ocp 19c考题，科目082考试题(13)-variable prompt

13.You want to write a query that prompts for two column names and the WHERE condition each time it is executed in a session but only prompts for the table name the first time it is executed.The variables used in your query are never undefined in your session.Which query can be used?A. SELECT &&col1, &&col2FROM &table WHERE &&condition = &&cond;B. SELECT &col1, &col2FROM &&table WHERE &condition;C. SELECT &col1, &col2FROM “&table” WHERE &condition;D. SELECT ‘&&col1’, ‘&&col2’FROM &table WHERE ‘&&condition’ = ‘&cond’;E. SELECT &&col1, &&col2FROM &table WHERE &&condition;Source : cuug