User SCOTT wants to back out the transactions on the REGIONS table in his schema. As a DBA, whichcommands must you execute to enable SCOTT to flash back the transactions? ()(Choose four.)A. ALTER DATABASE FLASHBACK ON;B. GRANT SELECT any transaction TO sc

题目
User SCOTT wants to back out the transactions on the REGIONS table in his schema. As a DBA, whichcommands must you execute to enable SCOTT to flash back the transactions? ()(Choose four.)

A. ALTER DATABASE FLASHBACK ON;

B. GRANT SELECT any transaction TO scott;

C. GRANT EXECUTE ON dbms_flashback TO scott;

D. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA;

E. ALTER TABLESPACE undots1 RETENTION GUARANTEE;

F. ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY) COLUMNS;

相似考题

1.Susan was determined to become a doctor and her persistence paid _______.(A) back(B) for(C) off(D) out

2.He developed computer software to handle complicated______(finance) transactions.

3.You'd better tell him what to do next as soon as he _______ back.A：comeB：cameC：is comingD：comes

4.In the ORACLE system, sets of SQL statements and control flow statements that have been named, compiled ,and stored in database are referred to as storedA．batchesB．proceduresC．triggersD．transactions

参考答案和解析
参考答案：B, C, D, F
更多“User SCOTT wants to back out the transactions on the REGIONS table in his schema. As a DBA, whichcommands must you execute to enable SCOTT to flash back the transactions? ()(Choose four.) ”相关问题

  • 第1题：

    YousettheundopoolresourceplandirectivefortheconsumergroupnamedDSS_USERSthatisassignedtotheDAY_SHIFTplan.Thedatabaseusers，SCOTTandBLAKE，belongtotheDSS_USERSresourcegroup.Theuser，SCOTT，initiatesadatabasesessionandexecutesabatchoperationthatinsertsmillionsofrowsintotheHISTORYtable.WhichtwooptionsaretrueifthetotalundospaceallocatedtotheDSS_USERSgroupexceedsthevaluespecifiedintheundopoolresourceplandirective？（）

    A.Thebatchoperationstartedbytheuser，SCOTT，terminateswithanerror.

    B.Thebatchoperationstartedbytheuser，SCOTT，hangsandyouarerequiredtoincreasetheundopoolresourceplandirective.

    C.Thebatchoperationstartedbytheuser，SCOTT，runsuninterruptedbecausethedatabaseusestheSYSTEMtablespacefortheundooperation.

    D.Theuser，BLAKE，cannotstartatransactionthatusesanyDMLoperationsuntilyouincreasethevalueoftheundopoolresourceplandirective.

    E.TheuserBLAKEcanstartatransactionthatusesanyDMLoperationsafterthebatchoperationstartedbytheuser，SCOTT，terminateswithanerror.


    参考答案：A, D

  • 第2题：

    Youissuethefollowingcode:EXECDBMS_RESOURCE_MANAGER_PRIVS.GRANT_SWITCH_CONSUMER_GROUP(’SCOTT’’GRP1’,TRUE);Whatwillbetheresultofexecutingtheabovecode?()

    A.Theswitchprivilegewillbegrantedtotheuser，Scott，forchangingtheconsumergrouptoGRP1.

    B.Theswitchprivilegewillbegrantedtotheuser，Scott，forchangingtheconsumergroupfromGRP1toanyothergroup.

    C.ThecodewillnotexecutesuccessfullybecausethereisnoGRANT_SWITCH_CONSUMER_GROUPprocedureintheDBMS_RESOURCE_MANAGER_PRIVSpackage.

    D.Thecodewillexecutesuccessfullybutnoprivilegewillbegrantedtotheuser，Scott.


    参考答案：A

  • 第3题：

    Make（ ）copies of important files, and store them on separate locations to protect your information.

    A.back B.back-up C.back-out D.background


    正确答案：B

  • 第4题：

    Youwanttoenabletheuser，Scott，tochangetotheGRP1consumergroupbyissuingthefollowingcode：SQL>EXECDBMS_SESSION.SWITCH_CURRENT_CONSUMER_GROUP（’SCOTT’，’GRP1’，FALSE）；Howwillyougranttheswitchprivilegetotheuser，Scott？（）

    A.byusingtheDBMS_SESSIONpackage

    B.bygrantingtheDBArole

    C.byusingtheDBMS_RESOURCE_MANAGERpackage

    D.byusingtheDBMS_RESOURCE_MANAGER_PRIVSpackage


    参考答案：D

  • 第5题：

    WhatwillbetheresultofusingtheSQL>DROPUSERSCOTTCASCADE;command?()

    A.Theuser，Scott，isdropped，alltheobjectsinScott’sschemaareplacedintheRecycleBin，andtheobjectsthatarealreadyintheRecycleBinaredropped.

    B.Theuser，Scott，isdropped，alltheobjectsinScott’sschemaareplacedintheRecycleBin，andalltheobjectsintheRecycleBin，belongingtotheuserScott，arenotdropped.

    C.Theuser，Scott，isdropped，alltheobjectsintheScott’sschemaarenotplacedintheRecycleBin，andtheobjectsintheRecycleBin，belongingtotheuser，Scott，arenotdropped.

    D.Theuser，Scott，isdropped，alltheobjectsinScott’sschemaarenotplacedintheRecycleBin，andtheobjectsintheRecycleBinaredropped.


    参考答案：D

  • 第6题：

    4.检索和名叫SCOTT的员工相同工资的员工信息，但不显示SCOTT。显示字段：员工号、员工名、工资。


    select empno,ename,sal from emp where sal =(select sal from emp where ename='SCOTT') and ename!='SCOTT'。

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