Corn originated in the New World and thus was not known in Europe until Columbus found it_

A.A

B.B

C.C

D.D

sopen.YouhaveneitherabackupofthelostindextablespacenorthescriptscontainingtheCREATEINDEXstatementstorecreatetheindexes.Currently，severalusersareexecutinglong-runningqueriesonthedatabase.Whatwillhappentotheongoingactivityinthedatabase？（）

A.Thequeriesthatarecurrentlyexecutingwillabortandanerrormessagewillbereturnedtotheuser.

B.Thequeriesthatarecurrentlyexecutingwillexecutenormallybutfuturequerieswillnotexecuted.

C.DataManipulationLanguage（DML）statementscannotbeperformedonthetablesonwhichtheindexesarebased.

D.Thecurrentlyexecutingandfuturequerieswillexecutenormally，butwillbeslower

A.STOP SLAVE; SET GLOBAL SQL_SLAVE_SKIP_COUNTER=1; START SLAVE

B.STOP SLAVE; BEGIN; SET GTID_IGNORE="aaa-bbb-ccc-ddd-eee: 3"; COMMIT; START SLAVE

C.STOP SLAVE; SETGTID_NEXT="aaa-bbb-ccc-ddd-eee: 3"; BEGIN; COMMIT; SET GTID_NEXT="AUTOMATIC"; START SLAVE

D.STOP SLAVE; RESET SLAVE; BEGIN; SKIP NEXT GTID; COMMIT; START SLAVE

A.byusingtheFlashbackDatabasefeature

B.byusingRMANincompleterecovery

C.byperformingauser-managedincompleterecovery

D.bydroppingandre-creatingtheindextablespace

A.Adifferentprocedureisrequiredtorestoreadatabasefromcompressedbackups

B.TheASCOMPRESSEDclauseoftheBACKUPcommandprovidedbyRMANisusedtocreatecompressedbackupsetsandimagecopies.

C.Usingthiscommandtocreatebackupsminimizesthebandwidthconsumed.

D.Usingthiscommandtocreatebackupsimprovestheperformanceofthebackupprocess

A.IftheREMOTE_LOGIN_PASSWORDFILEparameterissettoSHAREDintheinitializationparameterfile，thenamaximumofthreeuserscanbegrantedtheSYSDBAorSYSOPERprivileges.

B.IftheREMOTE_LOGIN_PASSWORDFILEparameterissettoEXCLUSIVEintheinitializationparameterfile，thenamaximumofthreeuserscanbegrantedtheSYSDBAorSYSOPERprivileges.

C.IftheREMOTE_LOGIN_PASSWORDFILEparameterissettoSHAREDintheinitializationparameterfile，thentheSYSDBAandSYSOPERprivilegescanbegrantedtootherusersaslongasspaceinthepasswordfileis

D.IftheREMOTE_LOGIN_PASSWORDFILEparameterissettoEXCLUSIVEintheinitializationparameterfile，thentheSYSDBAandSYSOPERprivilegescanbegrantedtootherusersaslongasspaceinthepasswordfileisavailable.

ned by the employee.Which three tasks would require subqueries or joins in order to perform in a single step?（）

A. Deleting the records of employees who do not earn commission.

B. Increasing the commission of employee 3 by the average commission earned in department 20.

C. Finding the number of employees who do NOT earn commission and are working for department 20.

D. Inserting into the table a new employee 10 who works for department 20 and earns a commission that is equal to the commission earned by employee 3.

E. Creating a table called COMMISSION that has the same structure and data as the columns EMP_ID and COMMISSIONS of the EMP table.

F. Decreasing the commission by 150 for the employees who are working in department 30 and earning a commission of more then 800.

A.ADatabaseProduct

B.AMiddlewareProduct

C.AnObjectRelationalMapping(ORM)Tool

D.ASoftLoadBalancer

E.AnApplicationProduct

AdamisworkingasaDatabaseAdministrator（DBA）forTeleSoftCorporation.HisdatabaseisrunningintheARCHIVELOGmode.Duringdatabasestartup，hediscoversthatoneofthediskscrashed，resultinginthepermanentlossofaread-writeUSERStablespace.TheUSERS01.dbfdatafilebelongstotheUSERStablespaceandis500MBinsize.HeneedstorecovertheUSERStablespacefromthebackup.Whilereviewingthebackupdetails，hediscoversthatthemostrecentavailablebackupisfivedaysold.ThisbackupwastakenwhentheUSERStablespacewasread-only.Aftercorrectingthehardwareproblemthatcausedthefailure，whatshouldAdamdotorecovertheUSERStablespace？（）

A.smpatch

B.Patchtool

C.Updatemanager

D.Patchmanager