# mdasfaaruddinshareef

Lv10

## mdasfaaruddinshareef

51 Followers
0 Following
16 Helped

Published18701

### Subjects

Architecture84Project Management110History990Law15Management172English620Philosophy5Anthropology42Astronomy13Business658Marketing310Science738Electrical Engineering63Mechanical Engineering16Prealgebra50Sociology70Geography396Nursing102Psychology804Communications105Ethics61Information Technology1290Algebra148Precalculus14Engineering683Probability33Geometry31Computer Science1168Accounting670Biology587Mathematics188Statistics1670Physics4285Finance162Economics522Chemistry1826
Answer: The incorrect statement regarding hard drives is: "Solid-State drives ...
Answer: In modern power supplies (PSUs), the most commonly used rail is the +1...
Answer: Most modern motherboards use a 24-pin ATX power connector. This connec...
Answer: On a computer motherboard, the front panel header is a collection of p...
Answer: Lists, Tuples, and Sets in Python Python provides several data structu...

Tuples vs Sets in Python

Lists, Tuples, and Sets

In Python, we have several data structures available for organizing and storing data. Three of the most common are:

Lists

Tuples

Sets

Key Differences

Tuples and Sets each have their unique properties that make them different from Lists and from each other.

Tuples and their Immutability

Tuples are ordered, immutable sequences of elements, which can be of any data type. Once a Tuple is created, it cannot be modified.

Here is an example of creating a Tuple:

my_tuple = (1, 'apple', 3.14)

Accessing Tuple Elements

To access elements in a Tuple, use indexing, just like Lists:

print(my_tuple[1]) # Output: 'apple'

Sets and their Uniqueness

Sets are unordered collections of unique elements. They can only contain unique elements, and duplicates are discarded. Sets are useful when you want to ensure that there are no duplicate items or when you need to quickly perform set operations like union, intersection, or difference.

Here is an example of creating a Set:

my_set = {1, 2, 3, 3, 3, 'apple', 'apple'}

print(my_set) # Output: {1, 2, 3, 'apple'}

In the example above, note that 'apple' is only printed once, and the number '3' only appears once as well.

Accessing Set Elements

To access elements in a Set, you need to convert it to a List or iterate over it, since sets are unordered collections and do not support indexing.

my_list = list(my_set)

print(my_list[0]) # Output (unpredictable): 1 or 2 or 3

Immutable: Cannot be changed after being created.

Efficient: Since Tuples cannot change, Python does not have to create a new object when an element is changed, making Tuples faster to access in certain cases.

Used in function arguments when you know the values should not be changed.

Unique items only.

Efficient for set operations.

Fast membership test thanks to the hash table data structure used by sets.

Common Operations

| Operation | Lists | Tuples | Sets | | ------------ | -------- | ------ | ------ | | Index access | Support | Support | Not supported | | Append | Support | Not supported | Not supported | | Insert | Support | Not supported | Not supported | | Remove | Support | Not supported | Support through discarding duplicates | | Membership | Support | Support | Support |

When to use what?

Use Tuples when the data should not change, and you require fast access to elements.

Use Sets if you need to check for membership, quickly find intersections, unions, and differences, or if you need an unordered data structure with unique items.

Use Lists if the data may be changed, and you need consistent order.

Answer: Tuples vs Sets in Python In Python, tuples and sets are distinct data ...

In a 200 words or less explain the differences between SQL and PL/SQL? Why do we need SQL in a procedural language?

2. Respond to the following in 100 words-APA Format and Cite work

SA

SQL, is a structured query language that is used to retrieve and manipulate data as well as create and modify objects in a database. There are some capabilities for logic in SQL statements such as case and decode statements, but it is very limited. PL/SQL is a procedural language that has many more logic options available such as if-else statements and for loops. However, PL/SQL isn't very useful without SQL to retrieve and manipulate the data. For instance, you can use SQL to retrieve a value from a table and based on the value; use an if-else statement to choose to update a value in another table or not. PL/SQL also has a few other features that make it more efficient than just SQL alone. One being that PL/SQL transmits multiple SQL statements at one time in a block whereas SQL sends each statement separately thus saving bandwidth. Another is that PL/SQL that is stored in the database as a program unit is stored in executable form and is cached in memory making it more efficient to run (Casteel, 2013, pp. 3-4).

Reference:

Casteel, 1. (2013). Oracle 11g: PL/SQL. programming. Boston, MA: Course Technology, Cengage Learning.

3. Respond to the following in 100 words-APA Format and Cite work

Structured Query Language (SQL) is used primarily to conduct various actions within a database. These actions are typically categorized as data manipulation (DML), data definition (DDL). querying, and transaction control. DML include

s actions like

Answer: Differences Between SQL and PL/SQL SQL (Structured Query Language) is ...
Answer: Key Differences Order of Operations: Stack: Last In, First Out (LIFO) ...
Answer: Polymorphism is a fundamental concept in object-oriented programming (...
Answer: To handle petty cash transactions, we need to make two journal entries...
Answer: Here are the answers to the questions along with the detailed explanat...
Answer: Taxation is the process by which a government collects financial contr...
Answer: To prepare the various budgets for Camden Company based on the given i...
Answer: Encryption is a crucial part of securing data, and it comes in two mai...
Answer: To calculate the total asset turnover ratio using the DuPont analysis ...
Answer: To find the total asset turnover ratio using the DuPont Analysis formu...
Answer: The DuPont Identity formula is: ROE = Profit Margin * Total Asset Turn...
Answer: To calculate the Return on Equity (ROE) using the DuPont formula, you ...
Answer: The correct breakdown of ROE (Return on Equity) according to the DuPon...
Answer: To analyze the trends in the given data, we'll focus on the changes in...
Answer: Gross Profit Margin: Definition: Gross Profit Margin is a financial me...
Answer: Cost-volume-profit (CVP) analysis and its associated tools, such as co...
Answer: Pythagoras' theorem is important for several reasons: Foundation of Ge...
Answer: True. The Laplace transform is a powerful tool for solving differentia...
Answer: Days' sales in inventory (DSI), average collection period (ACP), and d...
Sure, Pythagoras' theorem states that in a right-angled triangle, the square o...
To find the molar mass of the unknown substance, we can use the equation for f...
A production possibility curve (PPC), also known as a production possibility f...
Answer: To solve this problem, we'll use the retail inventory method to estima...
Answer: To calculate the molarity of the HCl (hydrochloric acid) solution, we ...
Answer: To calculate the molarity of the HCl (hydrochloric acid) solution, we ...