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1) Explain why a small database is not necessarily simpler than a large one. What is a Metadata? How does this term pertain to a database? What advantage is there in storing metadata in tables? Is Microsoft Access a DBMS? Why or why not? List the several consequences of a poorly designed database.
Relational database is based on fact that data in one table can be tied, or related to data in another table. To do this, database utilizes various types of keys to form or define these relationships.
Its a lead a project that will implement a new learning management system for your university. You have two key tasks: Task 1: Investigate learning management software packages that are available through application service providers.
You should choose a data storage problem of your interest and identify the different pieces of data that should be stored in database.
In 500 words or less, trace the history of the development of databases beginning with pre-computer days to the present.
Draw the E/R diagrams for the business rules
The data dictionary serves as an important data management tool by? assigning attributes to the data, maintaining data in updated form.
Can Oracle have multiple group functions in the same SELECT list of query (i.e can we do a COUNT and AVG)? Let us assume we wanted to find lowest, highest, average.
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..
Write a query to determine the cost of the least expensive part in the part table? Format the returned price in dollars and cents using the correct function.
Explain what is the purpose of Database? The purpose of a database is to store information about certain types of objects. Give an example of two related TABLES.
Did the corresponding lines for invoices 1001 and 1008 in table LINE get deleted automatically? Can you explain why?
How many entities are shown by this relation?
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