Data Analysis Books | Python | SQL | Excel | Artificial Intelligence | Power BI | Tableau | AI Resources
Data Analysis Useful Resources #dataanalysis #dataanalysisbooks #sqlbooks #pythonbooks #tableau #powerbi #datavisualization For promotions: @coderfun
Show more📈 Analytical overview of Telegram channel Data Analysis Books | Python | SQL | Excel | Artificial Intelligence | Power BI | Tableau | AI Resources
Channel Data Analysis Books | Python | SQL | Excel | Artificial Intelligence | Power BI | Tableau | AI Resources (@learndataanalysis) in the English language segment is an active participant. Currently, the community unites 52 965 subscribers, ranking 3 247 in the Education category and 6 758 in the India region.
📊 Audience metrics and dynamics
Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 52 965 subscribers.
According to the latest data from 25 August, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by 460 over the last 30 days and by 5 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 5.67%. Within the first 24 hours after publication, content typically collects 1.22% reactions from the total number of subscribers.
- Post reach: On average, each post receives 3 002 views. Within the first day, a publication typically gains 646 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 7.
- Thematic interests: Content is focused on key topics such as analyst, |--, excel, visualization, analytic.
📝 Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
“Data Analysis Useful Resources
#dataanalysis
#dataanalysisbooks
#sqlbooks
#pythonbooks
#tableau
#powerbi
#datavisualization
For promotions: @coderfun”
Thanks to the high frequency of updates (latest data received on 26 August, 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 Education category.
orders table with the following columns:
driver_id
order_time
delivered_time
Write an SQL query to calculate the average waiting/delivery time (in minutes) for each delivery partner.
✅ SQL Solution (MySQL)
SELECT
driver_id,
AVG(TIMESTAMPDIFF(MINUTE, order_time, delivered_time)) AS avg_delivery_time
FROM orders
GROUP BY driver_id;
💡 Approach:
• Calculate the time difference between order_time and delivered_time.
• Convert the difference into minutes using TIMESTAMPDIFF().
• Group records by driver_id.
• Use AVG() to find the average delivery time for each delivery partner.
📚 Concepts Tested:
• Date & Time Functions
• GROUP BY
• Aggregate Functions (AVG)
• Business Metrics
React ♥️ for more real interview questions=SUM(), =AVERAGE()
| ├── =IF(), =AND(), =OR()
| ├── =VLOOKUP() / =HLOOKUP() / =XLOOKUP()
| ├── =INDEX() / =MATCH()
| └── =COUNT(), =COUNTA(), =COUNTIF()
|
|── *Charts & Graphs*
| ├── Bar / Line / Pie / Column
| ├── Combo Charts
| └── Sparklines
|
|── *Data Tools*
| ├── Data Validation
| ├── Remove Duplicates
| ├── Text to Columns
| └── Flash Fill
|
|── *Sorting & Filtering*
| ├── AutoFilter
| ├── Custom Sort
| └── Advanced Filter
|
|── *Pivot Tables & Pivot Charts*
| ├── Summarize large data
| ├── Drag & drop interface
| └── Slicers for filtering
|
|── *Tables & Named Ranges*
| ├── Excel Tables (Insert > Table)
| └── Named Ranges for easy reference
|
|── *Date & Time Functions*
| ├── =TODAY(), =NOW()
| ├── =DATEDIF(), =EDATE()
| └── =TEXT() for formatting
|
|── *Text Functions*
| ├── =LEFT(), =RIGHT(), =MID()
| ├── =LEN(), =FIND(), =SEARCH()
| └── =CONCAT() / =TEXTJOIN()
|
|── *Logical & Lookup Functions*
| ├── =IFERROR()
| ├── =CHOOSE()
| └── =SWITCH()
|
|── *Keyboard Shortcuts*
| ├── Ctrl + Arrow → Jump
| ├── Ctrl + Shift + L → Filter
| └── F2 → Edit Cell
|
|── *Macros & Automation*
| ├── Record Macros
| └── VBA (Visual Basic for Applications)
|
|── *Data Analysis Tools*
| ├── Goal Seek
| ├── Solver
| └── What-If Analysis
|
|── *Best Practices*
| ├── Use tables for dynamic data
| ├── Use comments & named ranges
| └── Avoid merged cells in data tables
|
|── END __
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