a. DISTINCT: “DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows: SELECT DISTINCT column_Name FROM table_Name; Query: Select distinct name from student natural join takes natural join course where course...

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Answer 1

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Chapter 3, Problem 11E

Explanation of Solution

a.

DISTINCT:

“DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

SELECT DISTINCT column_Name FROM table_Name;

Query:

Select distinct name from student natural join takes natural join course where course...

Explanation of Solution

b.

Query:

Select ID, name from student natural join takes except

Select ID, name from student natural join takes where year<2017

Explanation:
...

Explanation of Solution

c.

Query:

Select dept_name, max(salary) from instructor group by dept_name

Explanat...

Explanation of Solution

d.

Query:

Select min(max_sal) from (select dept_name, max(salary) as max_sal from instructor group by dept_name)

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Modular Program Structure. Analysis of Structured Programming Examples. Ways to Reduce Coupling. Based on the given problem, create an algorithm and a block diagram, and write the program code: Function: y=xsin⁡x Interval: [0,π] Requirements: Create a graph of the function. Show the coordinates (x and y). Choose your own scale and show it in the block diagram. Create a block diagram based on the algorithm. Write the program code in Python. Requirements: Each step in the block diagram must be clearly shown. The graph of the function must be drawn and saved (in PNG format). Write the code in a modular way (functions and the main part should be separate). Please explain and describe the results in detail.

Based on the given problem, create an algorithm and a block diagram, and write the program code: Function: y=xsin⁡x Interval: [0,π] Requirements: Create a graph of the function. Show the coordinates (x and y). Choose your own scale and show it in the block diagram. Create a block diagram based on the algorithm. Write the program code in Python. Requirements: Each step in the block diagram must be clearly shown. The graph of the function must be drawn and saved (in PNG format). Write the code in a modular way (functions and the main part should be separate). Please explain and describe the results in detail.

Answer 2

Expert Solution & Answer

Chapter 3, Problem 11E

Explanation of Solution

a.

DISTINCT:

“DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

SELECT DISTINCT column_Name FROM table_Name;

Query:

Select distinct name from student natural join takes natural join course where course...

Explanation of Solution

b.

Query:

Select ID, name from student natural join takes except

Select ID, name from student natural join takes where year<2017

Explanation:
...

Explanation of Solution

c.

Query:

Select dept_name, max(salary) from instructor group by dept_name

Explanat...

Explanation of Solution

d.

Query:

Select min(max_sal) from (select dept_name, max(salary) as max_sal from instructor group by dept_name)

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Expert Solution & Answer

Chapter 3, Problem 11E

Explanation of Solution

a.

DISTINCT:

“DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

SELECT DISTINCT column_Name FROM table_Name;

Query:

Select distinct name from student natural join takes natural join course where course...

Explanation of Solution

b.

Query:

Select ID, name from student natural join takes except

Select ID, name from student natural join takes where year<2017

Explanation:
...

Explanation of Solution

c.

Query:

Select dept_name, max(salary) from instructor group by dept_name

Explanat...

Explanation of Solution

d.

Query:

Select min(max_sal) from (select dept_name, max(salary) as max_sal from instructor group by dept_name)

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Expert Solution & Answer

Chapter 3, Problem 11E

Explanation of Solution

a.

DISTINCT:

“DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

SELECT DISTINCT column_Name FROM table_Name;

Query:

Select distinct name from student natural join takes natural join course where course...

Explanation of Solution

b.

Query:

Select ID, name from student natural join takes except

Select ID, name from student natural join takes where year<2017

Explanation:
...

Explanation of Solution

c.

Query:

Select dept_name, max(salary) from instructor group by dept_name

Explanat...

Explanation of Solution

d.

Query:

Select min(max_sal) from (select dept_name, max(salary) as max_sal from instructor group by dept_name)

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 5

Expert Solution & Answer

Answer 6

Expert Solution & Answer

Answer 7

Chapter 3, Problem 11E

Explanation of Solution

a.

DISTINCT:

“DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

SELECT DISTINCT column_Name FROM table_Name;

Query:

Select distinct name from student natural join takes natural join course where course...

Explanation of Solution

b.

Query:

Select ID, name from student natural join takes except

Select ID, name from student natural join takes where year<2017

Explanation:
...

Explanation of Solution

c.

Query:

Select dept_name, max(salary) from instructor group by dept_name

Explanat...

Explanation of Solution

d.

Query:

Select min(max_sal) from (select dept_name, max(salary) as max_sal from instructor group by dept_name)

Answer 8

Chapter 3, Problem 11E

Explanation of Solution

a.

DISTINCT:

“DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

SELECT DISTINCT column_Name FROM table_Name;

Query:

Select distinct name from student natural join takes natural join course where course...

Answer 9

Chapter 3, Problem 11E

Explanation of Solution

a.

DISTINCT:

“DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

SELECT DISTINCT column_Name FROM table_Name;

Query:

Select distinct name from student natural join takes natural join course where course...

Answer 10

Explanation of Solution

b.

Query:

Select ID, name from student natural join takes except

Select ID, name from student natural join takes where year<2017

Explanation:
...

Answer 11

Explanation of Solution

b.

Query:

Select ID, name from student natural join takes except

Select ID, name from student natural join takes where year<2017

Explanation:
...

Answer 12

Explanation of Solution

c.

Query:

Select dept_name, max(salary) from instructor group by dept_name

Explanat...

Answer 13

Explanation of Solution

c.

Query:

Select dept_name, max(salary) from instructor group by dept_name

Explanat...

Answer 14

Explanation of Solution

d.

Query:

Select min(max_sal) from (select dept_name, max(salary) as max_sal from instructor group by dept_name)

Answer 15

Explanation of Solution

d.

Query:

Select min(max_sal) from (select dept_name, max(salary) as max_sal from instructor group by dept_name)

Answer 16

Expert Solution & Answer

Answer 17

Expert Solution & Answer

Answer 18

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Answer 19

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Concept explainers

Explanation of Solution

Explanation of Solution

b.

Query:

Select ID, name from student natural join takes except

Select ID, name from student natural join takes where year<2017

Explanation:
...

Explanation of Solution

c.

Query:

Select dept_name, max(salary) from instructor group by dept_name

Explanat...

Explanation of Solution

d.

Query:

Select min(max_sal) from (select dept_name, max(salary) as max_sal from instructor group by dept_name)

Want to see the full answer?

Chapter 3 Solutions

Concept explainers

Explanation of Solution

Explanation of Solution

b. Query: Select ID, name from student natural join takes except Select ID, name from student natural join takes where year<2017 Explanation:...

Explanation of Solution

c. Query: Select dept_name, max(salary) from instructor group by dept_name Explanat...

Explanation of Solution

d. Query: Select min(max_sal) from (select dept_name, max(salary) as max_sal from instructor group by dept_name)

Want to see the full answer?

Chapter 3 Solutions

b.

Query:

Select ID, name from student natural join takes except

Select ID, name from student natural join takes where year<2017

Explanation:
...

c.

Query:

Select dept_name, max(salary) from instructor group by dept_name

Explanat...

d.

Query:

Select min(max_sal) from (select dept_name, max(salary) as max_sal from instructor group by dept_name)