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ITC 4175 Unit IV Assignment

Unit IV Assignment 

 

SQL Exercise 

 

In this unit, we covered several constraints that can be used to manage the semantic integrity of the database. Your 

textbook did go into much detail on how to use SQL to implement these constraints. The list below contains five 

constraints discussed in this unit. For this assignment, you will research the syntax used to implement the constraint and 

write a statement that a DBA might use to implement each constraint. You may use the CREATE TABLE or the ALTER 

TABLE commands. You should use the Books database schema to write your statements. You do not have to run the 

statements against the database, but you may. Certain commands will not work, depending on the data that is already 

loaded into the tables. For instance, you cannot create a unique constraint on a column that contains non-unique data. (If 

you do run the commands against the Books database, be sure to reverse them as well using the ALTER TABLE or 

DROP TABLE statements.) 

 

After you have typed in each SQL statement or set of SQL statements and executed them successfully, copy your SQL 

code into a Word document. Then create a screen capture of the results window or copy and paste the results into the 

text or Word document as well. The text or Word document should contain the results of all ‘Try It Out’ exercises. Be sure 

to label each one with the title of the assignment, the page number in the textbook, and the number of the step you are 

performing, so that your instructor can easily tell which one is which. Pay attention to the formatting of your SQL 

statements and the labeling, as these items count in the final score as well. The SQL statements should be formatted as 

they appear in the book. 

 

? Primary key constraints 

? Unique constraints 

? Data types 

? Default values 

? Check constraints 

? Submit the five statements in a Word or text document for grading. 

 

Information about accessing the Blackboard Grading Rubric for this assignment is provided below

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