a) Attribute that are candidate for partitioning: In parallel systems, the data gets partitioned over different disks. The partitions are performed based on the attribute present in the relation. Consider a relation with specified work load of SQL queries. The candidate attribute for the partitioning would be The one which has maximum queries that holds selection condition. The condition is then evaluated using a single processor rather than performing all of them...

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Answer 1

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Chapter 22, Problem 16E

Explanation of Solution

a)

Attribute that are candidate for partitioning:

In parallel systems, the data gets partitioned over different disks. The partitions are performed based on the attribute present in the relation.

Consider a relation with specified work load of SQL queries. The candidate attribute for the partitioning would be

The one which has maximum queries that holds selection condition. The condition is then evaluated using a single processor rather than performing all of them...

Explanation of Solution

b)

Choose between the alternative:

To choose between the alternative partitioning techniques the cost based approach would be the best approach.

Generate various candidates partitioning choice for each candidate too.

The cost of estimating all the queries including the updates in the given workload.

Choose the candidate that will lead to least cost.

The problem is that usually both the number of candidate attributes and queries can be too large...

Explanation of Solution

c)

Partitioning a relation:

Yes, it is possible to partition a relation on more than one attribute in the following ways;

Involving the attributes in a single compound partitioning key...

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Write a FancyCar class to support basic operations such as drive, add gas, honk horn, and start engine. FancyCar.java is provided with method stubs. Follow each step to gradually complete all methods. Note: This program is designed for incremental development. Complete each step and submit for grading before starting the next step. Only a portion of tests pass after each step but confirm progress. The main() method includes basic method calls. Add statements in main() as methods are completed to support development mode testing. Step 0. Declare private fields for miles driven as shown on the odometer (int), gallons of gas in tank (double), miles per gallon or MPG (double), driving capacity (double), and car model (String). Note the provided final variable indicates the gas tank capacity of 14.0 gallons. Step 1 (2 pts). 1) Complete the default constructor by initializing the odometer to five miles, tank is full of gas, miles per gallon is 24.0, and the model is "Old Clunker". 2)…

Find the error: daily_sales = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0] days_of_week = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'] for i in range(7): daily_sales[i] = float(input('Enter the sales for ' \ + day_of_week[i] + ': ')

Find the error: daily_sales = [0.0, 0,0, 0.0, 0.0, 0.0, 0.0, 0.0] days_of_week = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'] for i in range(7): daily_sales[i] = float(input('Enter the sales for ' \ + days_of_week[i] + ': ')

Answer 2

Expert Solution & Answer

Chapter 22, Problem 16E

Explanation of Solution

a)

Attribute that are candidate for partitioning:

In parallel systems, the data gets partitioned over different disks. The partitions are performed based on the attribute present in the relation.

Consider a relation with specified work load of SQL queries. The candidate attribute for the partitioning would be

The one which has maximum queries that holds selection condition. The condition is then evaluated using a single processor rather than performing all of them...

Explanation of Solution

b)

Choose between the alternative:

To choose between the alternative partitioning techniques the cost based approach would be the best approach.

Generate various candidates partitioning choice for each candidate too.

The cost of estimating all the queries including the updates in the given workload.

Choose the candidate that will lead to least cost.

The problem is that usually both the number of candidate attributes and queries can be too large...

Explanation of Solution

c)

Partitioning a relation:

Yes, it is possible to partition a relation on more than one attribute in the following ways;

Involving the attributes in a single compound partitioning key...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Expert Solution & Answer

Chapter 22, Problem 16E

Explanation of Solution

a)

Attribute that are candidate for partitioning:

In parallel systems, the data gets partitioned over different disks. The partitions are performed based on the attribute present in the relation.

Consider a relation with specified work load of SQL queries. The candidate attribute for the partitioning would be

The one which has maximum queries that holds selection condition. The condition is then evaluated using a single processor rather than performing all of them...

Explanation of Solution

b)

Choose between the alternative:

To choose between the alternative partitioning techniques the cost based approach would be the best approach.

Generate various candidates partitioning choice for each candidate too.

The cost of estimating all the queries including the updates in the given workload.

Choose the candidate that will lead to least cost.

The problem is that usually both the number of candidate attributes and queries can be too large...

Explanation of Solution

c)

Partitioning a relation:

Yes, it is possible to partition a relation on more than one attribute in the following ways;

Involving the attributes in a single compound partitioning key...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Expert Solution & Answer

Chapter 22, Problem 16E

Explanation of Solution

a)

Attribute that are candidate for partitioning:

In parallel systems, the data gets partitioned over different disks. The partitions are performed based on the attribute present in the relation.

Consider a relation with specified work load of SQL queries. The candidate attribute for the partitioning would be

The one which has maximum queries that holds selection condition. The condition is then evaluated using a single processor rather than performing all of them...

Explanation of Solution

b)

Choose between the alternative:

To choose between the alternative partitioning techniques the cost based approach would be the best approach.

Generate various candidates partitioning choice for each candidate too.

The cost of estimating all the queries including the updates in the given workload.

Choose the candidate that will lead to least cost.

The problem is that usually both the number of candidate attributes and queries can be too large...

Explanation of Solution

c)

Partitioning a relation:

Yes, it is possible to partition a relation on more than one attribute in the following ways;

Involving the attributes in a single compound partitioning key...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Expert Solution & Answer

Answer 6

Expert Solution & Answer

Answer 7

Chapter 22, Problem 16E

Explanation of Solution

a)

Attribute that are candidate for partitioning:

In parallel systems, the data gets partitioned over different disks. The partitions are performed based on the attribute present in the relation.

Consider a relation with specified work load of SQL queries. The candidate attribute for the partitioning would be

The one which has maximum queries that holds selection condition. The condition is then evaluated using a single processor rather than performing all of them...

Explanation of Solution

b)

Choose between the alternative:

To choose between the alternative partitioning techniques the cost based approach would be the best approach.

Generate various candidates partitioning choice for each candidate too.

The cost of estimating all the queries including the updates in the given workload.

Choose the candidate that will lead to least cost.

The problem is that usually both the number of candidate attributes and queries can be too large...

Explanation of Solution

c)

Partitioning a relation:

Yes, it is possible to partition a relation on more than one attribute in the following ways;

Involving the attributes in a single compound partitioning key...

Answer 8

Chapter 22, Problem 16E

Explanation of Solution

a)

Attribute that are candidate for partitioning:

In parallel systems, the data gets partitioned over different disks. The partitions are performed based on the attribute present in the relation.

Consider a relation with specified work load of SQL queries. The candidate attribute for the partitioning would be

The one which has maximum queries that holds selection condition. The condition is then evaluated using a single processor rather than performing all of them...

Answer 9

Chapter 22, Problem 16E

Explanation of Solution

a)

Attribute that are candidate for partitioning:

In parallel systems, the data gets partitioned over different disks. The partitions are performed based on the attribute present in the relation.

Consider a relation with specified work load of SQL queries. The candidate attribute for the partitioning would be

The one which has maximum queries that holds selection condition. The condition is then evaluated using a single processor rather than performing all of them...

Answer 10

Explanation of Solution

b)

Choose between the alternative:

To choose between the alternative partitioning techniques the cost based approach would be the best approach.

Generate various candidates partitioning choice for each candidate too.

The cost of estimating all the queries including the updates in the given workload.

Choose the candidate that will lead to least cost.

The problem is that usually both the number of candidate attributes and queries can be too large...

Answer 11

Explanation of Solution

b)

Choose between the alternative:

To choose between the alternative partitioning techniques the cost based approach would be the best approach.

Generate various candidates partitioning choice for each candidate too.

The cost of estimating all the queries including the updates in the given workload.

Choose the candidate that will lead to least cost.

The problem is that usually both the number of candidate attributes and queries can be too large...

Answer 12

Explanation of Solution

c)

Partitioning a relation:

Yes, it is possible to partition a relation on more than one attribute in the following ways;

Involving the attributes in a single compound partitioning key...

Answer 13

Explanation of Solution

c)

Partitioning a relation:

Yes, it is possible to partition a relation on more than one attribute in the following ways;

Involving the attributes in a single compound partitioning key...

Answer 14

Expert Solution & Answer

Answer 15

Expert Solution & Answer

Answer 16

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Answer 17

Ch. 22 - Prob. 1PE Ch. 22 - Prob. 2PE Ch. 22 - Prob. 3PE Ch. 22 - Prob. 4PE Ch. 22 - Prob. 6PE Ch. 22 - Prob. 7PE Ch. 22 - Prob. 8PE Ch. 22 - Prob. 9PE Ch. 22 - Prob. 10PE Ch. 22 - Prob. 13E

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Explanation of Solution

c)

Partitioning a relation:

Yes, it is possible to partition a relation on more than one attribute in the following ways;

Involving the attributes in a single compound partitioning key...

Want to see the full answer?

Chapter 22 Solutions

Concept explainers

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Explanation of Solution

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Explanation of Solution

c) Partitioning a relation: Yes, it is possible to partition a relation on more than one attribute in the following ways; Involving the attributes in a single compound partitioning key...

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Chapter 22 Solutions

c)

Partitioning a relation:

Yes, it is possible to partition a relation on more than one attribute in the following ways;

Involving the attributes in a single compound partitioning key...