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

Answer: A. COUNT

Computer Science & Information Technology

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In the following statement, what is 22.0? cout << sqrt(22.0);

A) A memory location. B) A parameter. C) An argument. D) A default value. E) An l value.

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What is meant by precedence of operations?

What will be an ideal response?

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An example of a small input device connected to the motherboard PS/2 port is a(n) __________

Fill in the blank(s) with correct word

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_____ methods tend to use spiral or other iterative models.?

A. ?Object-oriented B. ?Data-driven C. ?Structured D. ?Agile

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