Oracle?? ???? ???? ??
oracledatapump (expdp) createSabinary.dmpfileforfulltableExport, bestforbackupsandoracle-to-oracleMidport, idexpdpcommand.2.sql*plusspoolgenerates-ReadableCstontOptingOptingTingTingTingtingTingtingtiet
Aug 14, 2025 pm 06:36 PM
Oracle?? ???? ?? ??? ?? ??
querydba_objects, all_objects, oruser_objectStofindInvalidObjectsByCheckingStatus = 'invalid', ??? viewSbasedonPrivileges.2.optionallyFilterresultSbySpecificObjectTypes -likepackage,??,??, orproceduretofocusoncrit invalidBa _dba_dba _dba_dba _devecticalinvalidba
Aug 14, 2025 pm 06:34 PM
Oracle?? ?? SQL ?? ?? ??
Oracle?? ?? ?? ??? ??? ?? SQL ?? ???? ?? V $ SQLAREA View? ???? ?? ??? ?? ?? ?? ??? ?? AWR ?? ???? ???????. 1. v $ sql? ???? ??, CPU, ??? ?? ? ?? ?? ?? ??? ???? ??? ?? ?? SQL? ?????. 2. v $ sqlarea? ???? ? ??? ?? ? ? ?? ??? ?? ? ??? ???? ??? ?? ???? ? ??? ?????. 3. ?? DBA_HIST_SQLSTAT ? DBA_HIST_SNAPSHOT ? CPU ??, ?? 7 ? ??? ? ?? ??? ?? ??? ?? ???? ?????; 4. ????? OEM ?? SQLDEVENVENCER ??? ??? ???? TOPSQL??? ?? ? ? ????.
Aug 14, 2025 pm 03:44 PM
ORA-01034 ?? ?? ?? : Oracle? ??? ? ????
?? Oracle ????? ?? ??? ??????. PMON ???? (Linux/UNIX) ?? ??? ?? (Windows)? ???? ???? ??? ????? ???????. 2. ?? ?? ??? ?? ??? ??? ??? ?? Oracle_SID ? Oracle_Home ?? ??? ???? ???? ??? ??????. 3. SQLPLUS/ASSYSDBA? ???? ????? ?? ??? ???? ??????? ???? ??? ?? ?? ??? ??????. 4. Alert Log ?? ($ Oracle_Base/Diag/RDBMS /// TRACE/ALERT_.LOG? ??)? ????? ?? ?? ?? ? ?? ? ??? ??? ??? ?? ??? ?? ?? ??? ?????.
Aug 14, 2025 pm 01:12 PM
Oracle ??????? ???? ???? ??
??????? ????? SQLPLUS/ASSYSDBA? SYSDBA ???? ????????. 2. ??? ???? ??? ???? ?? ????? ???? ???? Shutdownimmediate? ?? ??????? ???? ?? ????. 3. Startup ??? ???? ??????? ??????. Startup ??? ???? Nomount, Mount ? Open Stages? ???? ????? StartUpmount ?? StartUpugrade? ??? ?? ?????. 4. ?? ? ?????? ??? SelectStatusFromv $ instance ? selectOpen_Modefromv $ ??????? ?? OPE?? ??????.
Aug 13, 2025 am 08:41 AM
Oracle???? ??? ???? ???? ??????
aviewdoesnotstoredataphysicallyandexecutestestestestestesteceatheachiptorestorestorestorestorestorestorestaphysicaltable.2.materializedviewsgenerallyffereferforperformanceBecaUsEtheEyCessPrecutedData, whereasveslowe
Aug 13, 2025 am 08:29 AM
ORA-12541 ?? ?? ?? : TNS : ??? ??
??, ?????? ??? ???? ?????? ????, lsnrctlstatus? ???? ?? ?? ???? ????, lsnrctlstart? ?????; 2. ???. ORA ?? ??? ??? ? ?? ??? ???? ???? LocalHost ??? ?? ?? ?? ? ???? ?? ??????. 3. Netstat ?? LSOF ??? ???? ???? ??? ?? (? : 1521)?? ?? ??? ??????. ?????? Telnet ?? NC? ?? ?? ??? ??? ? ? ????. 4. ?? ? ???? ???? ?? ?? ??? ???? Linux ???? ??? ?? iptables? ?????? Windows? ????? ????????.
Aug 13, 2025 am 01:10 AM
Oracle?? ???? ??? ???
CreateSequence ?? ???? ?? ?? ??? ?? ?? ???? ?? ? ?? ???? ? ???? ???? ??????. 2. ???? ??? STARTWITH, DECREMENTBY, MAXVALUE/MINVALUE, CYCLE/NOCYCLE ? CACHE/NOCACHE; 3. NextVal? ?? ?? ?? ??? Curval? ?? ?? ????. 4. ??? ?? ???? ?? ?? ???? ?? ? ? ????. 5. ??? ?? ? ??? ???? ?? ??? ??? ?? ????. ???? ???? ?? ??? ?? ???? ????. 6. DROPECESENCE? ???? ? ?? ???? ?? ?? ???? ??????.
Aug 13, 2025 am 12:20 AM
Oracle? ???? ??????
Oracle Sequence? ?? ?? ? ?? ??? ???? ?? ? ??? ???? ? ???? ?????? ?????. ?? ????? NextVal? ?? ?? ?? ?? ????. Curval? ?? ?? ?? ????. ???? ???? 1 ? ? ??, ?? ??? ? ?? ??? ?????. ?? ? ? CreateSequence ?? ???? startwith, ycrementby, maxValue, minValue, Cycle ? Cache? ?? ?? ??? ??????. ??? ???? ??? ??? ?? ???? ???? SQL ??? ????? ????. ??, ?? ?? ???? ?? ?? ??? ??? ? ?? ??? ???? ????? ?? ???? ????. ? NextVal ??? ??? ?? ???? ??? ??? ?? ???? ?? ? ? ????.
Aug 12, 2025 am 08:30 AM
Oracle?? RMAN? ??????? ???? ??
StartTheDatabaseInnomountModeUsingstartUpnomountInrman, 2.RestorEtheControlfileFromUporaUtoBackUpusingRestoreControlfile, thendatabasewithalterdatabasemount;
Aug 12, 2025 am 06:07 AM
Oracle ???????? ??? ??? ???? ??
Oracle ??????? ??? ??? ????? ???? ???? ?? ???? (? : ???, LOB)? ???????. ?? ??? ??? user_segments ?? dba_segments??? ???? ????. 1. ??? _segments? ???? ?? ???? ? ??? ??????. selectsegment_nameastable_name, round (sum (bytes)/1024/1024,2) assize_mbfromuser_segmentswheresment_name = 'your_table_name'groupbysemgent_name; 2.
Aug 12, 2025 am 06:05 AM
Oracle Security? ??? ?? ? ?? ???? ??????
SystemPrivileGesandObjectPrivilegesinorAcleservedifferentpures.1.SystemPrivileGesgrantBroad, ??????-??? MissionSlikeCreatingSessionsOrtables.2.objectPrivilegesArespecifictoInduidualDatabaseObjectSsuChassElectOnaCeaintable.3.systemileges
Aug 12, 2025 am 03:36 AM
Oracle? Varchar2? Char? ???? ??????
SpacestOfillTheDefinedLength? whiled-lengthandpadswithpacestofillTheDefinedLength, whilevarchar2isvariable-lengthernyusesspaceneed.2.varchar2ismorestorage-efficientforvarying-lengthdata, asitdoesnotpad.3
Aug 11, 2025 pm 11:00 PM
Oracle?? ??? ?? ??? ???? ??
useExplainplanfortogenerateAnestimateExecutionPlanwithoutthequpery, theQueryDbms_xplan.displayToviewItItInReadableFormat.2.enableAutotraceInsql*pluseRSQLDeveloperWithSetOutraceOntoTeEBotheBotheXecutionStatistatistictistictistictististictististicitionsUctucution.
Aug 11, 2025 pm 04:37 PM
?? ??
Undress AI Tool
??? ???? ??
Undresser.AI Undress
???? ?? ??? ??? ?? AI ?? ?
AI Clothes Remover
???? ?? ???? ??? AI ?????.
Stock Market GPT
? ??? ??? ?? AI ?? ?? ??
?? ??
??? ??
vc9-vc14(32+64??) ??? ????? ??(?? ??)
phpStudy ??? ??? ??? ????? ??? ???????.
VC9 32??
VC9 32?? phpstudy ?? ?? ?? ??? ?????
PHP ????? ?? ?? ?? ??
Programmer Toolbox v1.0 PHP ?? ??
VC11 32??
VC11 32?? phpstudy ?? ?? ?? ??? ?????
SublimeText3 ??? ??
??? ??, ???? ?? ????.
