單項(xiàng)選擇題

Which technique retrieves the error number when explicit DML fails?（）

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.

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單項(xiàng)選擇題

You create a data block based on a relational table containing a REF column. You select the REF column for your form module. What is true about the items based on the REF column attributes?（）

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.

單項(xiàng)選擇題

You established access to menu modules using roles. You have allowed the sales role to access the menu module, but prevented access to the Update menu item. Which item property would you alter to gray out the menu option for the role?（）

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