Examinethelistofvariablesandtheirdatatypes:AMEDATATypeTS,TS1TIMESTAMPTSZTIMESTAMPWITHTIMEZONETLZTIMESTAMPWITHLOCALTIMEZONEIYMINTERVALYEARTOMONTHIDS,IDSIINTERVALYEARToSECONDWhichthreeexpressionsusingthenewdataandtimedatatypesarevalid?()A.IDS*2B.TS+IYMC.TS–

题目

Examinethelistofvariablesandtheirdatatypes:AMEDATATypeTS,TS1TIMESTAMPTSZTIMESTAMPWITHTIMEZONETLZTIMESTAMPWITHLOCALTIMEZONEIYMINTERVALYEARTOMONTHIDS,IDSIINTERVALYEARToSECONDWhichthreeexpressionsusingthenewdataandtimedatatypesarevalid?()

A.IDS*2

B.TS+IYM

C.TS–TSI

D.IDS–TS

E.IDS+IYM


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