From an SQL user’s perspective, does the relational model provide logical and physical data independence?
What will be an ideal response?
Since a user can define views, logical data independence can be achieved by using view definitions
to hide changes in the conceptual schema. Since the SQL user has no knowledge of how the data is
physically represented, relying solely on the relation abstraction for querying, physical data
independence is also achieved.
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What is the usefulness of conventions for Web users?
What will be an ideal response?
To select an entire chart, you click ________
A) the center of the chart B) the chart border C) the chart title D) anywhere in the chart area
In the Flash Player window, you can click the Ctrl+____ keys to run the Simulate Download command.
A. Enter B. F2 C. F4 D. Shift
The 1 in the expression *(gPtr + 1) is a(n) ____.
A. word B. byte C. offset D. scale