data file structures
Our academic writers are ready and waiting to assist with any assignment you may have. From simple essays to full dissertations, you're guaranteed we've got a writing expert to perfectly match your needs.
Order a Similar Paper
Order a Different Paper
1. A table has 250,000 Customer records of fixed-length. Each row has the following columns:
NAME (20 bytes)ID (9 bytes)
ADDRESS (40 bytes)PHONE (9 bytes)
BIRTHDATE (8 bytes)GENDER (1 byte)
PRODCODE (4 bytes)DEPTCODE (4 bytes)
CATCODE (4 bytes)BUYERPROGRAM (3 bytes)
An additional byte per row is used as a deletion marker.
a. Calculate the row (record) size R in bytes.
b. Calculate the table size (T) in bytes.
c. Assuming a 512 byte block, calculate the number of blocks required assuming a spanned block organization. where each block uses a 5-byte pointer to the next block.
2. Create a B+-tree index for the following sequential data. Think about what you will need to do to create the index. Make sure your index values are well balanced. Show the path that the system would take to find the record for Norton:
Use Figure 5-7 in Chapter 5 on page 222 as a guide or the following link for assistance:
http://sqlity.net/en/2445/b-plus-tree/
Harshman |
Douglass |
Stokes |
Keller |
Wassef |
Beck |
Walker |
Wehe |
Daisley |
Kolber |
Fegley |
Ainley |
Banks |
Siu |
Bartter |
Russell |
Palermo |
Rucker |
Mclain |
Shields |
Maestas |
Beasley |
Vogel |
Blackwelder |
Kjeell |
Silverberg |
Condreay |
Boklage |
Bidwell |
Oller |
Calnin |
Sanders |
Rodriguez |
Couto |
Ladewig |
Steinhauser |
Khandpur |
Beckstead |
Fisher |
Shaw |
Pritchett |
Harrison |
Ray |
Fudickar |
Whiteley |
Scheer |
Wayman |
Rembold |
Shankar |
Stokes |
Goldstein |
McIlwain |
Trostle |
Grulke |
Kulbacki |
Hager |
Duval |
Johnson |
Holt |
Jahnke |
Berthold |
Fortkamp |
Wylie Biggs |
Williams |
Fenzel |
Medders |
Madding |
Blake |
Bytheway |
Cimino |
Coles |
Mayer |
Bolduc |
Hughes |
Hoem |
McElvain |
Krueger |
Basnet |
Megerdichian |
Jones |
O’Connell |
Meyer |
Norton |
Wood |
Bushell |
Sears |
Wilson-Ferry |
Molatore |
Sepich-Anderson |
Makens |
Craig |
Toma |
Curtis |
Walz |
Taplin |
Potter |
Amen |
Hadden |
Smith |
James |
Zivich |
Booth |
Ducharme |
Do you need help with this or a different assignment? In a world where academic success does not come without efforts, we do our best to provide the most proficient and capable essay writing service. After all, impressing professors shouldn’t be hard, we make that possible. If you decide to make your order on our website, you will get 15 % off your first order. You only need to indicate the discount code GET15.
Order a Similar Paper Order a Different Paper