单项选择题
A.number
B.Boolean
C.menuitem
D.VARCHAR2
单项选择题 WhichisanexampleofadynamicSELECTstatement?（）
单项选择题 Youcreateamaster-detailform.Theusersneedtobeabletoexittheformquickly,adheringtodefaulttransactionprocessing,regardlessofthecursorlocation.YoubelieveyoucanachievethisusingaKey-Exittrigger.Whatdoyouneedtodotoimplementthisrequest?（）
单项选择题 Thetelesalesforcerequestedadditionalwaystoterminatetheautomatedpollingquestionnaire.Inadditiontothedefaultfunctionality,youprovideamenuitemandabuttonforthispurpose.Adheringtoefficientcodingpractices,whichPL/SQLcodedoyouuseforthemenuitemandthebutton?（）