OI主题的文章列表，还有OI的技术要点_第15页

MySQL Error number: 3916; Symbol: ER_DA_GRP_RPL_STARTED_AUTO_REJOIN; SQLSTATE: HY000

文档解释Errornumber:3916;Symbol:ER_DA_GRP_RPL_STARTED_AUTO_REJOIN;SQLSTATE:HY000Message:Startedauto-rejoinprocedureattempt%luof%lu错误说明ER_DA_GRP_RPL_STARTED_AUTO_REJ...

IT技术学习 ·2023-06-19

MySQL Error number: 3975; Symbol: ER_DA_GRP_RPL_RECOVERY_ENDPOINT_INVALID; SQLSTATE: HY000

文档解释Errornumber:3975;Symbol:ER_DA_GRP_RPL_RECOVERY_ENDPOINT_INVALID;SQLSTATE:HY000Message:Theserverisnotlisteningonendpoint‘%s’.Onlyendpointsthatthe...

IT技术学习 ·2023-06-19

MySQL Error number: MY-013294; Symbol: ER_WARNING_RETAIN_CURRENT_PASSWORD_CLAUSE_VOID; SQLSTATE: HY000

文档解释Errornumber:MY-013294;Symbol:ER_WARNING_RETAIN_CURRENT_PASSWORD_CLAUSE_VOID;SQLSTATE:HY000Message:RETAINCURRENTPASSWORDignoredforuser‘%s’@’...

IT技术学习 ·2023-06-19

MySQL Error number: MY-013594; Symbol: ER_GRP_RPL_RECOVERY_ENDPOINT_INTERFACES_IPS; SQLSTATE: HY000

文档解释Errornumber:MY-013594;Symbol:ER_GRP_RPL_RECOVERY_ENDPOINT_INTERFACES_IPS;SQLSTATE:HY000Message:FailedtoretrieveIPaddressesfromenabledhostnetworkinterfaces.错...

IT技术学习 ·2023-06-17

MySQL Error number: MY-013866; Symbol: ER_IB_MSG_RECOVERY_CHECKPOINT_OUTSIDE_LOG_FILE; SQLSTATE: HY000

文档解释Errornumber:MY-013866;Symbol:ER_IB_MSG_RECOVERY_CHECKPOINT_OUTSIDE_LOG_FILE;SQLSTATE:HY000Message:FoundcheckpointLSN%lluinaredologfile%s,butthefilerepresent...

IT技术学习 ·2023-06-17

MySQL Error number: MY-013374; Symbol: ER_GRP_RPL_TIMEOUT_RECEIVED_VC_ON_REJOIN; SQLSTATE: HY000

文档解释Errornumber:MY-013374;Symbol:ER_GRP_RPL_TIMEOUT_RECEIVED_VC_ON_REJOIN;SQLSTATE:HY000Message:Timeoutwhilewaitingforaviewchangeeventduringtheauto-rejoinproced...

IT技术学习 ·2023-06-17

MySQL Error number: MY-013373; Symbol: ER_GRP_RPL_STARTED_AUTO_REJOIN; SQLSTATE: HY000

文档解释Errornumber:MY-013373;Symbol:ER_GRP_RPL_STARTED_AUTO_REJOIN;SQLSTATE:HY000Message:Startedauto-rejoinprocedureattempt%luof%lu错误说明：MySQL的ER_GRP_RPL_STARTED_AU...

IT技术学习 ·2023-06-17

MySQL Error number: 3039; Symbol: ER_BOOST_GEOMETRY_CENTROID_EXCEPTION; SQLSTATE: HY000

文档解释Errornumber:3039;Symbol:ER_BOOST_GEOMETRY_CENTROID_EXCEPTION;SQLSTATE:HY000Message:Unabletocalculatecentroidbecausegeometryisemptyinfunction%s.ErrorNumber30...

IT技术学习 ·2023-06-17

MySQL Error number: 3576; Symbol: ER_CTE_RECURSIVE_FORBIDDEN_JOIN_ORDER; SQLSTATE: HY000

文档解释Errornumber:3576;Symbol:ER_CTE_RECURSIVE_FORBIDDEN_JOIN_ORDER;SQLSTATE:HY000Message:InrecursivequeryblockofRecursiveCommonTableExpression‘%s’,th...

IT技术学习 ·2023-06-17

MySQL Error number: MY-013295; Symbol: ER_WARNING_DISCARD_OLD_PASSWORD_CLAUSE_VOID; SQLSTATE: HY000

文档解释Errornumber:MY-013295;Symbol:ER_WARNING_DISCARD_OLD_PASSWORD_CLAUSE_VOID;SQLSTATE:HY000Message:DISCARDOLDPASSWORDignoredforuser‘%s’@’%s...

IT技术学习 ·2023-06-17

MySQL Error number: MY-010709; Symbol: ER_TREE_CORRUPT_PARENT_SHOULD_POINT_AT_PARENT; SQLSTATE: HY000

文档解释Errornumber:MY-010709;Symbol:ER_TREE_CORRUPT_PARENT_SHOULD_POINT_AT_PARENT;SQLSTATE:HY000Message:Wrongtree:Parentdoesn’tpointatparentMY-010709;ER_TREE...

IT技术学习 ·2023-06-17

MySQL Error number: 3042; Symbol: ER_BOOST_GEOMETRY_SELF_INTERSECTION_POINT_EXCEPTION; SQLSTATE: HY000

文档解释Errornumber:3042;Symbol:ER_BOOST_GEOMETRY_SELF_INTERSECTION_POINT_EXCEPTION;SQLSTATE:HY000Message:Analysisproceduresofintersectionpointsinterruptedunexpecte...

IT技术学习 ·2023-06-17

Android高可用移动网络连接---(转载自http://wingjay.com/2019/01/

读者好，前面我们在《Android架构之网络连接与加速》和《Android架构之长连接技术》两篇文章中，讲解了 Http短连接、TCP长连接、连接复用与速度优化、数据压缩等方面的知识点。不过，真实的网络环境是很复杂的，存在各种各样的因素会导致网络服务不可用，比如DNS劫持、服务器宕机、弱网等。换言之，如果服务都不...

代码星球 ·2023-05-06

.NET 中利用 NPOI 实现图片插入

pictureData.Position = 0;var p = XWPFDocument.Paragraphs[paragraphIndex];var run = p.CreateRun();run.AddPicture(pictureD...

代码星球 ·2023-04-16

NPOI 遇到公式时的取值情况

普通情况假如：Excel单元格D1为公式：=B1+C1那么 NPOI.SS.UserModel.ICell的：CellType为 NPOI.SS.UserModel.CellType.Formula。CellFormula为B1+C1，注意：没有等于号；同时会格式化（比如本来公式+前后有空格，这里取...

代码星球 ·2023-04-16