单项选择题
You create a package that contains PL/SQL variables that must be shared among several forms in the Travel application. You place the package in a library and attach the library to all the forms that need to share the data. Which parameter in the OPEN_FORM built-in must you set to ensure that changes made by one form are visible to the other forms in the application?（）
A.data_mode B.paramlist C.query_mode D.session_mode
多项选择题 Whichthreeobjectscanbecomponentsofamenumodule?（）
单项选择题 YoucreateadatablockbasedonarelationtablecontainingaREFcolumn.YouselecttheREFcolumnforyourformmodule.WhichstatementabouttheREFcolumnistrue?（）
单项选择题 WhichvalueisvalidfortheiterateparameterinSET_TIMERbuilt-inprocedure?（）
