Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9781337627900
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 3, Problem 3P
Do the tables exhibit referential integrity? Answer yes or no, and then explain your answer. Write NA (Not Applicable) if the table does not have a foreign key.
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Do the tables exihibit referential integrity.Answer yes or no, and then explain your answer.
Do the tables exihibit referential integrity.Answer yes or no, and then explain your answer.Write NA if the table does not have a foreign key.
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Chapter 3 Solutions
Database Systems: Design, Implementation, & Management
Ch. 3 - What is the difference between a database and a...Ch. 3 - Prob. 2RQCh. 3 - Prob. 3RQCh. 3 - What are the requirements that two relations must...Ch. 3 - Which relational algebra operators can be applied...Ch. 3 - Explain why the data dictionary is sometimes...Ch. 3 - A database user manually notes that The file...Ch. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - Prob. 10RQ
Ch. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Use Figure Q3.13 to answer Questions 1317. FIGURE...Ch. 3 - Create the table that results from applying a...Ch. 3 - Write the relational algebra formula to apply an...Ch. 3 - Create the table that results from applying an...Ch. 3 - Using the tables in Figure Q3.13, create the table...Ch. 3 - Prob. 18RQCh. 3 - Prob. 19RQCh. 3 - Prob. 20RQCh. 3 - Identify and describe the components of the table...Ch. 3 - Identify the primary keys. FIGURE Q3.22 THE...Ch. 3 - Identify the foreign keys. FIGURE Q3.22 THE...Ch. 3 - Create the ERM. FIGURE Q3.22 THE CH03_THEATER...Ch. 3 - Create the relational diagram to show the...Ch. 3 - Prob. 26RQCh. 3 - What would be the conceptual view of the INDEX...Ch. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Do the tables exhibit referential integrity?...Ch. 3 - Describe the type(s) of relationship(s) between...Ch. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7PCh. 3 - Prob. 8PCh. 3 - Create the relational diagram to show the...Ch. 3 - Prob. 10PCh. 3 - Prob. 11PCh. 3 - Create the relational diagram to show the...Ch. 3 - Prob. 13PCh. 3 - Do the tables exhibit referential integrity?...Ch. 3 - Prob. 15PCh. 3 - Prob. 16PCh. 3 - For each table, identify the primary key and the...Ch. 3 - Prob. 18PCh. 3 - Do the tables exhibit referential integrity?...Ch. 3 - Identify the TRUCK tables candidate key(s). FIGURE...Ch. 3 - For each table, identify a superkey and a...Ch. 3 - Prob. 22PCh. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Create the ERD. (Hint: Look at the table contents....Ch. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Create the table that would result from applying...Ch. 3 - Create the table that would result from applying...Ch. 3 - Create the table that would result from applying a...
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- What is a primary key? What is the primary key for each of the tables in the Colonial Adventure Tours database shown in Chapter 1?arrow_forwardDo the tables exhibit referential integrity? Answer yes or no, and then explain your answer. Write NA (Not Applicable) if the table does not have a foreign key. FIGURE P3.17 THE CH03_TRANSCO DATABASE TABLESarrow_forwardWhat exactly is a main key? How crucial is the main key in establishing a link between tables?arrow_forward
- If something is transitive, what does that entail? What is the rule for converting tables from the second normal form to the third normal form?arrow_forwardWrite foreign key constraints for the relationships in each of these tables. Make your own assumptions regarding cascading updates and deletions and justify those assumptions. (Hint: You can combine the SQL for your answers to parts A and B.)arrow_forwardThe option for referential integrity between the Owner table and the Pet table is cascade and an attempt is made to update the row for Owner 005 in the Owner table (OwnerNum = 005) to have a new OwnerNum of 500. What is the result? (Use only the data in the question. Do not assume other data exists if it is not present in the tables below.)  The primary keys are underlined. These are the OwnerNum column in the Owner table and the PetNumber in the Pet table. The foreign key is italicized. This is the OwnerNum column in the Pet table. Owner Table OwnerNum LastName FirstName Address City State Zip 005 Smith Jim 100 Main Dune FL 37465 009 Jones Jane 3245 West Sanford FL 32773 012 Johnson Frank 2 Century Easton FL 37256 020 Doe Sally 101 Basel Orange FL 30998 Pet Table PetNumber PetName DOB Species OwnerNum 100 Fido 1/1/2005 Canine 009 200 Ajax 12/3/2003 Canine 020 300 Sunshine 6./12/2004…arrow_forward
- What is the primary key, candidate keys, foreign keys, and non-key columns in these two tables? In which normal form is the logical design of the purchases database?arrow_forwardWhat are the implications of having multiple candidate keys in a relational table?arrow_forwardTo what extent is it possible to alter a table's layout by using the SQL language? Which of these key shifts should be seriously considered? To what commands must these changes be applied?arrow_forward
- What are the steps for changing a table's structure in SQL? Which of these important shifts should be taken into account? To put these changes into effect, what commands must be executed?arrow_forwardPrescription is in 2NF. Is table Prescription in 3NF, given the dependencies? If yes, why? If not, normalize to 3NF. Prescription (PrescriptionNum, Date, Drug, Dosage, PhysicianID, PhysicianLastName, PatientID) PrescriptionNum is the primary key. In addition, PhysicianID --> PhysicianLastNamearrow_forwardWhat is a key feature of fifth normal form?   A key step in this normal form has every determinant in a table as a candidate key. Foreign keys are created in this normal form. This normal form has the tables broken down into as many tables as possible to avoid redundancy. This normal form resolves any multivalued dependencies.arrow_forward
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