When constructing references, the reference should be of the same data type as the ____________________ to which it refers.
Fill in the blank(s) with the appropriate word(s).
variable
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Match each item with the correct statement below.
A. The paragraphs of a memo or letter B. Formal closing at the end of a business letter C. Notation keyed at the end of a letter indicating to whom copies will be sent D. E. Notation keyed at the end of a letter reminding the reader that something is enclosed with the letter F. Stationery that includes the company name, address, telephone number, and other optional information printed at the top G. Lowercase typist initials keyed at the end of a letter or memo H. Greeting in a letter, usually consisting of person's title and last name I. J. Begins two lines below the complimentary closing
A(n) ____________________ is a table row that contains data about an object, person, or other type of item.
Fill in the blank(s) with the appropriate word(s).
In ____ programming, various facts are asserted to be true, and on the basis of these facts, a program can infer or deduce other facts.
logic constant constructive computational
Which of the following commands is used to count the number of rows and non-NULL values in Oracle database?
A. COUNT B. NOT NULL C. INSTR D. SUBSTR