多項(xiàng)選擇題

You want to make use of the object features available in the database for the form module you are developing. Which three statements about object types are true? （）

A.An object type is a user-defined composite data type.
B.The attributes of an object type can be those of other object types.
C.A PL/SQL table of records is an example of a nested object type.
D.An object type must be declared as a type before the actual object itself can be declared.

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單項(xiàng)選擇題

You have written a custom menu for a Forms application. You saved the menu module to the file custmenu.mmb. In the Property Palette for the form, you set the Menu Module property to custmenu. When you run the form, the custom menu does not appear. What can you do to fix this problem?（）

A.Generate the menu module executable.
B.Save the menu module as custmenu.mmx.
C.In the Property Sheet for the form, set the Starting Menu property to custmenu.
D.In the Property Sheet for the form, set the Menu Module property to custmenu.mmb.

單項(xiàng)選擇題

What is the data type returned by the CREATE_TIMER built-in?（）

A.long
B.timer
C.number
D.varchar2

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You want to make use of the object features available in the database for the form module you are developing. Which three statements about object types are true? （）

你可能感興趣的試題

You have written a custom menu for a Forms application. You saved the menu module to the file custmenu.mmb. In the Property Palette for the form, you set the Menu Module property to custmenu. When you run the form, the custom menu does not appear. What can you do to fix this problem?（）

What is the data type returned by the CREATE_TIMER built-in?（）

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