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Author Question: Which of the following is NOT a reason to create an instance of a relational schema with sample ... (Read 114 times)

james0929

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on: Jul 7, 2018
Which of the following is NOT a reason to create an instance of a relational schema with sample data?
 
  A) Sample data can be used to improve user communications.
  B) Sample data can be used for prototype generation.
  C) Sample data can reverse database implementation errors.
  D) Sample data provide a convenient way to check the accuracy of your design.

Question 2

Which of the following criteria should be considered when selecting an identifier?
 
  A) Choose an identifier that is stable.
  B) Choose an identifier that will not be null.
  C) Choose an identifier that doesn't have large composite attributes.
  D) All of the above.
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harveenkau8139

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Reply #1 on: Jul 7, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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james0929

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Reply 2 on: Jul 7, 2018
Gracias!

JaynaD87

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Reply 3 on: Yesterday
Wow, this really help

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