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#of
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
C#读取Excel报错:未在本地计算机上注册Microsoft.ACE.OLEDB.12.0提供程序
解决访问Excel数据源时出现未在本地计算机上注册Microsoft.ACE.OLEDB.12.0提供程序1、确保安装了Microsoft.ACE.OLEDB.12.0驱动http://download.microsoft.com/download/7/0/3/703ffbcb-dc0c-4e19-b0da-14639...
开发笔记
·
2023-12-01
读取
Excel
报错
未在
本地
ORA-54531: invalid orientation for element at element offset
文档解释ORA-54531:invalidorientationforelementatelementoffsetCause:Theorientationofthecurrentgeometrywasnotvalid.Action:Reversetheorientationofthegeometry.ORA-54531...
IT技术学习
·
2023-07-28
element
ORA-54531
invalid
orientation
for
ORA-29309: export dump file was generated by different version of DBMS_PITR package
文档解释ORA-29309:exportdumpfilewasgeneratedbydifferentversionofDBMS_PITRpackageCause:TheversionofDBMS_PITRisdifferentfromtheversionofthecloneddatabase.Action:Loadt...
IT技术学习
·
2023-07-28
ORA-29309
export
dump
file
was
ORA-44742: Cannot alter columns of a table that is shared by other group(s).
文档解释ORA-44742:Cannotaltercolumnsofatablethatissharedbyothergroup(s).Cause:Anattemptwasmadetoaddcolumnsto,modifycolumnsof,ordropcolumnsfromatablesharedbyothergro...
IT技术学习
·
2023-07-28
ORA-44742
Cannot
alter
columns
of
ORA-27457: argument string of job “string.string” has no value
文档解释ORA-27457:argumentstringofjob“string.string”hasnovalueCause:Novaluewasprovidedforthejobargumentwiththespecifiedposition.Action:Provideavaluefort...
IT技术学习
·
2023-07-28
ORA-27457
argument
string
of
job
ORA-32486: unsupported operation in recursive branch of recursive WITH clause
文档解释ORA-32486:unsupportedoperationinrecursivebranchofrecursiveWITHclauseCause:TherecursivecomponentoftheUNIONALLinarecursiveWITHclauseelementusedanoperationthat...
IT技术学习
·
2023-07-28
recursive
ORA-32486
unsupported
operation
in
ORA-64110: XMLIndex: problems encountered during the gathering of statistics
文档解释ORA-64110:XMLIndex:problemsencounteredduringthegatheringofstatisticsCause:Seeassociatederrormessage.Action:Correcttheerrorandretrycommand.ORA-64110是Oracle数据...
IT技术学习
·
2023-07-28
ORA-64110
XMLIndex
problems
encountered
during
ORA-29874: warning in the execution of ODCIINDEXALTER routine
文档解释ORA-29874:warningintheexecutionofODCIINDEXALTERroutineCause:AwaringwasreturnedfromtheODCIIndexAlterroutine.Action:Checktoseeiftheroutinehasbeencodedcorrectl...
IT技术学习
·
2023-07-28
ORA-29874
warning
in
the
execution
ORA-32313: REFRESH FAST of “string”.”string” unsupported after PMOPs
文档解释ORA-32313:REFRESHFASTof“string”.”string”unsupportedafterPMOPsCause:APartitionMaintenanceOperation(PMOP)hasbeenperformedonadetailtabl...
IT技术学习
·
2023-07-28
ORA-32313
REFRESH
FAST
of
#8220string
ORA-30364: this level has the same set of columns as another
文档解释ORA-30364:thislevelhasthesamesetofcolumnsasanotherCause:Theleveldefinitioncontainedthesamesetofcolumnsasanotherlevel.Action:Eliminatetheredundantleveldefini...
IT技术学习
·
2023-07-28
ORA-30364
this
level
has
the
ORA-41662: number of primitive events in the composite event exceeds maximum limit
文档解释ORA-41662:numberofprimitiveeventsinthecompositeeventexceedsmaximumlimitCause:Anattemptwasmadetocreateacompositeeventstructurewithmorethan32primitiveevents.A...
IT技术学习
·
2023-07-28
ORA-41662
number
of
primitive
events
ORA-46012: The value of the “privilege” element is too long.
文档解释ORA-46012:Thevalueofthe“privilege”elementistoolong.Cause:ThespecifiedlengthfortheprivilegeelementoftheattributeSecelementintheDataSecuritypolicy...
IT技术学习
·
2023-07-28
ORA-46012
The
value
of
the
ORA-31128: The event handler calls cannot exceed the depth of string
文档解释ORA-31128:TheeventhandlercallscannotexceedthedepthofstringCause:Triedtofireaneventwithdepthexceedingthemaximum.Action:Makesuretheeventthatisbeingfireddoesno...
IT技术学习
·
2023-07-28
ORA-31128
The
event
handler
calls
ORA-28085: The input and output lengths of the redaction do not match.
文档解释ORA-28085:Theinputandoutputlengthsoftheredactiondonotmatch.Cause:Asspecified,theredactionparametersproducedanoutputwithalengthdifferenttothatoftheinput.Acti...
IT技术学习
·
2023-07-28
ORA-28085
The
input
and
output
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