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Question: How do you select the primary key from the candidate keys? How do foreign keys relate to candidate keys? Provide examples from either your workplace or class assignments.
Assume that 30% of science students are majoring in biology. Would you consider to be novel with respect to rule? Describe. Calculate confidence and support of rule.
Describe in your own words and illustrate with tables how relationships are represented in a relational database?
The prototype program should be running without errors throughout the two Phases: Information Gathering and Information Presenting.
consider the following set of database tables same tables from assignment 6-1. please take note of foreign keys most of
How big is a single interval in volts. Receivers have no choice but to decode the the binary sample value at the center of the interval. So, what would the received voltage of the sample be
Create mission statements and mission objectives for database systems explained in the following case study EasyDrive School of Motoring. Also in mission objectives include 10 reports that the database system must support
Need a three-level schema architecture for the Company that provide better security also design a data abstraction
Consider a student club or organization in which you are a member. What are the data entities of this enterprise? List and define each entity
A primary key can be computer generated. consists of one field only that uniquely identifies each record in a table. is a relationship between two or more tables. All of the above.
How to decide which attribute should be there in the table and schema? How to identify the primary keys, foreign keys, domain, E-R diagram and 20 Queries on the same database.
Give at least three reasons why ETL functions are most challenging in a data warehouse environment.
question 1 entity-relationship er model create an er diagram using the set of requirements provided for oxford city
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