EXC主题的文章列表，还有EXC的技术要点_第1页

解决"requests.exceptions.SSLError: HTTPSConnectionPool"报错问题

在处理Pythonrequests模块抓取数据的时候，有提示"requests.exceptions.SSLError:HTTPSConnectionPool"报错问题。于是我们只需要在requests.get请求中加入 verify=False 参数即可。但是这样之后还是有很多...

开发笔记 ·2024-08-29

R语言读取excel文件的3种方法

R读取excel文件中数据的方法：电脑有一个excel文件，原始的文件路径是：E:Rworkshopmydataiomexcel数据为5乘2阶矩阵，元素为 Year ...

开发笔记 ·2024-08-10

java.sql.SQLException: Access denied for user root@172.16.2.20 (using password: YES)

启动spring架构连接数据库时，报错：java.sql.SQLException:Accessdeniedforuser'root'@'172.16.2.20'(usingpassword:YES)解决：1.在架构连接数据库的位置增加&zeroDateTimeBehavior=...

开发笔记 ·2024-08-08

com.alibaba.druid.pool.DruidDataSource : create connection SQLException, url: jdbc:mysql:/解决方法详解

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException:Couldnotcreateconnectiontodatabaseserver.具体错误信息如下：2021-01-0420:20:09.071ERROR12300---[eate-...

开发笔记 ·2024-07-11

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

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

c# 读取excel时报错：外部表不是预期的格式

///<summary>///加载Excel-郑州网建Camnpr.Com///</summary>///<paramname="filePath">excel文件地址</param>///<returns>DataSet</returns>pub...

开发笔记 ·2023-12-01

ORA-56722: I/O request limit exceeded – call aborted

文档解释ORA-56722:I/Orequestlimitexceeded–callabortedCause:TheResourceManagerSWITCH_IO_REQSlimitwasexceeded.Action:Reducethecomplexityoftheupdateorquery,orcon...

IT技术学习 ·2023-07-28

ORA-32409: materialized view log on “string”.”string” already excludes new values

文档解释ORA-32409:materializedviewlogon“string”.”string”alreadyexcludesnewvaluesCause:Thematerializedviewlogontheindicatedtablealreadyexclud...

IT技术学习 ·2023-07-28

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-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-25256: consumer cannot be specified with a single-consumer queue or an exception queue

文档解释ORA-25256:consumercannotbespecifiedwithasingle-consumerqueueoranexceptionqueueCause:Anattemptwasmadetospecifyaconsumerinthesubscriptionstringwhenregistering...

IT技术学习 ·2023-07-28

ORA-48201: Field Length Exceeds Maximum [string] [string] [string]

文档解释ORA-48201:FieldLengthExceedsMaximum[string][string][string]Cause:Anillegalfieldlengthwasused.Action:Fixthecall.。ORA-48201：字段长度超出最大值[string][string][string]O...

IT技术学习 ·2023-07-28

ORA-64115: XMLIndex Exchange Partition: the table has no XMLIndex

文档解释ORA-64115:XMLIndexExchangePartition:thetablehasnoXMLIndexCause:Thenon-partitionedtablehadnoXMLIndex.Action:NoneORA-64115:XMLIndexExchangePartition错误是指用户在对带有...

IT技术学习 ·2023-07-28

ORA-48411: The trace files exceeds the maximum number [string]

文档解释ORA-48411:Thetracefilesexceedsthemaximumnumber[string]Cause:TheinputtracefilepathnumberexceedsthemaximumnumberAction:InputlesstracefilepathORA-48411错误是由于存取数...

IT技术学习 ·2023-07-28