Data Analytics
Perfect channel to learn Data Analytics Learn SQL, Python, Alteryx, Tableau, Power BI and many more For Promotions: @coderfun @love_data
Show more๐ Analytical overview of Telegram channel Data Analytics
Channel Data Analytics (@sqlspecialist) in the English language segment is an active participant. Currently, the community unites 109 681 subscribers, ranking 1 122 in the Technologies & Applications category and 2 340 in the India region.
๐ Audience metrics and dynamics
Since its creation on ะฝะตะฒัะดะพะผะพ, the project has demonstrated rapid growth, gathering an audience of 109 681 subscribers.
According to the latest data from 24 June, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by 584 over the last 30 days and by 71 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 2.76%. Within the first 24 hours after publication, content typically collects 0.68% reactions from the total number of subscribers.
- Post reach: On average, each post receives 3 024 views. Within the first day, a publication typically gains 743 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 8.
- Thematic interests: Content is focused on key topics such as row, sql, analytic, analyst, visualization.
๐ Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
โPerfect channel to learn Data Analytics
Learn SQL, Python, Alteryx, Tableau, Power BI and many more
For Promotions: @coderfun @love_dataโ
Thanks to the high frequency of updates (latest data received on 25 June, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Technologies & Applications category.
SELECT department_id, SUM(salary) AS total_salary FROM employees GROUP BY department_id;
Explanation:
GROUP BY department_id: This groups all rows in the employees table by their department.
SUM(salary): This calculates the total salary for each department.
The result will show the department_id along with the corresponding total salary.
Why use GROUP BY?
It allows you to analyze data at different levels of granularity (e.g., department, region) by summarizing data in a meaningful way.
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Hope it helps :)SELECT * FROM employees INNER JOIN departments ON employees.department_id = departments.department_id;
This will only return rows where an employee has a department.
LEFT JOIN: It returns all the rows from the left table, along with matching rows from the right table. If there is no match, NULL values will be returned for the right table.
Example:
SELECT * FROM employees LEFT JOIN departments ON employees.department_id = departments.department_id;
This will return all employees, even if they don't belong to any department (NULL will be returned for department-related columns).import pandas as pd
df = pd.read_csv('sales_data.csv')
df.drop_duplicates(inplace=True) # Remove duplicate rows
df.fillna(0, inplace=True) # Fill missing values with 0
print(df.head())
๐ก Tip: Always check for inconsistent spellings and incorrect date formats!
๐ Task 2: Analyzing Sales Trends
A company wants to know which months have the highest sales.
โ
Solution (Using SQL):
SELECT MONTH(SaleDate) AS Month, SUM(Quantity * Price) AS Total_Revenue
FROM Sales
GROUP BY MONTH(SaleDate)
ORDER BY Total_Revenue DESC;
๐ก Tip: Try adding YEAR(SaleDate) to compare yearly trends!
๐ Task 3: Creating a Business Dashboard
Your manager asks you to create a dashboard showing revenue by region, top-selling products, and monthly growth.
โ
Solution (Using Power BI / Tableau):
๐ Add KPI Cards to show total sales & profit
๐ Use a Line Chart for monthly trends
๐ Create a Bar Chart for top-selling products
๐ Use Filters/Slicers for better interactivity
๐ก Tip: Keep your dashboards clean, interactive, and easy to interpret!
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Hope it helps :)import pandas as pd df = pd.read_csv('data.csv') print(df.head())
โ
NumPy โ Used for handling numerical data and performing complex calculations. It provides support for multi-dimensional arrays and efficient mathematical operations.
๐ Example: Creating an array and performing basic operations:
import numpy as np arr = np.array([10, 20, 30]) print(arr.mean()) # Calculates the average
โ
Matplotlib & Seaborn โ These are used for creating visualizations like line graphs, bar charts, and scatter plots to understand trends and patterns in data.
๐ Example: Creating a basic bar chart:
import matplotlib.pyplot as plt plt.bar(['A', 'B', 'C'], [5, 7, 3]) plt.show()
โ
Scikit-Learn โ A must-learn library if you want to apply machine learning techniques like regression, classification, and clustering on your dataset.
โ
OpenPyXL โ Helps in automating Excel reports using Python by reading, writing, and modifying Excel files.
๐ก Challenge for You!
Try writing a Python script that:
1๏ธโฃ Reads a CSV file
2๏ธโฃ Cleans missing data
3๏ธโฃ Creates a simple visualization
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Hope it helps :)
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