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Examine the structures of the EMPLOYEES and TAX tables.EMPLOYEESEMPLOYEE_ID NUMBER NOT NUL

L, PrimaryKeyEMP_NAME VARCHAR2 (30)JOB_ID VARCHAR2 (20)SALARY NUMBERReferencesMGR_ID NUMBEREMPLOYEE_IDcolumnDEPARTMENT_ID NUMBER Foreign key toDEPARTMENT _IDcolumn of theDEPARTMENT tableTAXMIN_SALARY NUMBERMAX_SALARY NUMBERTAX_PERCENT NUMBERPercentage tax for givensalary rangeYou need to find the percentage tax applicable for each employee. Which SQL statement would you use?()

A. SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE e.salary BETWEEN t.min _ salary AND t.max_salary

B. SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE e.salary > t.min_salary, tax_percent

C. SELECT employee_id, salary, tax_percent FROM employees e, tax t WHERE MIN(e.salary) = t.min_salary AND MAX(e.salary) = t.max_salary

D. You cannot find the information because there is no common column between the two tables.

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第1题

YourdatabaseisrunningintheARCHIVELOGmode.Youplacedatablespace,tbs_1,offlinewiththeimmediateoption.Whichstatementiscorrectinthisscenario?()

A.Theoperationwouldfailiftbs_1werearead-onlytablespace.

B.Theoperationwouldfailiftbs_1werearead/writetablespace.

C.Theoperationwouldfailiftbs_1werethedefaulttablespaceforthedatabase.

D.Iftheaboveoperationweresuccessful,mediarecoverywouldberequiredtobringthetablespaceonline.

E.Iftheaboveoperationweresuccessful,instancerecoverywouldberequiredtobringthetablespaceonline.

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第2题

You want to flash back a test database by five hours.You issue this command:SQL > FLASHBACK DATABASE TO TIMESTAMP (SYSDATE - 5/24);Which two statements are true about this flashback scenario?()

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B. The database must be MOUNTED for the flashback to succeed.

C. The database must use block change tracking for the flashback to succeed.

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E. The database must be opened with the RESETLOGS option after the flashback is complete.

F. The database must be opened in read-only mode to check if the database has been flashed back to the correct SCN.

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第3题

TheADMIN_EMPtablehascolumnsEMPNO,ENAME,DEPTNO,andSAL.IthasamaterializedviewEMP_MVwithamate

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A.Thematerializedviewshouldhaveacompleterefreshperformedaftertheonlinetableredefinitioniscompleted.

B.Thematerializedviewshouldhaveafastrefreshperformedaftertheonlinetableredefinitioniscompleted.

C.Thematerializedview,materializedlog,andtheindexshouldbedroppedandre-createdaftertheonlinetableredefinitioniscomplete.

D.Thematerializedviewandmaterializedlogshouldbedroppedandallconstraintsdisabledandre-createdaftertheonlinetableredefinitioniscomplete.

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第4题

YouenabledAutomaticSharedMemoryManagement.Theinitializationparametersaresetasshownbelow:SG

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第5题

Inyourdatabase,youmaybeforcedtoperformarecoveryusingtheRESETLOGSoptionduringwhichtheredolo

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A.%t_%s.dbf

B.arch_%t.arc

C.arch_%d.arc

D.arch_%t_%d.arc

E.arch_%d_%s_.dbf

F.arch_%t_%s_%r.arc

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第6题

YouissuedthefollowingcommandtomounttheDATAdiskgroupinrestrictedmode:ALTERDISKGROUPdataMOUNTRESTRICT;Whatistheimplicationofthiscommand?()

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第7题

Examine these two statements:Which three are true about the MRKT tablespace?()

A. The MRKT tablespace is created as a small file tablespace, because the file size is less than the minimum required for big file files.

B. The MRKT tablespace may be dropped if it has no contents.

C. Users who were using the old default tablespace will have their default tablespaces changed to the MRKT tablespace.

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第8题

WhichfouractionscanyouperformusingtheWebLogicAdminConsole?()

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第9题

In your database, you want to ensure that idle sessions that are blocking active are automatically terminated after a specified period of time.How would you accomplish this?()

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第10题

The STUDENT_GRADES table has these columns:The registrar has asked for a report on the ave

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A.

B.

C.

D.

E.

F.

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