SQL Interview Ques & ANS ๐ฅ
โค1
๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ผ๐ณ๐โ๐ ๐๐ฅ๐๐ ๐๐ ๐๐ด๐ฒ๐ป๐๐ ๐๐ผ๐๐ฟ๐๐ฒ โ ๐๐ฒ๐ฎ๐ฟ๐ป ๐๐ผ๐ ๐๐ต๐ฒ ๐๐๐๐๐ฟ๐ฒ ๐ผ๐ณ ๐๐ ๐ช๐ผ๐ฟ๐ธ๐๐
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โค1
Python Roadmap
|
|-- Fundamentals
| |-- Basics of Programming
| | |-- Introduction to Python
| | |-- Setting Up Development Environment (IDE: PyCharm, VSCode, etc.)
| |
| |-- Syntax and Structure
| | |-- Basic Syntax
| | |-- Variables and Data Types
| | |-- Operators and Expressions
|
|-- Control Structures
| |-- Conditional Statements
| | |-- If-Else Statements
| | |-- Elif Statements
| |
| |-- Loops
| | |-- For Loop
| | |-- While Loop
| |
| |-- Exception Handling
| | |-- Try-Except Block
| | |-- Finally Block
| | |-- Raise and Custom Exceptions
|
|-- Functions and Modules
| |-- Defining Functions
| | |-- Function Syntax
| | |-- Parameters and Arguments
| | |-- Return Statement
| |
| |-- Lambda Functions
| | |-- Syntax and Usage
| |
| |-- Modules and Packages
| | |-- Importing Modules
| | |-- Creating and Using Packages
|
|-- Object-Oriented Programming (OOP)
| |-- Basics of OOP
| | |-- Classes and Objects
| | |-- Methods and Constructors
| |
| |-- Inheritance
| | |-- Single and Multiple Inheritance
| | |-- Method Overriding
| |
| |-- Polymorphism
| | |-- Method Overloading (using default arguments)
| | |-- Operator Overloading
| |
| |-- Encapsulation
| | |-- Access Modifiers (Public, Private, Protected)
| | |-- Getters and Setters
| |
| |-- Abstraction
| | |-- Abstract Base Classes
| | |-- Interfaces (using ABC module)
|
|-- Advanced Python
| |-- File Handling
| | |-- Reading and Writing Files
| | |-- Working with CSV and JSON Files
| |
| |-- Iterators and Generators
| | |-- Creating Iterators
| | |-- Using Generators and Yield Statement
| |
| |-- Decorators
| | |-- Function Decorators
| | |-- Class Decorators
|
|-- Data Structures
| |-- Lists
| | |-- List Comprehensions
| | |-- Common List Methods
| |
| |-- Tuples
| | |-- Immutable Sequences
| |
| |-- Dictionaries
| | |-- Dictionary Comprehensions
| | |-- Common Dictionary Methods
| |
| |-- Sets
| | |-- Set Operations
| | |-- Set Comprehensions
|
|-- Libraries and Frameworks
| |-- Data Science
| | |-- NumPy
| | |-- Pandas
| | |-- Matplotlib
| | |-- Seaborn
| | |-- SciPy
| |
| |-- Web Development
| | |-- Flask
| | |-- Django
| |
| |-- Automation
| | |-- Selenium
| | |-- BeautifulSoup
| | |-- Scrapy
|
|-- Testing in Python
| |-- Unit Testing
| | |-- Unittest
| | |-- PyTest
| |
| |-- Mocking
| | |-- unittest.mock
| | |-- Using Mocks and Patches
|
|-- Deployment and DevOps
| |-- Containers and Microservices
| | |-- Docker (Dockerfile, Image Creation, Container Management)
| | |-- Kubernetes (Pods, Services, Deployments, Managing Python Applications on Kubernetes)
|
|-- Best Practices and Advanced Topics
| |-- Code Style
| | |-- PEP 8 Guidelines
| | |-- Code Linters (Pylint, Flake8)
| |
| |-- Performance Optimization
| | |-- Profiling and Benchmarking
| | |-- Using Cython and Numba
| |
| |-- Concurrency and Parallelism
| | |-- Threading
| | |-- Multiprocessing
| | |-- Asyncio
|
|-- Building and Distributing Packages
| |-- Creating Packages
| | |-- setuptools
| | |-- Creating environment setup
| |
| |-- Publishing Packages
| | |-- PyPI
| | |-- Versioning and Documentation
Best Resource to learn Python
Python Interview Questions with Answers
Freecodecamp Python ML Course with FREE Certificate
Python for Data Analysis
Python course for beginners by Microsoft
Scientific Computing with Python
Python course by Google
Python Free Resources
Please give us credits while sharing: -> https://t.iss.one/free4unow_backup
ENJOY LEARNING ๐๐
|
|-- Fundamentals
| |-- Basics of Programming
| | |-- Introduction to Python
| | |-- Setting Up Development Environment (IDE: PyCharm, VSCode, etc.)
| |
| |-- Syntax and Structure
| | |-- Basic Syntax
| | |-- Variables and Data Types
| | |-- Operators and Expressions
|
|-- Control Structures
| |-- Conditional Statements
| | |-- If-Else Statements
| | |-- Elif Statements
| |
| |-- Loops
| | |-- For Loop
| | |-- While Loop
| |
| |-- Exception Handling
| | |-- Try-Except Block
| | |-- Finally Block
| | |-- Raise and Custom Exceptions
|
|-- Functions and Modules
| |-- Defining Functions
| | |-- Function Syntax
| | |-- Parameters and Arguments
| | |-- Return Statement
| |
| |-- Lambda Functions
| | |-- Syntax and Usage
| |
| |-- Modules and Packages
| | |-- Importing Modules
| | |-- Creating and Using Packages
|
|-- Object-Oriented Programming (OOP)
| |-- Basics of OOP
| | |-- Classes and Objects
| | |-- Methods and Constructors
| |
| |-- Inheritance
| | |-- Single and Multiple Inheritance
| | |-- Method Overriding
| |
| |-- Polymorphism
| | |-- Method Overloading (using default arguments)
| | |-- Operator Overloading
| |
| |-- Encapsulation
| | |-- Access Modifiers (Public, Private, Protected)
| | |-- Getters and Setters
| |
| |-- Abstraction
| | |-- Abstract Base Classes
| | |-- Interfaces (using ABC module)
|
|-- Advanced Python
| |-- File Handling
| | |-- Reading and Writing Files
| | |-- Working with CSV and JSON Files
| |
| |-- Iterators and Generators
| | |-- Creating Iterators
| | |-- Using Generators and Yield Statement
| |
| |-- Decorators
| | |-- Function Decorators
| | |-- Class Decorators
|
|-- Data Structures
| |-- Lists
| | |-- List Comprehensions
| | |-- Common List Methods
| |
| |-- Tuples
| | |-- Immutable Sequences
| |
| |-- Dictionaries
| | |-- Dictionary Comprehensions
| | |-- Common Dictionary Methods
| |
| |-- Sets
| | |-- Set Operations
| | |-- Set Comprehensions
|
|-- Libraries and Frameworks
| |-- Data Science
| | |-- NumPy
| | |-- Pandas
| | |-- Matplotlib
| | |-- Seaborn
| | |-- SciPy
| |
| |-- Web Development
| | |-- Flask
| | |-- Django
| |
| |-- Automation
| | |-- Selenium
| | |-- BeautifulSoup
| | |-- Scrapy
|
|-- Testing in Python
| |-- Unit Testing
| | |-- Unittest
| | |-- PyTest
| |
| |-- Mocking
| | |-- unittest.mock
| | |-- Using Mocks and Patches
|
|-- Deployment and DevOps
| |-- Containers and Microservices
| | |-- Docker (Dockerfile, Image Creation, Container Management)
| | |-- Kubernetes (Pods, Services, Deployments, Managing Python Applications on Kubernetes)
|
|-- Best Practices and Advanced Topics
| |-- Code Style
| | |-- PEP 8 Guidelines
| | |-- Code Linters (Pylint, Flake8)
| |
| |-- Performance Optimization
| | |-- Profiling and Benchmarking
| | |-- Using Cython and Numba
| |
| |-- Concurrency and Parallelism
| | |-- Threading
| | |-- Multiprocessing
| | |-- Asyncio
|
|-- Building and Distributing Packages
| |-- Creating Packages
| | |-- setuptools
| | |-- Creating environment setup
| |
| |-- Publishing Packages
| | |-- PyPI
| | |-- Versioning and Documentation
Best Resource to learn Python
Python Interview Questions with Answers
Freecodecamp Python ML Course with FREE Certificate
Python for Data Analysis
Python course for beginners by Microsoft
Scientific Computing with Python
Python course by Google
Python Free Resources
Please give us credits while sharing: -> https://t.iss.one/free4unow_backup
ENJOY LEARNING ๐๐
โค1
Forwarded from Python Projects & Resources
๐ช๐ถ๐ฝ๐ฟ๐ผโ๐ ๐๐ฟ๐ฒ๐ฒ ๐๐ฎ๐๐ฎ ๐ฆ๐ฐ๐ถ๐ฒ๐ป๐ฐ๐ฒ ๐๐ฐ๐ฐ๐ฒ๐น๐ฒ๐ฟ๐ฎ๐๐ผ๐ฟ: ๐ฌ๐ผ๐๐ฟ ๐๐ฎ๐๐-๐ง๐ฟ๐ฎ๐ฐ๐ธ ๐๐ผ ๐ฎ ๐๐ฎ๐๐ฎ ๐๐ฎ๐ฟ๐ฒ๐ฒ๐ฟ!๐
Want to break into Data Science but donโt have a degree or years of experience? Wipro just made it easier than ever!๐จโ๐โจ๏ธ
With the Wipro Data Science Accelerator, you can start learning for FREEโno fancy credentials needed. Whether youโre a beginner or an aspiring data professional๐จโ๐ป๐
๐๐ข๐ง๐ค๐:-
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Ready to start? Explore Wiproโs Data Science Accelerator hereโ ๏ธ
Want to break into Data Science but donโt have a degree or years of experience? Wipro just made it easier than ever!๐จโ๐โจ๏ธ
With the Wipro Data Science Accelerator, you can start learning for FREEโno fancy credentials needed. Whether youโre a beginner or an aspiring data professional๐จโ๐ป๐
๐๐ข๐ง๐ค๐:-
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Ready to start? Explore Wiproโs Data Science Accelerator hereโ ๏ธ
SQL Joins: Unlock the Secrets Data Aficionado's
โ๏ธ SQL joins are the secret ingredients that bring your data feast together, they are the backbone of relational database querying, allowing us to combine data from multiple tables.
โ Let's explore the various types of joins and their applications:
1. INNER JOIN
- Returns only the matching rows from both tables
- Use case: Finding common data points, e.g., customers who have made purchases
2. LEFT JOIN
- Returns all rows from the left table and matching rows from the right table
- Use case: Retrieving all customers and their orders, including those who haven't made any purchases
3. RIGHT JOIN
- Returns all rows from the right table and matching rows from the left table
- Use case: Finding all orders and their corresponding customers, including orders without customer data
4. FULL OUTER JOIN
- Returns all rows from both tables, with NULL values where there's no match
- Use case: Comprehensive view of all data, identifying gaps in relationships
5. CROSS JOIN
- Returns the Cartesian product of both tables
- Use case: Generating all possible combinations, e.g., product variations
6. SELF JOIN
- Joins a table with itself
- Use case: Hierarchical data, finding relationships within the same table
๐ Advanced Join Techniques
1. UNION and UNION ALL
- Combines result sets of multiple queries
- UNION removes duplicates, UNION ALL keeps them
- Use case: Merging data from similar structures
2. Joins with NULL Checks
- Useful for handling missing data or exclusions
๐ก SQL Best Practices for Optimal Performance
1. Use Appropriate Indexes : Create indexes on join columns and frequently filtered fields.
2. Leverage Subqueries: Simplify complex queries and improve readability.
3. Utilize Common Table Expressions (CTEs): Enhance query structure and reusability.
4. Employ Window Functions: For advanced analytics without complex joins.
5. Optimize Query Plans: Analyze and tune execution plans for better performance.
6. Master Regular Expressions: For powerful pattern matching and data manipulation.
โ๏ธ SQL joins are the secret ingredients that bring your data feast together, they are the backbone of relational database querying, allowing us to combine data from multiple tables.
โ Let's explore the various types of joins and their applications:
1. INNER JOIN
- Returns only the matching rows from both tables
- Use case: Finding common data points, e.g., customers who have made purchases
2. LEFT JOIN
- Returns all rows from the left table and matching rows from the right table
- Use case: Retrieving all customers and their orders, including those who haven't made any purchases
3. RIGHT JOIN
- Returns all rows from the right table and matching rows from the left table
- Use case: Finding all orders and their corresponding customers, including orders without customer data
4. FULL OUTER JOIN
- Returns all rows from both tables, with NULL values where there's no match
- Use case: Comprehensive view of all data, identifying gaps in relationships
5. CROSS JOIN
- Returns the Cartesian product of both tables
- Use case: Generating all possible combinations, e.g., product variations
6. SELF JOIN
- Joins a table with itself
- Use case: Hierarchical data, finding relationships within the same table
๐ Advanced Join Techniques
1. UNION and UNION ALL
- Combines result sets of multiple queries
- UNION removes duplicates, UNION ALL keeps them
- Use case: Merging data from similar structures
2. Joins with NULL Checks
- Useful for handling missing data or exclusions
๐ก SQL Best Practices for Optimal Performance
1. Use Appropriate Indexes : Create indexes on join columns and frequently filtered fields.
2. Leverage Subqueries: Simplify complex queries and improve readability.
3. Utilize Common Table Expressions (CTEs): Enhance query structure and reusability.
4. Employ Window Functions: For advanced analytics without complex joins.
5. Optimize Query Plans: Analyze and tune execution plans for better performance.
6. Master Regular Expressions: For powerful pattern matching and data manipulation.
โค1
Forwarded from Python Projects & Resources
๐๐ถ๐ฑ๐ฑ๐ฒ๐ป ๐๐ฒ๐บ ๐ณ๐ผ๐ฟ ๐๐ฟ๐ฒ๐ฒ ๐๐ผ๐๐ฟ๐๐ฒ๐ ๐ณ๐ฟ๐ผ๐บ ๐ ๐๐ง, ๐๐ฎ๐ฟ๐๐ฎ๐ฟ๐ฑ & ๐ฆ๐๐ฎ๐ป๐ณ๐ผ๐ฟ๐ฑ!๐
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Still searching for quality learning resources?๐
What if I told you thereโs a platform offering free full-length courses from top universities like MIT, Stanford, and Harvard โ and most people have never even heard of it? ๐คฏ
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Donโt skip this chanceโ ๏ธ
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Essential Skills to Master for Using Generative AI
1๏ธโฃ Prompt Engineering
โ๏ธ Learn how to craft clear, detailed prompts to get accurate AI-generated results.
2๏ธโฃ Data Literacy
๐ Understand data sources, biases, and how AI models process information.
3๏ธโฃ AI Ethics & Responsible Usage
โ๏ธ Know the ethical implications of AI, including bias, misinformation, and copyright issues.
4๏ธโฃ Creativity & Critical Thinking
๐ก AI enhances creativity, but human intuition is key for quality content.
5๏ธโฃ AI Tool Familiarity
๐ Get hands-on experience with tools like ChatGPT, DALLยทE, Midjourney, and Runway ML.
6๏ธโฃ Coding Basics (Optional)
๐ป Knowing Python, SQL, or APIs helps customize AI workflows and automation.
7๏ธโฃ Business & Marketing Awareness
๐ข Leverage AI for automation, branding, and customer engagement.
8๏ธโฃ Cybersecurity & Privacy Knowledge
๐ Learn how AI-generated data can be misused and ways to protect sensitive information.
9๏ธโฃ Adaptability & Continuous Learning
๐ AI evolves fastโstay updated with new trends, tools, and regulations.
Master these skills to make the most of AI in your personal and professional life! ๐ฅ
Free Generative AI Resources: https://whatsapp.com/channel/0029VazaRBY2UPBNj1aCrN0U
1๏ธโฃ Prompt Engineering
โ๏ธ Learn how to craft clear, detailed prompts to get accurate AI-generated results.
2๏ธโฃ Data Literacy
๐ Understand data sources, biases, and how AI models process information.
3๏ธโฃ AI Ethics & Responsible Usage
โ๏ธ Know the ethical implications of AI, including bias, misinformation, and copyright issues.
4๏ธโฃ Creativity & Critical Thinking
๐ก AI enhances creativity, but human intuition is key for quality content.
5๏ธโฃ AI Tool Familiarity
๐ Get hands-on experience with tools like ChatGPT, DALLยทE, Midjourney, and Runway ML.
6๏ธโฃ Coding Basics (Optional)
๐ป Knowing Python, SQL, or APIs helps customize AI workflows and automation.
7๏ธโฃ Business & Marketing Awareness
๐ข Leverage AI for automation, branding, and customer engagement.
8๏ธโฃ Cybersecurity & Privacy Knowledge
๐ Learn how AI-generated data can be misused and ways to protect sensitive information.
9๏ธโฃ Adaptability & Continuous Learning
๐ AI evolves fastโstay updated with new trends, tools, and regulations.
Master these skills to make the most of AI in your personal and professional life! ๐ฅ
Free Generative AI Resources: https://whatsapp.com/channel/0029VazaRBY2UPBNj1aCrN0U
โค1
๐ฏ ๐๐ฅ๐๐ ๐๐ผ๐๐ฟ๐๐ฒ๐ ๐๐ผ ๐ฆ๐๐ฎ๐ฟ๐ ๐ฌ๐ผ๐๐ฟ ๐๐ฎ๐๐ฎ ๐๐ป๐ฎ๐น๐๐๐ถ๐ฐ๐ ๐๐ฎ๐ฟ๐ฒ๐ฒ๐ฟ ๐ถ๐ป ๐ฎ๐ฌ๐ฎ๐ฑ!๐
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Power BI Scenario based Questions ๐๐
๐ Scenario 1:Question: Imagine you need to visualize year-over-year growth in product sales. What approach would you take to calculate and present this information effectively in Power BI?
Answer: To visualize year-over-year growth in product sales, I would first calculate the sales for each product for the current year and the previous year using DAX measures in Power BI. Then, I would create a line chart visual where the x-axis represents the months or quarters, and the y-axis represents the sales amount. I would plot two lines on the chart, one for the current year's sales and one for the previous year's sales, allowing stakeholders to easily compare the growth trends over time.
๐ Scenario 2: Question: You're working with a dataset that requires extensive data cleaning and transformation before analysis. Describe your process for cleaning and preparing the data in Power BI, ensuring accuracy and efficiency.
Answer: For cleaning and preparing the dataset in Power BI, I would start by identifying and addressing missing or duplicate values, outliers, and inconsistencies in data formats. I would use Power Query Editor to perform data cleaning operations such as removing null values, renaming columns, and applying transformations like data type conversion and standardization. Additionally, I would create calculated columns or measures as needed to derive new insights from the cleaned data.
๐ Scenario 3: Question: Your organization wants to incorporate real-time data updates into their Power BI reports. How would you set up and manage live data connections in Power BI to ensure timely insights?
Answer: To incorporate real-time data updates into Power BI reports, I would utilize Power BI's streaming datasets feature. I would set up a data streaming connection to the source system, such as a database or API, and configure the dataset to receive real-time data updates at specified intervals. Then, I would design reports and visuals based on the streaming dataset, enabling stakeholders to view and analyze the latest data as it is updated in real-time.
โก Scenario 4: Question: You've noticed that your Power BI reports are taking longer to load and refresh than usual. How would you diagnose and address performance issues to optimize report performance?
Answer: If Power BI reports are experiencing performance issues, I would first identify potential bottlenecks by analyzing factors such as data volume, query complexity, and visual design. Then, I would optimize report performance by applying techniques such as data model optimization, query optimization, and visualization best practices.
๐ Scenario 1:Question: Imagine you need to visualize year-over-year growth in product sales. What approach would you take to calculate and present this information effectively in Power BI?
Answer: To visualize year-over-year growth in product sales, I would first calculate the sales for each product for the current year and the previous year using DAX measures in Power BI. Then, I would create a line chart visual where the x-axis represents the months or quarters, and the y-axis represents the sales amount. I would plot two lines on the chart, one for the current year's sales and one for the previous year's sales, allowing stakeholders to easily compare the growth trends over time.
๐ Scenario 2: Question: You're working with a dataset that requires extensive data cleaning and transformation before analysis. Describe your process for cleaning and preparing the data in Power BI, ensuring accuracy and efficiency.
Answer: For cleaning and preparing the dataset in Power BI, I would start by identifying and addressing missing or duplicate values, outliers, and inconsistencies in data formats. I would use Power Query Editor to perform data cleaning operations such as removing null values, renaming columns, and applying transformations like data type conversion and standardization. Additionally, I would create calculated columns or measures as needed to derive new insights from the cleaned data.
๐ Scenario 3: Question: Your organization wants to incorporate real-time data updates into their Power BI reports. How would you set up and manage live data connections in Power BI to ensure timely insights?
Answer: To incorporate real-time data updates into Power BI reports, I would utilize Power BI's streaming datasets feature. I would set up a data streaming connection to the source system, such as a database or API, and configure the dataset to receive real-time data updates at specified intervals. Then, I would design reports and visuals based on the streaming dataset, enabling stakeholders to view and analyze the latest data as it is updated in real-time.
โก Scenario 4: Question: You've noticed that your Power BI reports are taking longer to load and refresh than usual. How would you diagnose and address performance issues to optimize report performance?
Answer: If Power BI reports are experiencing performance issues, I would first identify potential bottlenecks by analyzing factors such as data volume, query complexity, and visual design. Then, I would optimize report performance by applying techniques such as data model optimization, query optimization, and visualization best practices.
โค1
๐ฒ ๐ฅ๐ฒ๐ฎ๐น-๐ช๐ผ๐ฟ๐น๐ฑ ๐ฆ๐ค๐ ๐ฃ๐ฟ๐ผ๐ท๐ฒ๐ฐ๐๐ ๐๐ผ ๐๐ผ๐ผ๐๐ ๐ฌ๐ผ๐๐ฟ ๐๐ป๐ฎ๐น๐๐๐ถ๐ฐ๐ ๐ฃ๐ผ๐ฟ๐๐ณ๐ผ๐น๐ถ๐ผ (๐๐ฅ๐๐ ๐๐ฎ๐๐ฎ๐๐ฒ๐๐!)๐
๐ฏ Want to level up your SQL skills with real business scenarios?๐
These 6 hands-on SQL projects will help you go beyond basic SELECT queries and practice what hiring managers actually care about๐จโ๐ป๐
๐๐ข๐ง๐ค๐:-
https://pdlink.in/40kF1x0
Save this post โ even completing 1 project can power up your SQL profile!โ ๏ธ
๐ฏ Want to level up your SQL skills with real business scenarios?๐
These 6 hands-on SQL projects will help you go beyond basic SELECT queries and practice what hiring managers actually care about๐จโ๐ป๐
๐๐ข๐ง๐ค๐:-
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Data Analytics Roadmap
1. Fundamentals of Statistics and Mathematics
- Understand descriptive statistics: mean, median, mode, variance, standard deviation.
- Basics of probability theory.
- Hypothesis testing and statistical inference.
- Some linear algebra and calculus basics (optional depending on needs).
2. Learn Excel and Google Sheets
- Master spreadsheet basics: formulas, functions, pivot tables.
- Data visualization with charts and graphs.
- Basic automation with macros and advanced formulas.
3. Programming for Data Analytics
- Choose Python or R as your main analytical programming language.
- Python libraries: pandas (data manipulation), numpy (numerical operations), matplotlib and seaborn (visualization).
- For R: dplyr, ggplot2.
- Use Jupyter Notebook (Python) or RStudio for coding environment.
4. Databases and SQL
- Understand relational databases and how data is stored.
- Learn SQL queries: SELECT, JOIN, GROUP BY, aggregation functions.
- Practice querying real databases.
5. Data Visualization Tools
- Learn tools like Tableau, Power BI, or Looker.
- Build interactive dashboards and reports.
- Understand best practices for effective visualization (color, simplicity, clarity).
6. Business Analytics Fundamentals
- Understand business processes and workflows.
- Define Key Performance Indicators (KPIs).
- Translate business questions into analytical problems.
7. Data Cleaning and Preprocessing
- Handle missing, inconsistent, and outlier data.
- Data transformation and normalization techniques.
- Use Python (pandas) or other tools to clean data effectively.
8. Basics of Machine Learning (Optional for Advanced Skills)
- Understand simple models: linear regression, classification.
- Use scikit-learn library in Python.
- Apply models for forecasting and clustering.
9. Hands-on Practice and Projects
- Work on real datasets from Kaggle or other platforms.
- Build a portfolio showcasing your data analysis projects.
- Participate in data competitions and hackathons.
10. Communication and Reporting
- Develop skills in presenting data insights clearly.
- Create compelling reports and presentations.
- Learn to work with stakeholders to tailor insights.
Share with credits: https://t.iss.one/sqlspecialist
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1. Fundamentals of Statistics and Mathematics
- Understand descriptive statistics: mean, median, mode, variance, standard deviation.
- Basics of probability theory.
- Hypothesis testing and statistical inference.
- Some linear algebra and calculus basics (optional depending on needs).
2. Learn Excel and Google Sheets
- Master spreadsheet basics: formulas, functions, pivot tables.
- Data visualization with charts and graphs.
- Basic automation with macros and advanced formulas.
3. Programming for Data Analytics
- Choose Python or R as your main analytical programming language.
- Python libraries: pandas (data manipulation), numpy (numerical operations), matplotlib and seaborn (visualization).
- For R: dplyr, ggplot2.
- Use Jupyter Notebook (Python) or RStudio for coding environment.
4. Databases and SQL
- Understand relational databases and how data is stored.
- Learn SQL queries: SELECT, JOIN, GROUP BY, aggregation functions.
- Practice querying real databases.
5. Data Visualization Tools
- Learn tools like Tableau, Power BI, or Looker.
- Build interactive dashboards and reports.
- Understand best practices for effective visualization (color, simplicity, clarity).
6. Business Analytics Fundamentals
- Understand business processes and workflows.
- Define Key Performance Indicators (KPIs).
- Translate business questions into analytical problems.
7. Data Cleaning and Preprocessing
- Handle missing, inconsistent, and outlier data.
- Data transformation and normalization techniques.
- Use Python (pandas) or other tools to clean data effectively.
8. Basics of Machine Learning (Optional for Advanced Skills)
- Understand simple models: linear regression, classification.
- Use scikit-learn library in Python.
- Apply models for forecasting and clustering.
9. Hands-on Practice and Projects
- Work on real datasets from Kaggle or other platforms.
- Build a portfolio showcasing your data analysis projects.
- Participate in data competitions and hackathons.
10. Communication and Reporting
- Develop skills in presenting data insights clearly.
- Create compelling reports and presentations.
- Learn to work with stakeholders to tailor insights.
Share with credits: https://t.iss.one/sqlspecialist
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