One way to drop database objects in a script without throwing errors and cancelling the script if the objects don't exist is to
A. use a PL/SQL block to drop the objects
B. use a PL/SQL block to drop the objects and use an IF statement to handle any errors that are thrown
C. use a PL/SQL block to drop the objects and ignore any exceptions
D. use a PL/SQL block to drop the objects and use a CASE structure to handle any errors that are thrown
Answer: C. use a PL/SQL block to drop the objects and ignore any exceptions
Computer Science & Information Technology
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As shown in the accompanying figure, the ____ element is a block-level element that adds white space above and below.
A. subhead B. comment C. paragraph D. narrative
Computer Science & Information Technology
Mnemonics can be used with all subclasses of which class?
a. AbstractButton. b. JMenu. c. JMenuItem d. JComponent.
Computer Science & Information Technology