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.
Computer Science & Information Technology
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Suppose a function foo, with no parameters, needs to return an object (or variable) of DataType by reference. The function prototype for foo would look like this:
A. inline DataType foo( ); B. DataType & foo( ); C. DataType foo( ) &; D. inline DataType foo( ) &;
Computer Science & Information Technology
In the acronym HTTPS, the S stands for ________.
Fill in the blank(s) with the appropriate word(s).
Computer Science & Information Technology