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MySQL数据库的mysqldump命令使用

mysqldump 是 MySQL 自带的逻辑备份工具。它的备份原理是通过协议连接到 MySQL 数据库，将需要备份的数据查询出来，将查询出的数据转换成对应的insert 语句，当我们需要还原这些数据时，只要执行这些 insert 语句，即...

开发笔记 ·2024-10-16

表损坏提示is marked as crashed and should be repaired处理方法

表损坏提示ismarkedascrashedandshouldberepaired处理方法这个数据表损坏的提示通常是非正常关机或者硬盘占满后MySQL无法正常运行造成的。损坏的是*.MYI文件，该文件是用来存放数据表的索引。MySQL自带了专门用于数据表检查和修复的工具，myisamchk。到达...

开发笔记 ·2024-10-09

Linux - Ldconfig 命令

一、简介ldconfig 是一个动态链接库管理命令，为了让动态链接库为系统所共享,还需运行动态链接库的管理命令 --ldconfig。 ldconfig 命令的用途,主要是在默认搜寻目录( /lib 和 /usr/lib )以及动态库配置文...

开发笔记 ·2024-09-27

Linus Torvalds(linux创始人，Linux之父)

一、Linus全名：LinusBenedict TorvaldsLinus Torvalds，无可争议的Linux之父，几乎一己之力更新维护Linux内核，绝对的大神级存在.LinuswasbornonDecember28,1969inHelsinki,Finland.Heenrolledatthe...

开发笔记 ·2024-09-20

jbuilder8有哪些功能

JBuilder8是一个Java集成开发环境（IDE），提供了许多功能来加快和简化Java应用程序的开发过程。以下是JBuilder8的一些主要功能：代码编辑器：具有语法高亮显示、代码自动完成、代码折叠、代码片段等功能，可以帮助开发人员快速编写和编辑Java代码。调试器：可以对Java代码进行调试，设置断点、监视变量、...

开发笔记 ·2024-01-29

ORA-38810: Implementation restriction: cannot drop edition that has a parent and a child

文档解释ORA-38810:Implementationrestriction:cannotdropeditionthathasaparentandachildCause:Thiserroroccurredbecauseanattemptwasmadetodropaneditionthathasaparentandac...

IT技术学习 ·2023-07-28

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-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

ORA-28028: could not authenticate remote server

文档解释ORA-28028:couldnotauthenticateremoteserverCause:Duringthecourseofopeningaprivilegeddatabaselink,theremoteserverwasnotsecurelyidentifiedusingthenetworksecuri...

IT技术学习 ·2023-07-28

ORA-29511: could not resolve Java class

文档解释ORA-29511:couldnotresolveJavaclassCause:ACREATEANDRESOLVENOFORCEJAVACLASScommandspecifieddefinitiondatathatcouldnotberesolved,orresolutionfailedforsomerefer...

IT技术学习 ·2023-07-28

ORA-28387: Could not acquire an enqueue for wallet operation in Oracle RAC

文档解释ORA-28387:CouldnotacquireanenqueueforwalletoperationinOracleRACCause:EnqueuetoblockTDEoperationsinOracleRACdatabasecouldnotbeobtained.Action:Retrythewalleto...

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-30505: system triggers should not reference a column in a WHEN clause

文档解释ORA-30505:systemtriggersshouldnotreferenceacolumninaWHENclauseCause:AnattemptwasmadetouseaWHENclausetoreferenceacolumnwithasystemtrigger,butthistypeoftrigge...

IT技术学习 ·2023-07-28

ORA-26942: LCR should not contain old value for column string in table string.string

文档解释ORA-26942:LCRshouldnotcontainoldvalueforcolumnstringintablestring.stringCause:TheLCRcontainedoldvaluesforLOB,XMLTypeandobjectcolumns.Action:Removeoldvaluesf...

IT技术学习 ·2023-07-28

ORA-16443: could not switch out of log string thread string

文档解释ORA-16443:couldnotswitchoutoflogstringthreadstringCause:ALTERSYSTEMFLUSHREDOTOSTANDBYcouldnotswitchoutofthecurrentlog.Action:Thiscanhappenifthereareoneormor...

IT技术学习 ·2023-07-28