单项选择题
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?（）
单项选择题 Youestablishedaccesstomenumodulesusingroles.Youhaveallowedthesalesroletoaccessthemenumodule,butpreventedaccesstotheUpdatemenuitem.Whichitempropertywouldyoualtertograyoutthemenuoptionfortherole?（）
单项选择题 Youwanttoimplementamaster-detailrelationbetweendatablocksbasedonobjecttables.Howwouldyoudothis?（）