单项选择题
A.REUSE
B.RECYCLE
C.NO_CHANGE
D.OCCURRENCE
单项选择题 WherecanyouaddyourownPL/SQLcodeinrelation-handlingtriggers?（）
单项选择题 Theaccountingmanagerwantsyoutocreateaformthatwhenqueriedwilldisplayacalculatedtotalofyear-to-dateactualexpendituresforthefoundcodeentered.Thevaluesneededtogeneratethissummarydataarestoredinmultipletables.WhichdatasourcetypecanyouassigntothedatablockforthisformwithouthavingtheDBAcreateadatabaseobject?（）
单项选择题 YoucreatedacustommenufortheOrderEntryapplication.Theshippingadministratorhasrequestedanadditionalsubmenucontainingfouritemstoinvokevariousreports.Whichcommandtypemustyouusetoidentifytheparentmenuitemasasubmenu?（）