SQL Roadmap
SQL for Data Science & Analytics
Master SQL from the basics to advanced data analysis through practical queries, real-world datasets, interview questions, and industry-focused projects.
Introduction to SQL
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Databases & Tables
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
SQL Data Types
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
SELECT & FROM
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
WHERE Clause
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Operators in SQL
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
ORDER BY
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
LIMIT & OFFSET
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
DISTINCT
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Aliases
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Aggregate Functions
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
GROUP BY
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
HAVING
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
String Functions
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Date & Time Functions
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
CASE Statements
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
NULL Handling
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Constraints
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Primary & Foreign Keys
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
INSERT, UPDATE & DELETE
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
INNER JOIN
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
LEFT JOIN
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
RIGHT JOIN
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
FULL OUTER JOIN
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
SELF JOIN
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
CROSS JOIN
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Subqueries
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Correlated Subqueries
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
UNION & UNION ALL
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Common Table Expressions (CTEs)
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Recursive CTEs
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Window Functions
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
ROW_NUMBER, RANK & DENSE_RANK
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
LEAD & LAG
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
PARTITION BY
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Views
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Indexes
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Transactions
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Stored Procedures
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
SQL Query Optimization
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Advanced SQL Interview Questions
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
Real-World SQL Case Studies
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.
End-to-End SQL Projects
Practical explanations, SQL queries, real-world examples, problem-solving exercises, and interview-focused questions.