78、ViewtheexhibitandexaminethestructureoftheCUSTOMERStable.Whichtwotaskswouldrequiresubqueriesorjoinstobeexecutedinasinglestatement?A.findingthenumberofcustomers,ineachcity,whosecreditlimitismorethant
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其他好文 时间:
2019-03-18 11:42:05
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180
77、Which two statements are true about sequences created in a single instance database? (Choose two.) A. When the MAXVALUElimit for the sequence is re ...
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2019-03-18 10:21:12
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161
76、ViewtheexhibitandexaminethedescriptionoftheDEPARTMENTSandEMPLOYEEStables.TheretrievedataforalltheemployeesfortheirEMPLOYEE_ID,FIRST_NAME,andDEPARTMENTNAME,thefollowingSQLstatementwaswritten:SELECTe
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2019-03-11 17:34:05
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283
75、Whichstatementsarecorrectregardingindexes?(Chooseallthatapply.)A.Anon-deferrablePRIMARYKEYorUNIQUEKEYconstraintinatableautomaticallyattemptstocreatesauniqueindex.B.Indexesshouldbecreatedoncolumnsth
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2019-03-11 14:59:39
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228
74、View the exhibit and examine the structure of ORDERS and CUSTOMERS tables. ORDERS Name Null? Type ORDER_ID NOT NULL NUMBER(4) ORDER_DATE NOT NULL D ...
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2019-03-11 13:15:55
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167
74、ViewtheexhibitandexaminethestructureofORDERSandCUSTOMERStables.ORDERSNameNull?TypeORDER_IDNOTNULLNUMBER(4)ORDER_DATENOTNULLDATEORDER_MODEVARCHAR2(8)CUSTOMER_IDNOTNULLNUMBER(6)ORDER_TOTALNUMBER(8,2)
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2019-03-11 13:05:19
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151
73、Whichstatementcorrectlygrantsasystemprivilege?A.GRANTCREATEVIEWONtable1TOuser1;B.GRANTALTERTABLETOPUBLIC;C.GRANTCREATETABLETOuser1,user2;D.GRANTCREATESESSIONTOALL;CorrectAnswer:CSection:(none)Expla
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2019-03-11 11:55:28
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224
72、ViewtheexhibitforthestructureoftheSTUDENTandFACULTYtables.STUDENTNameNull?TypeSTUDENT_IDNOTNULLNUMBER(2)STUDENT_NAMEVARCHAR2(20)FACULTY_IDVARCHAR2(2)LOCATION_IDNUMBER(2)FACULTYNameNull?TypeFACULTY_
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2019-03-08 13:59:12
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203
71、(32-18)choosethreeWhichthreestatementsindicatetheendofatransaction?(Choosethree.)A)afteraCREATEstatementisissuedB)afteraSELECTstatementisissuedC)afteraROLLBACKisissuedD)afteraSAVEPOINTisissuedE)aft
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2019-03-08 12:45:30
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167
69、(31-1)choosethebestanswer:Evaluatethefollowingquery:SELECTINTERVAL‘300‘MONTH,INTERVAL‘54-2‘YEARTOMONTH,INTERVAL‘11:12:10.1234567‘HOURTOSECONDFROMdual;Whatisthecorrectoutputo
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其他好文 时间:
2019-03-08 11:18:36
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155