Complete Syllabus for Data Analytics interview:

SQL:
1. Basic   
- SELECT statements with WHERE, ORDER BY, GROUP BY, HAVING   
- Basic JOINS (INNER, LEFT, RIGHT, FULL)   
- Creating and using simple databases and tables

2. Intermediate   
- Aggregate functions (COUNT, SUM, AVG, MAX, MIN)   
- Subqueries and nested queries
- Common Table Expressions (WITH clause)   
- CASE statements for conditional logic in queries
3. Advanced   
- Advanced JOIN techniques (self-join, non-equi join)   
- Window functions (OVER, PARTITION BY, ROW_NUMBER, RANK, DENSE_RANK, lead, lag)   
- optimization with indexing   
- Data manipulation (INSERT, UPDATE, DELETE)

Python:
1. Basic   
- Syntax, variables, data types (integers, floats, strings, booleans)   
- Control structures (if-else, for and while loops)   
- Basic data structures (lists, dictionaries, sets, tuples)   
- Functions, lambda functions, error handling (try-except)   
- Modules and packages

2. Pandas & Numpy   
- Creating and manipulating DataFrames and Series   
- Indexing, selecting, and filtering data   
- Handling missing data (fillna, dropna)   
- Data aggregation with groupby, summarizing data   
- Merging, joining, and concatenating datasets

3. Basic Visualization   
- Basic plotting with Matplotlib (line plots, bar plots, histograms)   
- Visualization with Seaborn (scatter plots, box plots, pair plots)   
- Customizing plots (sizes, labels, legends, color palettes)   
- Introduction to interactive visualizations (e.g., Plotly)

Excel:
1. Basic   
- Cell operations, basic formulas (SUMIFS, COUNTIFS, AVERAGEIFS, IF, AND, OR, NOT & Nested Functions etc.)   
- Introduction to charts and basic data visualization   
- Data sorting and filtering   
- Conditional formatting

2. Intermediate   
- Advanced formulas (V/XLOOKUP, INDEX-MATCH, nested IF)   
- PivotTables and PivotCharts for summarizing data   
- Data validation tools   
- What-if analysis tools (Data Tables, Goal Seek)

3. Advanced   
- Array formulas and advanced functions   
- Data Model & Power Pivot
- Advanced Filter
- Slicers and Timelines in Pivot Tables   
- Dynamic charts and interactive dashboards

Power BI:
1. Data Modeling   
- Importing data from various sources   
- Creating and managing relationships between different datasets   
- Data modeling basics (star schema, snowflake schema)

2. Data Transformation   
- Using Power Query for data cleaning and transformation   
- Advanced data shaping techniques   
- Calculated columns and measures using DAX

3. Data Visualization and Reporting   - Creating interactive reports and dashboards   
- Visualizations (bar, line, pie charts, maps)   
- Publishing and sharing reports, scheduling data refreshes

Statistics Fundamentals: Mean, Median, Mode, Standard Deviation, Variance, Probability Distributions, Hypothesis Testing, P-values, Confidence Intervals, Correlation, Simple Linear Regression, Normal Distribution, Binomial Distribution, Poisson Distribution.

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Python WhatsApp Community: https://whatsapp.com/channel/0029VaiM08SDuMRaGKd9Wv0L

𝗠𝗮𝘀𝘁𝗲𝗿 𝗦𝗤𝗟 𝗳𝗼𝗿 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝘀, 𝗙𝗮𝘀𝘁!

Here are 10 must-know SQL concepts:

● Stored Procedure vs. Function
Procedures allow DML; functions handle calculations only.

● Clustered vs. Non-Clustered Index
Clustered sorts data physically; non-clustered creates pointers.

● DELETE vs. TRUNCATE
DELETE is row-specific; TRUNCATE clears all rows fast.

● WHERE vs. HAVING
WHERE filters rows; HAVING filters after GROUP BY.

● Primary Key vs. Unique Key
Primary is unique & non-null; Unique allows one null.

● JOIN Types
INNER, LEFT, RIGHT, FULL JOIN—combine tables in different ways.

● Normalization Forms
Minimizes redundancy and improves data integrity.

● ACID Properties
Ensures reliable transactions with Atomicity, Consistency, Isolation, Durability.

● Indexes
Speeds up data retrieval; careful use is key.

● Subqueries
Nest queries within queries for flexible data retrieval.

Master these, and you’re SQL-interview ready!

𝟲 𝗙𝗥𝗘𝗘 𝗬𝗼𝘂𝗧𝘂𝗯𝗲 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝘁𝗼 𝗞𝗶𝗰𝗸𝘀𝘁𝗮𝗿𝘁 𝗬𝗼𝘂𝗿 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 𝗖𝗮𝗿𝗲𝗲𝗿!😍

Want to break into Data Analytics but don’t know where to start?

These 6 FREE courses cover everything—from Excel, SQL, Python, and Power BI to Business Math & Statistics and Portfolio Projects! 📊

𝐋𝐢𝐧𝐤👇:-

https://pdlink.in/4kMSztw

📌 Save this now and start learning today!

𝗠𝗮𝘀𝘁𝗲𝗿 𝗦𝗼𝗳𝘁 𝗦𝗸𝗶𝗹𝗹𝘀 𝗳𝗼𝗿 𝗖𝗮𝗿𝗲𝗲𝗿 𝗦𝘂𝗰𝗰𝗲𝘀𝘀!😍

Want to stand out in your career?

Soft skills are just as important as technical expertise! 🌟

Here are 3 FREE courses to help you communicate, negotiate, and present with confidence

𝐋𝐢𝐧𝐤👇:-

https://pdlink.in/41V1Yqi

Tag someone who needs this boost! 🚀

Data Analysis Roadmap!

Don't know where to start your Data Analyst journey? Worry not! Here is a 3 month roadmap that coverts everything a beginner needs, with no prior coding experience!

This roadmap covers:

- Technical Skills: Step-by-step guides for Excel, BI tools (Power BI/Tableau), SQL, Python & Pandas

- Soft Skills: Tips for networking, LinkedIn optimization, and business fundamentals

- Assignments and Projects: Real-world applications each week to build your portfolio

- Interview Prep: Practical resources and mock projects to get you job-ready

If you’re ready to learn with structured weekly goals, free resources, and hands-on assignments, this roadmap is a great place to start!

𝗠𝗮𝘀𝘁𝗲𝗿 𝗦𝗤𝗟 𝗳𝗼𝗿 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 𝗶𝗻 𝗝𝘂𝘀𝘁 𝟭𝟰 𝗗𝗮𝘆𝘀!😍

Want to become a SQL pro in just 2 weeks?

SQL is a must-have skill for data analysts! 🎯

This step-by-step roadmap will take you from beginner to advanced 📍

𝐋𝐢𝐧𝐤👇:-

https://pdlink.in/3XOlgwf

📌 Follow this roadmap, practice daily, and take your SQL skills to the next level!

Preparing for a data science interview can be challenging, but with the right approach, you can increase your chances of success. Here are some tips to help you prepare for your next data science interview:

👉 1. Review the Fundamentals: Make sure you have a thorough understanding of the fundamentals of statistics, probability, and linear algebra. You should also be familiar with data structures, algorithms, and programming languages like Python, R, and SQL.

👉 2. Brush up on Machine Learning: Machine learning is a key aspect of data science. Make sure you have a solid understanding of different types of machine learning algorithms like supervised, unsupervised, and reinforcement learning.

👉 3. Practice Coding: Practice coding questions related to data structures, algorithms, and data science problems. You can use online resources like HackerRank, LeetCode, and Kaggle to practice.

👉 4. Build a Portfolio: Create a portfolio of projects that demonstrate your data science skills. This can include data cleaning, data wrangling, exploratory data analysis, and machine learning projects.

👉 5. Practice Communication: Data scientists are expected to effectively communicate complex technical concepts to non-technical stakeholders. Practice explaining your projects and technical concepts in simple terms.

👉 6. Research the Company: Research the company you are interviewing with and their industry. Understand how they use data and what data science problems they are trying to solve.

By following these tips, you can be well-prepared for your next data science interview. Good luck!