scn主题的文章列表，还有scn的技术要点_第5页

ORA-31497: invalid value specified for first_scn

文档解释ORA-31497:invalidvaluespecifiedforfirst_scnCause:Thefirst_scnwasnotgreaterthanzeroorwaslessthanthepreviousvalueoffirst_scn.Action:Checkthevalueoffirst_scn.C...

IT技术学习 ·2023-07-08

ORA-08209: scngrs: SCN not yet initialized

文档解释ORA-08209:scngrs:SCNnotyetinitializedCause:TheSystemCommitNumberhasnotyetbeeninitialized.Action:Contactyourcustomersupportrepresentative.。ORA-08209：指定的系统更改号...

IT技术学习 ·2023-07-08

ORA-32425: asynchronous and scheduled purge option is not allowed on commit SCN-based materialized view log

文档解释ORA-32425:asynchronousandscheduledpurgeoptionisnotallowedoncommitSCN-basedmaterializedviewlogCause:AnattemptwasmadetocreateoralteracommitSCN-basedmaterializ...

IT技术学习 ·2023-07-08

ORA-23654: Attempting to set the oldest SCN to a greater value (string) than the current one (string) at Apply string

文档解释ORA-23654:AttemptingtosettheoldestSCNtoagreatervalue(string)thanthecurrentone(string)atApplystringCause:ThenewvaluefortheoldestSCNwasnotcomputedcorrectly.Ac...

IT技术学习 ·2023-07-08

ORA-19931: file string has invalid creation SCN string

文档解释ORA-19931:filestringhasinvalidcreationSCNstringCause:Whenopeningthefiletobeplacedinacopyorbackupset,tobeinspected,thefileheaderwasnotrecognizedasavalidheade...

IT技术学习 ·2023-07-08

ORA-01370: Specified restart SCN is too old

文档解释ORA-01370:SpecifiedrestartSCNistoooldCause:specifiedrestartscnistooold,logmnrcouldnotfindapropercheckpoint.Action:SpecifyabiggerrestartSCNtotryagain。ORA-013...

IT技术学习 ·2023-07-08

ORA-04935: unable to get/convert SCN recovery lock

文档解释ORA-04935:unabletoget/convertSCNrecoverylockCause:AprocesshastimedouttryingtogetorconverttheSCNrecoverylock.AnotherprocessprobablyhasthelockinEXorSHRmode,bu...

IT技术学习 ·2023-07-08

ORA-26687: no instantiation SCN provided for “string”.”string” in source database “string”

文档解释ORA-26687:noinstantiationSCNprovidedfor“string”.”string”insourcedatabase“string”Cause:ObjectSCNwasnotset.Iftheobjectisat...

IT技术学习 ·2023-07-08

ORA-08320: scnget: Call to scnget before scnset or scnfnd.

文档解释ORA-08320:scnget:Calltoscngetbeforescnsetorscnfnd.Cause:AninternalerrorAction:Contactyourcustomersupportrepresentative.等ORA-08320：scnget：在scnset或scnfnd之前调用s...

IT技术学习 ·2023-07-08

ORA-19930: file string has invalid checkpoint SCN string

文档解释ORA-19930:filestringhasinvalidcheckpointSCNstringCause:Whenopeningthefiletobeplacedinacopyorbackupset,tobeinspected,thefileheaderwasnotrecognizedasavalidhea...

IT技术学习 ·2023-07-06

ORA-01203: wrong incarnation of this file – wrong creation SCN

文档解释ORA-01203:wrongincarnationofthisfile–wrongcreationSCNCause:ThecreationSCNinthefileheaderisnotthesameasthecreationSCNinthecontrolfile.Thisisprobablyaco...

IT技术学习 ·2023-07-05

oracle行跟踪（基于行跟踪的ROWDEPENDENCIES ORA_ROWSCN信息）

在Oracle10g中的引入了ORA_ROWSCN伪列新特性。基于此种伪列所提供的信息，我们可以方便地找出某个数据块或某一个行最近被修改的时间戳。在默认情况下，10g下表会以非行依赖性(NOROWDEPENDENCIES)的属性创建，这意味着我们可观察的ORA_ROWSCN信息是以块级跟踪的，无法分辨同一块内的多行间不...

代码星球 ·2021-02-11

Oracle SCN 详解

一、简介scn，systemchangenumber在某个时间点定义数据库已提交版本的时间戳标记，Oracle为每个已提交事务分配一个唯一的scn，scn值是对数据库进行更改的逻辑时间点。scn是一个6字节的数字，分为两部分，scn_base和scn_wrap，scn_base是一个四字节的数字，scn_wrap是一个...

代码星球 ·2020-04-12