#Main

Java中的main()方法是强制性的吗?

"main()"方法是Java程序的入口点,它提供了程序的初始化、参数传递、控制流程和返回值等功能,是Java程序运行的基础。...

pycharm运行时,can t find __main__ module in ... ... 的问题解决

 在运行pycharm时遇到:can’tfind‘main’modulein‘’报错(如图),是因为未配置要运行哪个.py文件导致的。  我们可以通过两种方式解决该问题:1.直接右击,然后run当前的.py文件即可。 2...

ORA-29953: cannot issue DDL on a domain index partition marked as FAILED

文档解释ORA-29953:cannotissueDDLonadomainindexpartitionmarkedasFAILEDCause:TriedtoissueaDROP/ALTERonadomainindexpartitioninaFAILEDstate.Action:doALTERINDEXREBUILDPA...
IT技术学习 ·2023-07-28

ORA-29846: cannot create a local domain index on a string partitioned table

文档解释ORA-29846:cannotcreatealocaldomainindexonastringpartitionedtableCause:Userspecifiedacreatelocaldomainindexstatementonatablepartitionedusingamethodnotsupport...

ORA-38433: index “string” could not be maintained due to “string”

文档解释ORA-38433:index“string”couldnotbemaintaineddueto“string”Cause:Theerrorwascausedbytherecursiveoperation.Action:Fixtheerrorandretry.OR...

ORA-39294: Cannot alter indextype of domain index.

文档解释ORA-39294:Cannotalterindextypeofdomainindex.Cause:DBMS_METADATA_DIFFwascomparingtwobitmapdomainindexeswithdifferentindextypes.ThereisnoSQLALTERstatementtoal...

ORA-29851: cannot build a domain index on more than one column

文档解释ORA-29851:cannotbuildadomainindexonmorethanonecolumnCause:Userattemptedtobuildadomainindexonmorethanonecolumn.Action:Buildthedomainindexonlyonasinglecolumn....

ORA-13546: Error encountered during maintenance of Adaptive Thresholds

文档解释ORA-13546:ErrorencounteredduringmaintenanceofAdaptiveThresholdsCause:ErroroccurredduringOCIoperationduetounderlyingerror.Action:CheckassociatedOCIerror.Corr...

ORA-29860: cannot truncate a table with domain indexes marked LOADING

文档解释ORA-29860:cannottruncateatablewithdomainindexesmarkedLOADINGCause:ThetablehasdomainindexesdefinedonitthataremarkedLOADING.Action:WaittoseeiftheongoingindexD...

ORA-29857: domain indexes and/or secondary objects exist in the tablespace

文档解释ORA-29857:domainindexesand/orsecondaryobjectsexistinthetablespaceCause:Anattemptwasmadetodropatablespacewhichcontainssecondaryobjectsand/ordomainindexes.Act...

ORA-29864: analyzing domain indexes marked LOADING/FAILED not supported

文档解释ORA-29864:analyzingdomainindexesmarkedLOADING/FAILEDnotsupportedCause:TriedtoanalyzeadomainindexwhichwasmarkedasLOADINGorFAILED.Action:IftheindexwasmarkedLO...

ORA-13659: A directive with domain “string” and name “string” already exists for advisor string.

文档解释ORA-13659:Adirectivewithdomain“string”andname“string”alreadyexistsforadvisorstring.Cause:Thespecifieddirectiveisnotuniqueamongthedir...

ORA-14633: Index maintainence clause not allowed for ADD list subpartition to a Composite partitioned table

文档解释ORA-14633:IndexmaintainenceclausenotallowedforADDlistsubpartitiontoaCompositepartitionedtableCause:TheclauseINVALIDATEorUPDATEGLOBALINDEXESisallowedonlyforA...

ORA-29939: could not implicitly transform user-managed domain index to system-managed domain index

文档解释ORA-29939:couldnotimplicitlytransformuser-manageddomainindextosystem-manageddomainindexCause:Implicitvalidationofauser-manageddomainindexwithasystem-managed...

ORA-28047: database is not a member of any enterprise domain in OID

文档解释ORA-28047:databaseisnotamemberofanyenterprisedomaininOIDCause:AnenterpriseuserloginwasattemptedonadatabasethatisnotamemberofanyenterprisedomaininOID.Action:...
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