This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: On a state diagram, an event is something that takes place at a certain point in time. Indicate ... (Read 72 times)

pragya sharda

  • Hero Member
  • *****
  • Posts: 566
on: Jul 7, 2018
On a state diagram, an event is something that takes place at a certain point in time.
 
  Indicate whether the statement is true or false

Question 2

An attribute that appears as a nonkey attribute in one relation and as a primary key attribute (or part of a primary key) in another relation is a:
 
  A) foreign key.
  B) candidate key.
  C) pointer.
  D) relationship key.
  E) marker.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

triiciiaa

  • Sr. Member
  • ****
  • Posts: 349
Reply #1 on: Jul 7, 2018
Answer to Question 1

TRUE
Explanation: A state is a condition during the life of an object during which it satisfies some condition(s), performs some action(s), or waits for some event(s).
CL

Answer to Question 2

A
Explanation: A) For instance, in a CUSTOMER, ORDER relationship, the primary key of CUSTOMER is placed as a foreign key ORDER.
CL


pragya sharda

  • Member
  • Posts: 566
Reply 2 on: Jul 7, 2018
Wow, this really help

raenoj

  • Member
  • Posts: 340
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Peripheral nervous system PNS Diagram Peripheral nervous system PNS Diagram
Emanuel Leutze’s Washington Crossing the Delaware (1851) is riddled with historical inaccuracies, mo Emanuel Leutze’s Washington Crossing the Delaware (1851) is riddled with historical inaccuracies, mo
At breakfast, a middle-class husband sits absorbed in the newspaper and the public affairs of the da At breakfast, a middle-class husband sits absorbed in the newspaper and the public affairs of the da
The medical assistant often has to reassure and comfort the patient before effective communication c The medical assistant often has to reassure and comfort the patient before effective communication c
Stretch the hip in lateral flexion. Bring the knee toward the chest. Place one hand on the shoulder ... Stretch the hip in lateral flexion. Bring the knee toward the chest. Place one hand on the shoulder ...
Use two hands to squeeze both sides of the arm at the same time. Apply from shoulder to wrist. ... Use two hands to squeeze both sides of the arm at the same time. Apply from shoulder to wrist. ...
Video: ribosome

For a complete list of videos, visit our video library