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Problem
A plumbing manufacturer makes two lines of bathtubs, model A and model B. Every tub requires blending a certain amount of steel and zinc; the company has available a total of 24,500 pounds of steel and 6,000 pounds of zinc. Each model A bathtub requires a mixture of 120 pounds of steel and 20 pounds of zinc, and each yields a profit of $90. Each model B tub produced can be sold for a profit of $70; it requires 100 pounds of steel and 30 pounds of zinc. To maintain an adequate supply of both models, the manufacturer would like the number of model A tubs made to be no more than 5 times the number of model B tubs. Find the best product mix of bathtubs.
With the Customers table sorted in alphabetical order by city, what is name of first customer to appear in table? Who are the customers located in Tennessee?
implement a database of courses and students for a school keeping track of which students are taking which courses.
If the "greater than" comparison operator is used with a multiple-row subquery, what type of result will be returned?
Database Modeling and Design: A complete table diagram. Transform model to tables, include all attributes and keys.
Build a relational database that will allow for querying things such as products sold, customer purchases, total apartment purchases, and total spent per apartment.
Discuss at least two reasons organizations use databases and DBMS's. Discuss one advantage a database has over a spreadsheet
DISPLAY CNAME OF THE CUSTOMER TABLE IN ALPHABETICAL ORDER. DISPLAY WAREHOUSENO OF THE WAREHOUSE TABLE WHOSE WCITY IS ‘HUBLI'.
How effective is the SAS statistical modeling software described in this case study? Explain your answer. What concepts in this chapter are illustrated in this case
In the following project, you will open a database containing the inventory of a bookstore, create a new table in which to store publisher information, add records, and then sort the table
This version of MySQL doesn't implement check constraints. With that in mind, how might you check to ensure dates are entered correctly?
Use "Appendix A: Designing Databases with Visio Professional: A Tutorial," to help you complete Section 1: Visio Database Design. (Note: This tutorial focuses on the use of Microsoft Visio. Open source applications are not covered in Appendix A; h..
What is the most important component of a database? Is it the design standards, the processing speed, or the information requirements? The fact is that for a database to be effective, it must have a balance between all three of these areas.
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