You write a procedure that will be called from two level triggers and a database trigger. Where should you store this code? （）

单项选择题IntheCOURSE_ENROLLMENTformmodule,youdefineamaster-detailrelationbetweentheCOURSES_OFFEREDdatablockandtheSTUDENTdatablock,respectively.Toimplementblockcoordination,whichstatementmustbetrue?（）

A. The Enforce Primary Key property on the STUDENT block is set to Yes. 
B. The Alias property on the COURSES_OFFERED block is set to Student. 
C. The Copy Value from item property on the foreign key item in the STUDENT blocks is set to the primary key item of the COURSES_OFFERED block. 
D. The Synchronize with item property on the foreign key item in the STUDENT block is set to the primary key item of the COURSES_OFFERED block.

单项选择题WhichdatatypeisreturnedbytheFIND_MENU_ITEMbuilt-infunction?（）

A.number 
B.Boolean 
C.menuitem 
D.VARCHAR2 

单项选择题WhichisanexampleofadynamicSELECTstatement?（）

A.A query whose object names change during its execution. 
B.A query whose object names are not known until run time. 
C.A query whose bind variables values change during execution. 
D.A query whose bind variable values are not known until run time.

单项选择题Youcreateamaster-detailform.Theusersneedtobeabletoexittheformquickly,adheringtodefaulttransactionprocessing,regardlessofthecursorlocation.YoubelieveyoucanachievethisusingaKey-Exittrigger.Whatdoyouneedtodotoimplementthisrequest?（）

A.Define a Key-Exit trigger for all the blocks in the form.  
B.In the Object Navigator, highlight all the items and define a Key-Exit trigger. 
C.Define a Key-Exit trigger on the primary key item in the master block.
D.No additional key-trigger definition is necessary.

单项选择题Thetelesalesforcerequestedadditionalwaystoterminatetheautomatedpollingquestionnaire.Inadditiontothedefaultfunctionality,youprovideamenuitemandabuttonforthispurpose.Adheringtoefficientcodingpractices,whichPL SQLcodedoyouuseforthemenuitemandthebutton?（）

A.EXIT 
B.EXIT_FORM 
C.DO_KEY('Key-Exit') 
D.DO_KEY('EXIT_FORM')