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Discussion: "Preparing an Adequate Data Model"
Respond to the following:
• Using specialization hierarchies can provide an efficient application development structure. Justify the use of surrogate primary keys for a database design. Provide an example to support your response.
• Historical data can be important to measuring performance. Prepare an example on how time-variant data can be properly captured and maintained within a database system.
Describe all the tables - get table_name, status, num_rows, user_stats in user_tables system vie
Identify and describe the components of the table shown in Figure, using correct terminology. Use your knowledge of naming conventions to identify the table's.
Explain in your own words the differences between sorting and indexing. Explain seven database models, and give examples of each type.
List OrderIDs and the associated Employee Names for orders that shipped after the required date. List all Categories (CategoryID, CategoryName) and all Product.
What can you tell me about hybrid databases? What are the positives and negatives? Are they better than using a OO or Relational database specifically? (Research will be necessary and do not rely solely on Wikipedia)
Provide the SQL CREATE TABLE commands for two of the tables in your proposed database.Identify SQL Statements to build tables in your proposed database.
Discuss how OLAP and data warehousing technologies work together in solving user problems. What are the advantages and disadvantages of the different OLAP technologies (MOLAP, ROLAP, HOLAP)?
Looking at the ERD, is Pet an optional or mandatory participant in the "Owns" relationship? Looking at the relationship cardinalities show in the ERD, what is the maximum number of pets that a customer can own
Create an XML document with at least three instances of the car element defined in the XML schema of Exercise 1, and produce a display of the raw document.
Suppose H(m) is a collision-resistant hash function that maps a message of arbitrary bit length into an n-big hash value. Is it true that, for all messages x, x1 with x=x1, we have H(x) x=H(x1)?
Choose 2 enterprises(businesses, corporations, companies, institutions) from one or more economic, organizational, institutional or industrial sector of interest to you. See the Appendix for suggestions and examples.
Write a 500-1000 word paper using Word discussing SQL Injection. Be sure to include ways to prevent this type of attack. Use at least two sources outside your text and course material for this paper.
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