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What four main types of actions involve databases? Briefly discuss each. What are the responsibilities of the DBA and the database designers? What is the difference between a database schema and a database state? What is the difference between procedural and nonprocedural DMLs?What is the difference between the two-tier and three-tier client/server architectures?
Design an Relational Model (RM) model of a database (DB) that will be useful for each of the chosen enterprises and Implement the 2 enterprise relational DBs using either MySQL or SQLite
Complete following task. In each exercise, represent answer in both DBDL and with diagram. You may use any of styles for diagram. Create database to produce following reports. Do not use any surrogate keys in design.
Consider a relation schema r(A,B,C,D,E, F) and a set of functional dependencies {A BCD,BCDE,BD,DA}. Determine whether or not (A,E, F) is in BCNF and justify your answer. If (A,E, F) is not in BCNF,find a BCNF decomposition of it.
a simple database with a single table contains data concerning rental properties in australia. the table contains five
Assume a game with two players, A and B, who raise one or both hands concurrently. A wins if total number of hands raised is odd, and B wins in other way.Write down the matrix form of the game. Is there a pure strategy solution? Explain your answer..
What is a data model and what is it purpose and what is a prototype and what is its purpose - What is a use case, and what is its purpose?
Outline the main differences between database requirements for operational data and for decision support data
What's Bothering You? You had good reasons to implement tax calculations within the Item class-it makes much more sense than placing it in the other current classes.
Create an ERD to show the resultant tables at the 3NF level with all the needed attributes, Primary/Foreign keys etc - Create the RDM with appropriate attributes, primary and foreign keys.
Consider the triangle classification specification. The system reads in three positive values from the standard input. The three values A,B, and C are interpreted as representing the lengths of the sides of a triangle.
What is cold backup and hot backup (in case of Oracle)? What are Armstrong rules? How do we say that they are complete and/or sound?
Demonstrate academic and professional literacy by collating theoretical and practical course material into a workable application through understanding concepts and their practical application using .NET.
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