Not all versions of this database include referential integrity constraints for all foreign keys. Use whatever commands are available for the RDBMS you are using, investigate if any referential integrity constraints are missing. Write any missing constraints and, if possible, add them to the associated table definitions.

Not all versions of this database include referential integrity constraints for all foreign keys. Use whatever commands are available for the RDBMS you are using, investigate if any referential integrity constraints are missing. Write any missing constraints and, if possible, add them to the associated table definitions.

A Guide to SQL

9th Edition

ISBN:9781111527273

Author:Philip J. Pratt

Publisher:Philip J. Pratt

Chapter3: Creating Tables

Section: Chapter Questions

Problem 4TD

See similar textbooks

Similar questions

An EMPLOYEES table was added to the JustLee Books database to track employee information. Display a list of each employee’s name, job title, and manager’s name. Use column aliases to clearly identify employee and manager name values. Include all employees in the list and sort by manager name.
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?
You will need to add a CREATE DATABASE and USE database statement at the beginning of the script in the file of the Sample Database in order for SQL Script in the Sample Database to execute/run correctly If you discover any ambiguity between the written Metadata and the actual table definitions, the path that I recommend is to use the SHOW TABLES Statement and the DESCRIBE Table Statement to eliminate any ambiguity between the written Metadata and the actual Metadata. CustOrders.sql download Aggregation Part of the Exercise . Select the maximum price of any orders in the items_ordered table. Hint: Select the maximum price only. . Select the average price of all of the orders that were purchased in the month of Dec. . Return the total number of rows in the orders table? . For all of the tents that were ordered in the orders table, what is the price of the lowest tent? Hint: Your query should return the price only. Group By Exercises . How many people are…
Explain the normalized form of the Index metadata link and why you can see a drop in performance if you do.
Many but not all of the databases in this series do not enforce relative integrity on all foreign keys. To ensure that there are no loose ends in terms of referential integrity, use the RDBMS tools at your disposal. You are asked to complete the missing constraints and definitions for the related tables.
Not all databases in this series provide relative integrity checks for all foreign keys. You should use the RDBMS tools at your disposal to look for lapses in referential integrity. Complete the missing restrictions and definitions in the respective tables.
What features do functional dependencies used for normalization have?
What is are some of the differences between the char, varchar, text, memo, and blob databases in CREATE TABLE? Are they supported by all databases?
The DBA denormalized certain data in the TAL Distributors database for the sake of speed, and one of the resultant tables looks like this: Customer table is not in third normal form due to the following field(s): CustomerNum, CustomerName, Street, City, State, PostalCode, Balance, CreditLimit, RepNum, RepName. Under this situation, what does the normal form of the denormalized table look like?
With the help of a select operation in a relational database, one may reduce the amount of space used by a table by removing columns that meet certain requirements.Is this the right or erroneous interpretation?
Apply normalization to your database tables up to 3NF. Make sure that the database is in Third Normal Form.
In a relational database, a select operation is used to delete columns that satisfy specific criteria, hence reducing the size of a table.Is this statement accurate?