Database Systems: Design, Implementation, & Management
12th Edition
ISBN: 9781305627482
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 7, Problem 11P
Program Plan Intro
UPDATE table:
“UPDATE” is used to modify the existing records in a table. In the “UPDATE” statement “WHERE” clause is used in order to specify which record should be updated. The syntax is given as follows:
UPDATE tableName SET condition WHERE condition;
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Q.1. Architecture performance [10 marks]
Answer
A certain microprocessor requires either 2, 4, or 6 machine cycles to perform various operations.
⚫ (40+g+f)% require 2 machine cycles,
⚫ (30-g) % require 4 machine cycles, and
⚫ (30-f)% require 6 machine cycles.
(a) What is the average number of machine cycles per instruction for this microprocessor?
Answer
(b) What is the clock rate (machine cycles per second) required for this microprocessor to be a
"1000 MIPS" processor?
Answer
(c) Suppose that 35% of the instructions require retrieving an operand from memory which
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Chapter 7 Solutions
Database Systems: Design, Implementation, & Management
Ch. 7 - Prob. 1RQCh. 7 - Explain why the following command would create an...Ch. 7 - Prob. 3RQCh. 7 - Explain why it might be more appropriate to...Ch. 7 - What is the difference between a column constraint...Ch. 7 - What are referential constraint actions?Ch. 7 - Rewrite the following WHERE clause without the use...Ch. 7 - Explain the difference between an ORDER BY clause...Ch. 7 - Explain why the following two commands produce...Ch. 7 - What is the difference between the COUNT aggregate...
Ch. 7 - Prob. 11RQCh. 7 - Prob. 12RQCh. 7 - Write the SQL code that will create the table...Ch. 7 - Having created the table structure in Problem 1,...Ch. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Write the SQL code to change the job code to 501...Ch. 7 - Write the SQL code to delete the row for William...Ch. 7 - Write the SQL code that will restore the data to...Ch. 7 - Write the SQL code to create a copy of EMP_1,...Ch. 7 - Write the SQL code to change the EMP_PCT value to...Ch. 7 - Using a single command sequence, write the SQL...Ch. 7 - Prob. 11PCh. 7 - Write the SQL code that will change the PROJ_NUM...Ch. 7 - Write the two SQL command sequences required to:...Ch. 7 - Prob. 14PCh. 7 - Prob. 15PCh. 7 - Using the EMPLOYEE, JOB, and PROJECT tables in the...Ch. 7 - Write the SQL code that will produce the same...Ch. 7 - Write the SQL code to find the average bonus...Ch. 7 - Prob. 19PCh. 7 - Prob. 20PCh. 7 - Write the SQL code to calculate the ASSIGN_CHARGE...Ch. 7 - Using the data in the ASSIGNMENT table, write the...Ch. 7 - Prob. 23PCh. 7 - Write the SQL code to generate the total hours...Ch. 7 - Prob. 25PCh. 7 - Prob. 26PCh. 7 - Prob. 27PCh. 7 - Generate a listing of all purchases made by the...Ch. 7 - Using the output shown in Figure P7.29 as your...Ch. 7 - Prob. 30PCh. 7 - Prob. 31PCh. 7 - Use a query to compute the average purchase amount...Ch. 7 - Prob. 33PCh. 7 - Prob. 34PCh. 7 - Prob. 35PCh. 7 - Prob. 36PCh. 7 - Prob. 37PCh. 7 - Using the results of the query created in Problem...Ch. 7 - Create a query to find the balance characteristics...Ch. 7 - Prob. 40PCh. 7 - Prob. 41PCh. 7 - Prob. 42PCh. 7 - Prob. 43PCh. 7 - Prob. 44PCh. 7 - Write a query to display the SKU (stock keeping...Ch. 7 - Prob. 46PCh. 7 - Prob. 47PCh. 7 - Prob. 48PCh. 7 - Prob. 49PCh. 7 - Prob. 50PCh. 7 - Prob. 51PCh. 7 - Prob. 52PCh. 7 - Prob. 53PCh. 7 - Prob. 54PCh. 7 - Prob. 55PCh. 7 - Prob. 56PCh. 7 - Prob. 57PCh. 7 - Prob. 58PCh. 7 - Prob. 59PCh. 7 - Prob. 60PCh. 7 - Prob. 61PCh. 7 - Prob. 62PCh. 7 - Prob. 63PCh. 7 - Prob. 64PCh. 7 - Prob. 65PCh. 7 - Prob. 66PCh. 7 - Prob. 67PCh. 7 - Prob. 68PCh. 7 - Prob. 69PCh. 7 - Prob. 70PCh. 7 - Prob. 71PCh. 7 - Prob. 72PCh. 7 - Prob. 73PCh. 7 - Prob. 74PCh. 7 - Prob. 75PCh. 7 - Prob. 76PCh. 7 - Prob. 77PCh. 7 - Prob. 78PCh. 7 - Prob. 79PCh. 7 - Prob. 80PCh. 7 - Prob. 81PCh. 7 - Prob. 82PCh. 7 - Prob. 83PCh. 7 - Prob. 84PCh. 7 - Prob. 85PCh. 7 - Prob. 86PCh. 7 - Prob. 87PCh. 7 - Prob. 88PCh. 7 - Prob. 89PCh. 7 - Prob. 90PCh. 7 - Prob. 91PCh. 7 - Prob. 92PCh. 7 - Prob. 93PCh. 7 - Prob. 94PCh. 7 - Prob. 95PCh. 7 - Write the SQL code to create the table structures...Ch. 7 - The following tables provide a very small portion...Ch. 7 - Write the SQL command to save the rows inserted in...Ch. 7 - Write the SQL command to change the movie year for...Ch. 7 - Prob. 100CCh. 7 - Prob. 101CCh. 7 - Prob. 102CCh. 7 - Prob. 103CCh. 7 - Prob. 104CCh. 7 - Prob. 105CCh. 7 - Prob. 106CCh. 7 - Prob. 107CCh. 7 - Prob. 108CCh. 7 - Prob. 109CCh. 7 - Prob. 110CCh. 7 - Prob. 111CCh. 7 - Prob. 112CCh. 7 - Prob. 113CCh. 7 - Prob. 114CCh. 7 - Prob. 115CCh. 7 - Prob. 116CCh. 7 - Prob. 117CCh. 7 - Prob. 118CCh. 7 - Prob. 119CCh. 7 - Prob. 120CCh. 7 - Prob. 121CCh. 7 - Prob. 122CCh. 7 - Prob. 123CCh. 7 - Prob. 124CCh. 7 - Write a query to display the movie number, movie...
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- Q.2. Architecture performance [25 marks] Consider two different implementations, M1 and M2, of the same instruction set. M1 has a clock rate of 2 GHz and M2 has a clock rate of 3.3 GHz. There are two classes of instructions with the following CPIs: Class A CPI for M1 CPI for M2 2.f 1.g B 5 3 C 6 4 Note that the dots in 2 fand 1.g indicate decimal points and not multiplication. a) What are the peak MIPS performances for both machines? b) Which implementation is faster, if half the instructions executed in a certain program are from class A, while the rest are divided equally among classes B and C. c) What speedup factor for the execution of class-A instructions would lead to 20% overall speedup? d) What is the maximum possible speedup that can be achieved by only improving the execution of class-A instructions? Explain why. e) What is the clock rate required for microprocessor M1 to be a "1000 MIPS" (not peak MIPS) processor?arrow_forwardPLEASE SOLVE STEP BY STEP WITHOUT ARTIFICIAL INTELLIGENCE OR CHATGPT I don't understand why you use chatgpt, if I wanted to I would do it myself, I need to learn from you, not from being a d amn robot. SOLVE STEP BY STEP I WANT THE DIAGRAM PERFECTLY IN SIMULINKarrow_forwardI need to develop and run a program that prompts the user to enter a positive integer n, and then calculate the value of n factorial n! = multiplication of all integers between 1 and n, and print the value n! on the screen. This is for C*.arrow_forward
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