Which built-in do you use to determine which timer in form module has expired?（）

单项选择题Whichbuilt-inreturnsaBOOLEANvaluethatindicatedwhetheranobjectsinternalIDisavailable?（）

A.GET_ID 
B.ID_NULL 
C.ID_FIND 
D.FIND_ID

多项选择题Whichtwobuilt-inswouldyouusetoremovetheHOUR_ALARMtimerusingthetimer_idparameter?（）

A.FIND_TIMER 
B.CREATE_TIMER 
C.SET_TIMER 
D.DELETE_TIMER 
E.GET_APPLICATION_PROPERTY

单项选择题WhichtechniqueretrievestheerrornumberwhenexplicitDMLfails?（）

A.SQLCODE in an On-Error trigger. 
B.SQLCODE in an exception handler. 
C.DBMS_ERROR_CODE in an On-Error trigger. 
D.DBMS_ERROR_CODE in an exception handler. 

单项选择题YoucreateadatablockbasedonarelationaltablecontainingaREFcolumn.YouselecttheREFcolumnforyourformmodule.WhatistrueabouttheitemsbasedontheREFcolumnattributes?（）

A.The Query Only property is set to Yes. 
B.The Conceal Data property is set to Yes. 
C.The Insert Allowed property is set to Yes. 
D.The Update Allowed property is set to Yes.

单项选择题Youestablishedaccesstomenumodulesusingroles.Youhaveallowedthesalesroletoaccessthemenumodule,butpreventedaccesstotheUpdatemenuitem.Whichitempropertywouldyoualtertograyoutthemenuoptionfortherole?（）

A.Item Roles. 
B.Menu Item Roles. 
C.Display without Privilege. 
D.Use Security. 
E.Command Type.