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com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection, message from server: Too many connections
最简单的办法是因为你的my.ini中设定的并发连接数太少或者系统繁忙导致连接数被占满解决方式:打开MySQL安装目录打开MY.INI找到max_connections默认是100.--实例WINDOWS解决mysql Errno.:1040错误XXXXinfo:CannotconnecttoMySQLserv...
开发笔记
·
2024-04-29
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException
Data
source
rejected
establishment
什么是RenderControl
RenderControl是一个在asp.net中使用的方法,用于将一个服务器控件的内容渲染为html,并发送到客户端进行显示。该方法可用于将服务器控件的内容作为字符串返回,或者直接将其输出到响应流中。使用RenderControl方法时,需要创建一个TextWriter对象,用于接收渲染后的内容。可以将该对象与一个S...
开发笔记
·
2024-01-29
什么
RenderControl
torch.device()
torch.device代表将torch.Tensor分配到的设备的对象,有cpu和cuda两种,这里的cuda就是gpu,至于为什么不直接用gpu与cpu对应,是因为gpu的编程接口采用的是cudaprint(torch.cuda.is_available())#cuda是否可用;print(torch.cuda.d...
开发笔记
·
2023-08-15
torch.device
ORA-55605: Incorrect Flashback Archive is specified
文档解释ORA-55605:IncorrectFlashbackArchiveisspecifiedCause:AnattemptwasmadetooperateonaFlashbackArchivethatdoesnotexist,ortocreateaFlashbackArchivethatalreadyexist...
IT技术学习
·
2023-07-28
ORA-55605
Incorrect
Flashback
Archive
is
ORA-53213: cannot access DICOM data with invalid source type
文档解释ORA-53213:cannotaccessDICOMdatawithinvalidsourcetypeCause:AninvalidsourcetypewasstoredinthesourceattributeoftheORDDicomobject.Action:SeetheOracleMultimediad...
IT技术学习
·
2023-07-28
ORA-53213
cannot
access
DICOM
data
ORA-31048: Unsaved resources cannot be updated
文档解释ORA-31048:UnsavedresourcescannotbeupdatedCause:Anattemptwasmadetoupdatearesourcethatwasneversavedtodisk.Action:Performaresourceinsertioninstead.ORA-31048:Un...
IT技术学习
·
2023-07-28
ORA-31048
Unsaved
resources
cannot
be
ORA-29374: resource plan string in top-plan string has no plan directives
文档解释ORA-29374:resourceplanstringintop-planstringhasnoplandirectivesCause:Aplanwascreatedinthependingareathatisanorphanorstand-alone.Action:Createplandirectivesi...
IT技术学习
·
2023-07-28
plan
string
ORA-29374
resource
in
ORA-55628: Flashback Archive supports Oracle 11g or higher
文档解释ORA-55628:FlashbackArchivesupportsOracle11gorhigherCause:AnattemptwasmadetocreatedaFlashbackArchivewithincorrectcompatiblemodeorwithoutautoundomanagement.Ac...
IT技术学习
·
2023-07-28
ORA-55628
Flashback
Archive
supports
Oracle
ORA-56609: Usage not supported with DRCP
文档解释ORA-56609:UsagenotsupportedwithDRCPCause:ThisusagewasnotsupportedonaDRCPconnection.Action:Useadedicatedconnectiontoperformthistask.ORA-56609错误是指应用程序不能使用数据库连...
IT技术学习
·
2023-07-28
ORA-56609
Usage
not
supported
with
ORA-29533: attempt to overwrite class or resource string while defining or compiling string.string
文档解释ORA-29533:attempttooverwriteclassorresourcestringwhiledefiningorcompilingstring.stringCause:AclassorresourcedefinedbyaSQLJsourceconflictedwithanexistingobje...
IT技术学习
·
2023-07-28
or
ORA-29533
attempt
to
overwrite
ORA-31635: unable to establish job resource synchronization
文档解释ORA-31635:unabletoestablishjobresourcesynchronizationCause:AlockusedinsynchronizingDataPumpresourcesduringjobcreationanddeletioncouldnotbeobtainedduringjobc...
IT技术学习
·
2023-07-28
ORA-31635
unable
to
establish
job
ORA-38950: Source platform string not cross platform compliant
文档解释ORA-38950:SourceplatformstringnotcrossplatformcompliantCause:Crossplatformtransportwasnotallowedforthisplatform.Action:Foralistofsupportedplatforms,queryfix...
IT技术学习
·
2023-07-28
platform
ORA-38950
Source
string
not
ORA-56512: DRCP: Failed to synchronize RAC instances [string]
文档解释ORA-56512:DRCP:FailedtosynchronizeRACinstances[string]Cause:SomeoftheRACinstanceswerenotsynchronized.Action:Performthesameoperationsonallthefailedinstances....
IT技术学习
·
2023-07-28
ORA-56512
DRCP
Failed
to
synchronize
ORA-19602: cannot backup or copy active file in NOARCHIVELOG mode
文档解释ORA-19602:cannotbackuporcopyactivefileinNOARCHIVELOGmodeCause:Youtriedtocopyorbackupafilethatwasnotclosedcleanly,andthedatabasewasinNOARCHIVELOGmode.Thisisn...
IT技术学习
·
2023-07-28
ORA-19602
cannot
backup
or
copy
ORA-31147: string is not an ACL resource
文档解释ORA-31147:stringisnotanACLresourceCause:Thespecifiedresourcedidnotconformtoacl.xsdschema.Action:Specifyavalidpathfortheelementandresubmitstatement.ORA-31147...
IT技术学习
·
2023-07-28
ORA-31147
string
is
not
an
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