A(n) _____ is a collection of instructions and commands used to define and describe data and relationships in a specific database.
Fill in the blank(s) with the appropriate word(s).
data definition language (DDL)
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A(n) ________ is a message sent automatically to an email sender to let him or her know the email was received
A) automatic reply B) delivery receipt C) meeting request D) read receipt
?Which of the following is a guideline for the design of data entry screens that are easy to learn and use?
A. ?Restrict user access to screen locations where data is entered. B. ?Provide a descriptive caption for every field. C. ?Require users to type leading zeroes for numeric fields. D. ?Display a default value when a field value will be constant for successive records.
A single post on Twitter is known as a(n) __________.
Fill in the blank(s) with the appropriate word(s).
The ________ contains the central electronic components of the computer.
A. motherboard B. arithmetic/logic unit C. peripheral unit D. input unit