« previous next »

Author Question: The word key indicates a field or fields whose value uniquely or nonuniquely identifies a record or ... (Read 134 times)

penguins

  • Hero Member
  • *****
  • Posts: 903
on: Jul 7, 2018
The word key indicates a field or fields whose value uniquely or nonuniquely identifies a record or set of records.
 
  Indicate whether the statement is true or false

Question 2

A null value in a column may indicate that there is an appropriate value for that attribute, and although the value is known, no one has entered the value into the database.
 
  Indicate whether the statement is true or false


honnalora

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 7, 2018
Answer to Question 1

TRUE

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Preparation of sterile field 1 Preparation of sterile field 1
Monkeys and apes such as this chimpanzee can be recognized in the fossil record by the anatomy of th Monkeys and apes such as this chimpanzee can be recognized in the fossil record by the anatomy of th
The first step in field recovery involves surveying the site, sometimes with special equipment. The first step in field recovery involves surveying the site, sometimes with special equipment.
How to solve simple percent word problems (Part 1) How to solve simple percent word problems (Part 1)
Word Problems Algebra Questions Help pls Word Problems Algebra Questions Help pls
Opener A field of pumpkins, where size is under the influence of additive alleles Opener A field of pumpkins, where size is under the influence of additive alleles
Video: How proteins function? How do proteins work?

For a complete list of videos, visit our video library