Discuss why schema control may be a useful facility for some applications.

What will be an ideal response?


Engineering design is an incremental process and evolves with time. To support this process,
applications require considerable flexibility in dynamically defining and modifying the database
schema. For example, it should be possible to modify class definitions, the inheritance structure,
and specifications of attributes and methods without requiring system shutdown.

Computer Science & Information Technology

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Encapsulation means ______________.

a. that data fields should be declared private b. that a class can extend another class c. that a variable of supertype can refer to a subtype object d. that a class can contain another class

Computer Science & Information Technology

The import data options are located on the ________ tab

Fill in the blank(s) with correct word

Computer Science & Information Technology

Excel's ________ tool can be used to compare several possible solutions to a problem

Fill in the blank(s) with correct word

Computer Science & Information Technology

What event occurs when the user clicks the mouse within the Control's boundaries?

A. MouseClick B. MouseEnter C. MouseHover D. MouseLeave

Computer Science & Information Technology