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Question: The dependency diagram in Figure indicates that a patient can receive many prescriptions for one or more medicines over time. Based on the dependency diagram, create a database whose tables are in at least 2NF, showing the dependency diagram for each table.
Your first task at Big Data Datacenter is to show some simple proof of concept types of activities. You will need Perl for the proof of concept activities, so you should download it if it is not already installed on your system.
Describe how you have represented weak entities, if any exist and describe how you have represented super type and subtype entities, if any exist.
Discuss the concept of the intersection table. Why is it needed in many to many relationships? Referential integrity "rules" trigger some cleanup of your data when insertion, update, or deletion events would typically cause data anomalies.
Find all department(s) with at least two employees of different names and find the department(s) with the most people and find the names of employee(s) with the highest salary.
Consider a typical job order that might include the following information. Design a single table to hold all the information required to store a job order including this information.
Explain the use of facts, dimensions and attributes in a star schema model. Explain the use of facts, dimensions and attributes in a star schema model.
Write-up thoughts on the tutorial on given tutorials: 2005 Tutorials
Sketch an E-R diagram which reflects the above reuirements. Write a set of relational schemas and identify primary and foreign keys. Try not to include redundant schemas.
Design and develop the below queries using professional principles and standards: Two SQL Statements that return a subset of columns and a subset of rows using the WHERE clause
Statistics can be created on tables, indexes columns and as well as on the individual columns. But, if for some reason table or index statistics have not been updated, then this may result in a full table scan.
Suppose that we have a ternary relationship R between entity sets A, B, and C such that A has a key constraint and total participation andB has a key constraint
write a two-page executive summary for your boss explaining how a relational data solution can be applied to a current
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