#4034

ORA-24034: application string is already a subscriber for queue string

文档解释ORA-24034:applicationstringisalreadyasubscriberforqueuestringCause:Anapplicationnamethatwasalreadyasubscriberforthequeuewasspecifiedinthedbms_aq.subscribeca...

ORA-54034: virtual columns not allowed in functional index expressions

文档解释ORA-54034:virtualcolumnsnotallowedinfunctionalindexexpressionsCause:Anattemptwasmadetocreateafunctionalindexwithanexpressiondefinedononeormorevirtualcolumns...

ORA-40341: access violation on model storage object

文档解释ORA-40341:accessviolationonmodelstorageobjectCause:Anattemptwasmadetodirectlyaccess/modifyaschemaobjectthatstoresmodelmetadataandcontent.Action:Performallmi...

ORA-04034: unable to shrink pool to specified size

文档解释ORA-04034:unabletoshrinkpooltospecifiedsizeCause:Thepoolcouldnotshrinktothespecifiedsizeasitcouldnotfreememory.Action:Specifyalargervaluetowhichtoshrinkthep...

MySQL Error number: MY-014034; Symbol: ER_PRIVILEGE_DEREGISTRATION; SQLSTATE: HY000

文档解释Errornumber:MY-014034;Symbol:ER_PRIVILEGE_DEREGISTRATION;SQLSTATE:HY000Message:Cannotunregisterprivilege‘%s’.Pleasecheckifitwasregisteredproperl...

MySQL Error number: 4034; Symbol: ER_GIS_DIFFERENT_SRIDS_AGGREGATION; SQLSTATE: 22S05

文档解释Errornumber:4034;Symbol:ER_GIS_DIFFERENT_SRIDS_AGGREGATION;SQLSTATE:22S05Message:Argumentstofunction%scontainsgeometrieswithdifferentSRIDs:%uand%u.Allgeomet...
IT技术学习 ·2023-06-25

BZOJ4034 [HAOI2015]树上操作 树链剖分

有一棵点数为N的树,以点1为根,且树点有边权。然后有M个操作,分为三种:操作1:把某个节点x的点权增加a。操作2:把某个节点x为根的子树中所有点的点权都增加a。操作3:询问某个节点x到根的路径中所有点的点权和。   树链剖分。  然后对于子树修改,我们可以考虑dfs序。  树链剖分也是一种dfs序。  单点修...