Tech & code
Kanalga Telegram’da o‘tish
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Obunachilar
-124 soatlar
-217 kunlar
-10830 kunlar
Postlar arxiv
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❯ Python
cs50.harvard.edu/python/
❯ JavaScript
openclassrooms.com/en/courses/566…
❯ SQL
online.stanford.edu/courses/soe-yd…
❯ C
alison.com/course/diploma…
❯ C++
alison.com/course/c-plus-…
❯ Java
scaler.com/topics/course/…
❯ C#
freecodecamp.org/learn/foundati…
❯ HTML and CSS
openclassrooms.com/en/courses/526…
❯ React
v2.scrimba.com/learn-react-c0e
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Hi everyone
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Complete Roadmap map To learn SQL in one month
Week 1: Introduction and Basics
Day 1-2: Understanding Databases and SQL Syntax
•Study relational databases and SQL’s role in managing and querying data.
•Familiarize yourself with common SQL databases (e.g., MySQL, PostgreSQL, SQLite).
•Install a SQL environment or use a cloud-based platform like SQLBolt, Mode, or Google BigQuery to practice.
•Day 3-4: Basic SQL Commands
•Learn fundamental commands such as SELECT, FROM, and WHERE.
•Practice filtering data with conditions and combining them with AND, OR, and NOT operators.
•Complete exercises on selecting specific columns, using DISTINCT to remove duplicates, and sorting data with ORDER BY.
•Day 5-7: Basic Functions and Aggregate Functions
•Learn to use basic functions like COUNT, SUM, MIN, MAX, and AVG for aggregate data analysis.
•Practice grouping data with GROUP BY and filtering grouped data with HAVING.
Week 2: Intermediate Querying Techniques
•Day 8-10: Joining Tables
•Study types of joins (INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN).
•Understand primary and foreign keys and how they link tables in relational databases.
•Practice combining data from multiple tables with various joins.
• Day 11-12: Subqueries and Nested Queries
• Learn how to create subqueries within SELECT, WHERE, and FROM clauses.
• Practice writing queries that depend on other queries, focusing on readability and efficiency.
• Day 13-14: Set Operations
• Learn about set operators (UNION, INTERSECT, EXCEPT) to combine or filter query results.
• Practice combining results from different tables or queries and filtering results.
Week 3: Advanced SQL Concepts
• Day 15-16: Advanced Functions
• Study string functions (e.g., CONCAT, SUBSTRING, REPLACE), date functions (e.g., DATEADD, DATEDIFF), and mathematical functions.
• Learn about case statements and conditional logic to customize output.
• Day 17-18: Indexes and Performance Optimization
• Understand indexes, their purpose, and their effect on query performance.
• Study how to use EXPLAIN to analyze queries and optimize them for faster results.
• Day 19-21: Stored Procedures, Triggers, and Views
• Learn to create stored procedures to encapsulate SQL code for reusability.
• Study triggers to automate actions based on database events.
• Practice creating views to simplify complex queries for easier access.
Week 4: Final Project and Practical Applications
• Day 22-25: Case Study or Mini Project
• Choose a dataset (e.g., a sample sales database) and outline analysis goals.
• Write queries to extract insights, applying techniques from previous weeks.
• Ensure to include complex joins, subqueries, and aggregate analysis.
• Day 26-28: Error Handling and Best Practices
• Learn common SQL pitfalls and best practices for writing clean, efficient queries.
• Understand how to troubleshoot errors and optimize query structure.
• Day 29-30: Review and Practice
• Revisit complex topics and practice additional exercises.
• Take sample SQL assessments or timed quizzes to evaluate your progress.
By following this roadmap, you will build a solid SQL foundation within a month.
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Learn skills from Google, IBM and Meta
1. Google Data Analytics
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2. Google Project Management
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3. Google IT Support
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4. Google Digital Marketing & E-commerce
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5. Google IT Automation with Python
https://lnkd.in/d5mVf7TD
6. Google Business Intelligence
https://lnkd.in/dhf2Rvnx
7. Google Advanced Data Analytics
https://lnkd.in/dh3EfuAb
8. Google Cybersecurity
https://lnkd.in/dUB-QZRP
9. IBM Data Science
https://lnkd.in/dn8enWRk
10. Machine Learning
https://lnkd.in/diR_TFVq
11. IBM Data Analyst
https://lnkd.in/dw2FCJnw
12. Python for Everybody
https://lnkd.in/d8Adh_wB
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Clear all DSA rounds,
By mastering these 20 DSA patterns
1. Fast and Slow Pointer
- Cycle detection method
- O(1) space efficiency
- Linked list problems
2. Merge Intervals
- Sort and merge
- O(n log n) complexity
- Overlapping interval handling
3. Sliding Window
- Fixed/variable window
- O(n) time optimization
- Subarray/substring problems
4. Islands (Matrix Traversal)
- DFS/BFS traversal
- Connected component detection
- 2D grid problems
5. Two Pointers
- Dual pointer strategy
- Linear time complexity
- Array/list problems
6. Cyclic Sort
- Sorting in cycles
- O(n) time complexity
- Constant space usage
7. In-place Reversal of Linked List
- Reverse without extra space
- O(n) time efficiency
- Pointer manipulation technique
8. Breadth First Search
- Level-by-level traversal
- Uses queue structure
- Shortest path problems
9. Depth First Search
- Recursive/backtracking approach
- Uses stack (or recursion)
- Tree/graph traversal
10. Two Heaps
- Max and min heaps
- Median tracking efficiently
- O(log n) insertions
11. Subsets
- Generate all subsets
- Recursive or iterative
- Backtracking or bitmasking
12. Modified Binary Search
- Search in variations
- O(log n) time
- Rotated/specialized arrays
13. Bitwise XOR
- Toggle bits operation
- O(1) space complexity
- Efficient for pairing
14. Top 'K' elements
- Use heap/quickselect
- O(n log k) time
- Efficient selection problem
15. K-way Merge
- Merge sorted lists
- Min-heap based approach
- O(n log k) complexity
16. 0/1 Knapsack (Dynamic Programming)
- Choose or skip items
- O(n * W) complexity
- Maximize value selection
17. Unbounded Knapsack (Dynamic Programming)
- Unlimited item choices
- O(n * W) complexity
- Multiple item selection
18. Topological Sort (Graphs)
- Directed acyclic graph
- Order dependency resolution
- Uses DFS or BFS
19. Monotonic Stack
- Maintain increasing/decreasing stack
- Optimized for range queries
- O(n) time complexity
20. Backtracking
- Recursive decision-making
- Explore all possibilities
- Pruning with constraints
All the best 👍👍
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Get ready for a game changer! After registering, you’ll receive a call where we’ll guide and support you in making your dreams a reality. And yes, it’s absolutely free no charges, no hidden fees. Just register using the link below
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Google is hiring for Software Developers👇🏼
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Embark on your programming journey with Learntube's Python course backed by Google🚀
Designed for beginners, this affordable program equips you with fundamental Python skills to kickstart your coding adventure. 🐍
Highlights :-
📃Personalised Python Course
📰Verified Python Certificate recognised by Google and amazon .
🏅 3+ Industry projects and Much More.
All of these for just Rs. 399 with Life Time Access
Limited time offer⏰ .
Click on the Link Below 👇🏼
https://tinyurl.com/PythonXCoPD
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😱⚡ Only 200 seats left! ⚡😱
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💻 🚀 Free 120-Day Bootcamp: Become a Full Stack Developer! 🚀
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Endi mavjud! Telegram Tadqiqoti 2025 — yilning asosiy insaytlari 
