What is not true about data types?
A. It is best to choose Short Text for all fields at first, because they can easily be changed later.
B. Every field is assigned a data type.
C. They determine what operations can be performed on the data.
D. They can be changed after the table has been created.
Answer: A
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The word top in the term top-down stepwise refinement refers to which of the following?
a) the first statement that appears in the program b) the first statement that appears in the algorithm c) the single statement that d) the entire algorithm
In an XQuery file, the _____ is an optional section that is placed at the beginning of the query and is used to set up fundamental properties of the query.
Fill in the blank(s) with the appropriate word(s).
Give an example of a transaction program that contains a cursor, such that the value returned by one of its FETCH statements depends on whether or not the cursor was de?ned to be INSENSITIVE. Assume that this transaction is the only one executing. We are not concerned about any e?ect that a concurrently executing transaction might have.
What will be an ideal response?
A more efficient design which involves the logical separation of a switch ports into different broadcast domains is known as a ________
A) subnet B) collision domain C) virtual local-area network (VLAN) D) LAN