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Programming Resources | Python | Javascript | Artificial Intelligence Updates | Computer Science Courses | AI Books

Programming Resources | Python | Javascript | Artificial Intelligence Updates | Computer Science Courses | AI Books

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Programming Resources | Python | Javascript | Artificial Intelligence Updates | Computer Science Courses | AI Books (@programming_guide) Ingliz til segmentidagi kanali faol ishtirokchi. Hozirda hamjamiyat 56 126 obunachidan iborat bo'lib, Texnologiyalar & Aralashmalar toifasida 2 292-o'rinni va Hindiston mintaqasida 6 177-o'rinni egallagan.

📊 Auditoriya ko‘rsatkichlari va dinamika

невідомо sanasidan buyon loyiha tez o‘sib, 56 126 obunachiga ega bo‘ldi.

26 Avgust, 2026 dagi oxirgi ma’lumotlarga ko‘ra kanal barqaror faollikka ega. Oxirgi 30 kunda obunachilar soni -49 ga, so‘nggi 24 soatda esa 4 ga o‘zgardi va umumiy qamrov yuqori darajada qolmoqda.

  • Tasdiqlash holati: Tasdiqlanmagan
  • Jalb etish (ER): Auditoriya o‘rtacha 1.80% darajada jalb etiladi. Nashrdan keyingi dastlabki 24 soatda kontent odatda umumiy obunachilar sonining 0.72% ini tashkil etuvchi reaksiyalarni to‘playdi.
  • Post qamrovi: Har bir post o‘rtacha 1 012 marta ko‘riladi; birinchi sutkada odatda 402 ta ko‘rish yig‘iladi.
  • Reaksiyalar va o‘zaro ta’sir: Auditoriya faol: har bir postga o‘rtacha 2 ta reaksiya keladi.
  • Tematik yo‘nalishlar: Kontent algorithm, structure, stack, javascript, programming kabi asosiy mavzularga jamlangan.

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Muallif resursni shaxsiy fikrni ifoda etish maydoni sifatida ta’riflaydi:
Everything about programming for beginners * Python programming * Java programming * App development * Machine Learning * Data Science Managed by: @love_data

Yuqori yangilanish chastotasi (oxirgi ma’lumot 27 Avgust, 2026 da olingan) sababli kanal doimo dolzarb va katta qamrovli bo‘lib qoladi. Analitika auditoriya kontent bilan faol hamkorlik qilishini, uni Texnologiyalar & Aralashmalar toifasidagi muhim ta’sir nuqtasiga aylantirishini ko‘rsatadi.

56 126
Obunachilar
+424 soatlar
-447 kunlar
-4930 kunlar
Postlar arxiv
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✅ Python Conditional Statements if, elif, else! 🐍✨ Conditional statements allow your program to make decisions based on different conditions.
age = 20
if age >= 18:
    print("Eligible to vote")
1. What is an if Statement? Executes a block of code only if the condition is True.
age = 20
if age >= 18:
    print("You are an adult")
✔ Output: You are an adult 💡 If the condition is False, the code inside if is skipped. 2. if-else Statement: Used when you want one action if the condition is True and another if it's False.
age = 16
if age >= 18:
    print("Eligible to vote")
else:
    print("Not eligible to vote")
✔ Output: Not eligible to vote 3. if-elif-else Statement: Used to check multiple conditions.
marks = 75
if marks >= 90:
    print("Grade A")
elif marks >= 75:
    print("Grade B")
elif marks >= 60:
    print("Grade C")
else:
    print("Fail")
✔ Output: Grade B 4. Multiple Conditions with and:
age = 25
if age >= 18 and age <= 60:
    print("Working age")
✔ Output: Working age 5. Multiple Conditions with or:
day = "Saturday"
if day == "Saturday" or day == "Sunday":
    print("Weekend")
✔ Output: Weekend 6. Using not Operator:
is_logged_in = False
if not is_logged_in:
    print("Please log in")
✔ Output: Please log in 7. Nested if Statement: An if statement inside another if.
age = 25
has_license = True
if age >= 18:
    if has_license:
        print("You can drive")
✔ Output: You can drive 8. Short-Hand if Statement:
age = 20
if age >= 18: print("Adult")
✔ Output: Adult 9. Ternary One-Line if-else:
age = 16
message = "Adult" if age >= 18 else "Minor"
print(message)
✔ Output: Minor 💡 Useful for simple conditions in one line. 10. Practice Examples: ✔ Check even or odd
num = 8
if num % 2 == 0:
    print("Even")
else:
    print("Odd")
✔ Find the largest number
a = 10
b = 20
if a > b:
    print(a)
else:
    print(b)
✔ Check positive or negative
num = -5
if num >= 0:
    print("Positive")
else:
    print("Negative")
✔ Check password
password = "python123"
if password == "python123":
    print("Access Granted")
else:
    print("Access Denied")
💡 Conditional statements make your programs intelligent by allowing them to make decisions based on different situations. 💬 Tap ❤️ if this helped you learn Python!

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30. Write retention query in SQL? Example logic: Count users who appeared in month X and also in month X+1. WITH this_month AS ( SELECT user_id FROM users WHERE MONTH(join_date) = '2024-01' ), next_month AS ( SELECT user_id FROM users WHERE MONTH(join_date) = '2024-02' ) SELECT COUNT(*) FROM this_month WHERE user_id IN (SELECT user_id FROM next_month); 31. Write year-on-year growth in SQL? SELECT year, revenue, revenue - LAG(revenue) OVER (ORDER BY year) AS YoY_Growth FROM sales; 32. Write a query for cumulative sum in SQL? SELECT date, revenue, SUM(revenue) OVER (ORDER BY date) AS cumulative_revenue FROM sales; 33. Difference between Function and Stored Procedure? Functions return values and are used in expressions. Stored Procedures do not return values directly, can contain complex logic. 34. Do we use variable in views? No, variables cannot be used in views. 35. What are the limitations of views? Cannot use variables Can't call stored procedures Not always updatable Performance depends on underlying query Hope it helps :)

35 Important SQL Interview Questions with Detailed Answers: 1. Explain order of execution of SQL. Order: FROM → JOIN → ON → WHERE → GROUP BY → HAVING → SELECT → DISTINCT → ORDER BY → LIMIT. SQL queries are processed in this logical sequence, not the way they are written. 2. What is difference between WHERE and HAVING? WHERE filters rows before aggregation, while HAVING filters groups after aggregation. 3. What is the use of GROUP BY? GROUP BY aggregates data across rows with the same values in specified columns, commonly used with aggregate functions. 4. Explain all types of joins in SQL? INNER JOIN: Returns matching rows from both tables. LEFT JOIN: All rows from the left, matched rows from right. RIGHT JOIN: All rows from the right, matched rows from left. FULL JOIN: All rows from both, with NULLs where no match. SELF JOIN: Joins table to itself. CROSS JOIN: Cartesian product of both tables. 5. What are triggers in SQL? Triggers are procedural code executed automatically in response to certain events on a table or view (INSERT, UPDATE, DELETE). 6. What is stored procedure in SQL? A stored procedure is a set of SQL statements saved and executed on demand, useful for modularizing code. 7. Explain all types of window functions? RANK(): Gives rank with gaps. DENSE_RANK(): Ranks without gaps. ROW_NUMBER(): Unique row index. LEAD(): Access next row. LAG(): Access previous row. 8. What is difference between DELETE and TRUNCATE? DELETE: Row-wise deletion, can have WHERE clause, logs each row. TRUNCATE: Deletes all rows, faster, minimal logging, cannot rollback easily. 9. What is difference between DML, DDL and DCL? DML: Data Manipulation Language (SELECT, INSERT, UPDATE, DELETE). DDL: Data Definition Language (CREATE, ALTER, DROP). DCL: Data Control Language (GRANT, REVOKE). 10. What are aggregate functions? Functions that return a single value: SUM(), AVG(), COUNT(), MIN(), MAX(). 11. Which is faster: CTE or Subquery? Performance depends on context, but subqueries are sometimes faster as CTEs may be materialized. 12. What are constraints and types? Rules to maintain data integrity. Types: NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK, DEFAULT. 13. Types of Keys? Primary Key Foreign Key Unique Key Composite Key Candidate Key 14. Different types of Operators? Arithmetic: +, -, *, / Comparison: =, <>, >, <, >=, <= Logical: AND, OR, NOT Bitwise, LIKE, IN, BETWEEN 15. Difference between GROUP BY and WHERE? WHERE filters before aggregation. GROUP BY groups after filtering. 16. What are Views? Virtual tables based on SQL queries. They store only query definition. 17. What are different types of constraints? Same as Q12: NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK, DEFAULT. 18. What is difference between VARCHAR and NVARCHAR? VARCHAR: ASCII, 1 byte per char. NVARCHAR: Unicode, 2 bytes per char, supports multiple languages. 19. Similarity for CHAR and NCHAR? CHAR: Fixed-length ASCII. NCHAR: Fixed-length Unicode. 20. What are indexes and their types? Used for faster retrieval. Types: - Clustered - Non-clustered - Unique - Composite - Full-text 21. What is an index? Explain its types. Same as above. Indexes speed up queries by creating pointers to data. 22. List different types of relationships in SQL. One-to-One One-to-Many Many-to-Many 23. Differentiate between UNION and UNION ALL. UNION: Removes duplicates. UNION ALL: Includes duplicates. 24. How many types of clauses in SQL? Common clauses: SELECT, FROM, WHERE, GROUP BY, HAVING, ORDER BY, LIMIT, OFFSET, JOIN, ON. 25. What is the difference between UNION and UNION ALL in SQL? Same as Q23. 26. What are various types of relationships in SQL? Same as Q22. 27. Difference between Primary Key and Secondary Key? Primary Key: Uniquely identifies rows. Secondary Key: May not be unique, used for lookup. 28. What is the difference between WHERE and HAVING? Already answered in Q2. 29. Find second highest salary of an employee? SELECT MAX(salary) FROM employees WHERE salary < (SELECT MAX(salary) FROM employees);

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