Computers and Technology, 25.02.2020 18:22, miagirl0311

Marcia Wilson owns and operates Marcia’s Dry Cleaning, which is an upscale dry cleaner in a well-to-do suburban neighborhood. Marcia makes her business stand out from the competition by providing superior customer service. She wants to keep track of each of her customers and their orders. Ultimately, she wants to notify them that their clothes are ready via e-mail. Suppose that you have designed a database for Marcia’s Dry Cleaning that has the following tables:CUSTOMER (CustomerID, FirstName, LastName, Phone, Email,)INVOICE (InvoiceNumber, CustomerID, DateIn, DateOut, Subtotal, Tax, TotalAmount)INVOICE_ITEM (InvoiceNumber, ItemNumber, ServiceID, Quantity, UnitPrice, ExtendedPrice)SERVICE (ServiceID, ServiceDescription, UnitPrice)Assume that all relationships have been defined, as implied by the foreign keys in this table list, and that the appropriate referential integrity constraints are in place. Create a dependency graph that shows dependencies among these tables. Explain how you need to extend this graph for views and other database constructs such as triggers and stored procedures. Assume you want to change the name of the INVOICE table to CUST_INVOICE. Use the following steps to change the table name:(1) Create a new table with the new name.(2) Alter any constraints, triggers, or views that may be affected.(3) Copy all data from the old table to the new table.(4) Create any needed foreign key constraints(5) Drop the old table

Answers: 1

Show answers

Other questions on the subject: Computers and Technology

Computers and Technology, 23.06.2019 15:00, victordhernandez01

Jake really works well with numbers and is skilled with computers but doesn't work well with others. which of the jobs discussed in this unit might be best for jake? why?

Answers: 3

continue

Computers and Technology, 23.06.2019 19:00, Heyitsbrandi

Now youâ€™re on your own. include a short summary of this section with plots in your lab report. write a matlab script file to do steps (a) through (d) below. include a listing of the script file with your report. 1 the soundsc(xx, fs) function requires two arguments: the first one (xx) contains the vector of data to be played, the second argument (fs) is the sampling rate for playing the samples. in addition, soundsc(xx, fs) does automatic scaling and then calls sound(xx, fs) to actually play the signal. mcclellan, schafer, and yoder, dsp first, 2e, isbn 0-13-065562-7. prentice hall, upper saddle river, nj 07458. c 2015 pearson education, inc. 4 mcclellan, schafer and yoder, signal processing first. prentice hall, upper saddle river, new jersey, 2003. c 2003 prentice hall. (a) generate a time vector (tt) to cover a range of t that will exhibit approximately two cycles of the 4000 hz sinusoids defined in the next part, part (b). use a definition for tt similar to part 2.2(d). if we use t to denote the period of the sinusoids, define the starting time of the vector tt to be equal to t , and the ending time as ct . then the two cycles will include t d 0. finally, make sure that you have at least 25 samples per period of the sinusoidal wave. in other words, when you use the colon operator to define the time vector, make the increment small enough to generate 25 samples per period. (b) generate two 4000 hz sinusoids with arbitrary amplitude and time-shift. x1.t / d a1 cos.2

Answers: 1

continue

Computers and Technology, 23.06.2019 22:20, andrew412603

Learning sign language is an example of a(n) learning sign language is an example of a(n)

Answers: 2

continue

Computers and Technology, 23.06.2019 22:30, reaganphelps3

What would be the address of the cell, which is at the intersection of the second row and the third column in a worksheet?

Answers: 1

continue

Do you know the correct answer?

Marcia Wilson owns and operates Marcia’s Dry Cleaning, which is an upscale dry cleaner in a well-to-...