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Author Question: A report generated by a reporting system is delivered to the appropriate users via a printed report ... (Read 46 times)

deesands

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on: Jul 7, 2018
A report generated by a reporting system is delivered to the appropriate users via a printed report on a pre-determined schedule. This system uses which of the following report modes?
 
  A) Push
  B) Pull
  C) Query
  D) OLAP

Question 2

What format is used for weak entities in UML-style E-R diagrams?
 
  What will be an ideal response?


sailorcrescent

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Reply #1 on: Jul 7, 2018
Answer to Question 1

A

Answer to Question 2

UML-style E-R diagrams indicate a weak entity by placing a diamond at the parent end of the connecting line, together with a single number one to represent the a 1..1 cardinality for the parent. To differentiate between ID-dependent and non-ID-dependent relationships, a label is added to the connecting line. If the relationship is ID-dependent, the label is added, and if the relationship is non-ID-dependent, the label is added.


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