.string in tablespace string points to table string.string in tablespace string.

文档解释ORA-39907:Indexstring.stringintablespacestringpointstotablestring.stringintablespacestring.Cause:Informationalmessagetodescribeafailureduringtransportableco...

ORA-30625: method dispatch on NULL SELF argument is disallowed

文档解释ORA-30625:methoddispatchonNULLSELFargumentisdisallowedCause:AmembermethodofatypeisbeinginvokedwithaNULLSELFargument.Action:Changethemethodinvocationtopassin...

ORA-24940: invalid combination of string namespace, string presentation and string receive protocol

文档解释ORA-24940:invalidcombinationofstringnamespace,stringpresentationandstringreceiveprotocolCause:Aninvalidcombinationofnamespace,presentationandreceiveprotocol...

ORA-25140: string space policy cannot be specified for the string extent management

文档解释ORA-25140:stringspacepolicycannotbespecifiedforthestringextentmanagementCause:Aninvalidoptionappears.Action:MakesurethatforLOCALextentmanagementUNIFORMorAUT...

ORA-39172: Cannot remap transportable tablespace names with compatibility of string.

文档解释ORA-39172:Cannotremaptransportabletablespacenameswithcompatibilityofstring.Cause:Theuserattemptedtoremapatablespacenameinatransportabletablespacejobwhenthec...

ORA-46057: Namespace already exists

文档解释ORA-46057:NamespacealreadyexistsCause:Thespecifiedextensiblesecurityapplicationnamespacewasalreadyinexistence.Action:Executethefunctionorprocedurewithadiffe...

ORA-15563: workload replay client cannot spawn new threads

文档解释ORA-15563:workloadreplayclientcannotspawnnewthreadsCause:TheWorkloadReplayClientdoesnothaveenoughresource(CPUormemory)tospawnnewthreads.Action:Restartthewor...

ORA-55451: multi-parent workspaces not supported with RDF

文档解释ORA-55451:multi-parentworkspacesnotsupportedwithRDFCause:Anattemptwasmadetousemulti-parentworkspaceswithResourceDefinitionFramework(RDF)data.Action:NoneORA-...

ORA-39923: Default Composite Partition (Table) Tablespace string for string not contained in transportable set.

文档解释ORA-39923:DefaultCompositePartition(Table)Tablespacestringforstringnotcontainedintransportableset.Cause:Informationalmessagetodescribeafailureduringtranspor...

ORA-30046: Undo tablespace string not found in control file.

文档解释ORA-30046:Undotablespacestringnotfoundincontrolfile.Cause:Thespecifiedundotablespaceisnotpresentinthecontrolfile.Action:ModifytheCREATECONTROLFILEstatementt...
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