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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
nullable是什么意思
nullable是一个概念,它指的是可以被设置为null的值。它可以用来表示一个变量或者一个属性的值不存在,或者说这个值本身就是null。在编程语言中,nullable通常用于表示一个变量或者属性的值不存在,或者说这个值本身就是null。例如,在Java中,你可以使用“?”来声明一个变量是nul...
开发笔记
·
2023-12-02
nullable
是什么
意思
available: expected at least 1 bean which qualifies as autowire candidate
available:expectedatleast1beanwhichqualifiesasautowirecandidate这个错误我也是找了半天,最后排查的时候发现是自己的实现类写错了,所以注入不进去.出现这个错误一般有四个方向排查查看接口实现类是否加入注解,如service、repository等查看spring...
开发笔记
·
2023-10-20
available
expected
at
least
bean
ChatGPT Signup is currently unavailable错误提示解决方法
问题介绍:1、账号注册阶段出现的提示:Signupiscurrentlyunavailable,pleasetryagainlater2、翻译过来错误原因是:注册当前不可用,请稍后再试,是一个比较常见的报错内容; 解决方法:使用QQ邮箱注册。1、出现这一问题最大的原因是因为邮箱导致的;2、网易以及163邮箱都...
开发笔记
·
2023-08-15
ChatGPT
Signup
is
currently
unavailable
ORA-64143: Can only share an existing XMLIndex table with an XMLTYPE column.
文档解释ORA-64143:CanonlyshareanexistingXMLIndextablewithanXMLTYPEcolumn.Cause:AnattemptwasmadetoshareatablewithoutanXMLTYPEcolumn.Action:DropthegroupcontainingtheX...
IT技术学习
·
2023-07-28
an
ORA-64143
Can
only
share
ORA-38471: ROWIDs for table aliases cannot be null
文档解释ORA-38471:ROWIDsfortablealiasescannotbenullCause:Anattemptwasmadetopassanullvalueforthetablealiasattributeinthedataitem,whichisnotpermitted.Action:Passavali...
IT技术学习
·
2023-07-28
ORA-38471
ROWIDs
for
table
aliases
ORA-39034: Table string does not exist.
文档解释ORA-39034:Tablestringdoesnotexist.Cause:TheuserreferencedatableinanAPIthatdidnotexist.Action:CorrecttablenameandretryAPI.ORA-39034:Tablestringdoesnotexist.这...
IT技术学习
·
2023-07-28
ORA-39034
Table
string
does
not
ORA-32415: fast refreshable remote materialized view on a detail table with commit SCN-based materialized view log is not supported
文档解释ORA-32415:fastrefreshableremotematerializedviewonadetailtablewithcommitSCN-basedmaterializedviewlogisnotsupportedCause:Thematerializedviewcreationfailedbeca...
IT技术学习
·
2023-07-28
materialized
view
ORA-32415
fast
refreshable
ORA-26028: index string.string initially in unusable state
文档解释ORA-26028:indexstring.stringinitiallyinunusablestateCause:AnindexisinIUstatepriortothebeginningofadirect*pathload,itcannotbemaintainedbytheloader.Action:Eit...
IT技术学习
·
2023-07-28
ORA-26028
index
string.string
initially
in
ORA-31181: PL/SQL DOM handle accesses node that is no longer available
文档解释ORA-31181:PL/SQLDOMhandleaccessesnodethatisnolongeravailableCause:Thespecifiedpl/sqlhandleisreferencinganodeinaDOMDocumentthatisnolongeravailable.Action:Ens...
IT技术学习
·
2023-07-28
ORA-31181
PL
SQL
DOM
handle
ORA-25100: TABLESPACE option can only be used with ALTER INDEX REBUILD
文档解释ORA-25100:TABLESPACEoptioncanonlybeusedwithALTERINDEXREBUILDCause:TheTABLESPACEoptiontoALTERINDEXwasusedwithouttheREBUILDoption.Action:UseALTERINDEXREBUILDT...
IT技术学习
·
2023-07-28
ORA-25100
TABLESPACE
option
can
only
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-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-38808: edition has a usable parent and a usable child
文档解释ORA-38808:editionhasausableparentandausablechildCause:Anattemptwasmadetomakeaneditionwithausableparentandausablechildeditionunusable.Action:Aneditionwithaus...
IT技术学习
·
2023-07-28
usable
ORA-38808
edition
has
parent
ORA-55470: OLS may not be applied with one or more models VPD-enabled
文档解释ORA-55470:OLSmaynotbeappliedwithoneormoremodelsVPD-enabledCause:AnattemptwasmadetoOLS-enableResourceDefinitionFramework(RDF)repositorywhenoneormoremodelsisV...
IT技术学习
·
2023-07-28
ORA-55470
OLS
may
not
be
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