#Sql Group By Having

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#Sql Group By Having Reel by @softwareschool.co - ❓ Backend Interview Question

πŸ‘‰ Database Read Replica ante enti?

πŸ—„οΈ Primary DB
➑️ Writes (Insert/Update/Delete)

πŸ“– Read Replica
➑️ Only Reads
➑️ T
34.1K
SO
@softwareschool.co
❓ Backend Interview Question πŸ‘‰ Database Read Replica ante enti? πŸ—„οΈ Primary DB ➑️ Writes (Insert/Update/Delete) πŸ“– Read Replica ➑️ Only Reads ➑️ Traffic reduce πŸ”₯ Use case: High read traffic apps πŸ’― Follow @softwareschool πŸ’¬ Comment β€œREPLICA” for diagram
#Sql Group By Having Reel by @code.withdee - Comment "more" to get the Coding Interview Acronyms PDF directly in your DM πŸ“©

If you don't know these acronyms, interviews feel like another languag
3.9K
CO
@code.withdee
Comment β€œmore” to get the Coding Interview Acronyms PDF directly in your DM πŸ“© If you don’t know these acronyms, interviews feel like another language πŸ˜΅β€πŸ’« DSA, API, MVC, CI/CD, Big-O β€” recruiters expect you to understand them instantly. Save this reel before your next interview prep βœ… Follow @code.withdee for daily coding shortcuts πŸš€ Keywords : coding interview prep, software engineer interview, tech interview basics, coding acronyms, developer interview tips, dsa preparation, programming fundamentals, cs interview guide, coding concepts explained, developer roadmap, interview preparation india, computer science basics, backend concepts, api concepts, system design basics, coding notes, placement preparation, tech career tips Hashtags : #codinginterview #dsa #softwareengineer #learncoding #techcareers
#Sql Group By Having Reel by @smart_techies_hub - For Interview Preparation Please 
Contact : +91 7416272737

#smart_techies_hub #jsvariables #declaration #javascript #reactjs #react #interviewtips
187
SM
@smart_techies_hub
For Interview Preparation Please Contact : +91 7416272737 #smart_techies_hub #jsvariables #declaration #javascript #reactjs #react #interviewtips
#Sql Group By Having Reel by @softwareschool.co - ❓ Backend Interview Question
πŸ‘‰ Caching vs DB hit ela decide chestaru?
βœ… Read-heavy + slow query β†’ CACHE πŸ”₯
βœ… Rare updates + ok stale β†’ CACHE
❌ Freque
34.7K
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@softwareschool.co
❓ Backend Interview Question πŸ‘‰ Caching vs DB hit ela decide chestaru? βœ… Read-heavy + slow query β†’ CACHE πŸ”₯ βœ… Rare updates + ok stale β†’ CACHE ❌ Frequently changing + strict accuracy β†’ DB HIT Rule: Cache when speed matters and stale is ok βœ… DB hit when truth matters πŸ’― Follow @softwareschool πŸ’¬ Comment β€œCACHE” for checklist
#Sql Group By Having Reel by @witty.coder1 - Most devs use indexes. Very few design them properly.

The ESR rule is one of those things nobody teaches you in college - but interviewers love to as
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WI
@witty.coder1
Most devs use indexes. Very few design them properly. The ESR rule is one of those things nobody teaches you in college β€” but interviewers love to ask about it. Save this before your next interview. πŸ”– #softwareengineering #pythondeveloper #databases #sqlinterview #learntocode
#Sql Group By Having Reel by @techwithcp - πŸ“ 15 Most Asked SQL Questions (Backend/Dev Interviews)

Query-Based (1-8)

1️⃣ Find the second highest salary.
2️⃣ Count employees department-wise.
3
54.2K
TE
@techwithcp
πŸ“ 15 Most Asked SQL Questions (Backend/Dev Interviews) Query-Based (1–8) 1️⃣ Find the second highest salary. 2️⃣ Count employees department-wise. 3️⃣ Fetch users who haven’t placed any orders. 4️⃣ Get duplicate emails in a table. 5️⃣ Highest salary employee in each department. 6️⃣ Retrieve top 3 highest salaries. 7️⃣ Find employees who joined in the last 30 days. 8️⃣ Get users who placed more than 5 orders. Conceptual (9–15) 9️⃣ Difference between INNER JOIN and LEFT JOIN. πŸ”Ÿ What is indexing in SQL? 1️⃣1️⃣ DELETE vs TRUNCATE vs DROP. 1️⃣2️⃣ What are ACID properties? 1️⃣3️⃣ Primary Key vs Unique Key vs Foreign Key. 1️⃣4️⃣ What is normalization? 1️⃣5️⃣ What is a transaction in SQL? πŸ”₯ Preparing for a backend interview? These 15 SQL questions are asked in almost every Python, Java, Node, Go, or Backend Developer round. I’ve compiled 8 real query questions and 7 must-know conceptual questions that interviewers use to test your fundamentals, speed, and problem-solving ability. If you can answer all 15 β€” you are already ahead of 90% candidates. 🎯 Covers everything you need: βœ” SQL Joins βœ” Indexing βœ” ACID βœ” Keys βœ” Normalization βœ” Real-world query problems βœ” Performance-oriented questions Want the full answers + clean explanations? πŸ“© Comment β€œSQL” and I’ll DM you the entire PDF. #sql #sqlinterview #backenddeveloper #backendengineering #codinginterview #devinterview #pythonbackend #javabackend #programmingreels #techreels #learnsql #mysql #postgresql #softwareengineer #softwaredevelopment
#Sql Group By Having Reel by @softwareschool.co - ⚑ Frontend + Backend Connect cheyyadam (Fullstack)

βœ… Backend lo API create
βœ… Frontend lo axios/fetch call
βœ… CORS allow
βœ… Base URL .env
βœ… JWT token he
39.9K
SO
@softwareschool.co
⚑ Frontend + Backend Connect cheyyadam (Fullstack) βœ… Backend lo API create βœ… Frontend lo axios/fetch call βœ… CORS allow βœ… Base URL .env βœ… JWT token headers πŸ”₯ If this is clear = Fullstack start βœ… Follow @softwareschool πŸ’¬ Comment β€œCONNECT” for checklist
#Sql Group By Having Reel by @ycodeverse - Save this for placements πŸ‘‡
Most students ask me:
"Which DSA questions should I start with?"
Start with these 10.
These questions keep repeating acros
17.2K
YC
@ycodeverse
Save this for placements πŸ‘‡ Most students ask me:β€¨β€œWhich DSA questions should I start with?” Start with these 10. These questions keep repeating across coding interviews and are a must-do before placements. Follow for DSA & interview prep πŸš€ #dsa #codinginterview #placements #softwareengineering #interviewprep #leetcode #programming #engineeringstudents
#Sql Group By Having Reel by @codingvyrl - Software Engineer Interview Questions⬇️
---------------------------------------------------------------
1.What is your project title?
2.What real-worl
7.5K
CO
@codingvyrl
Software Engineer Interview Questions⬇️ --------------------------------------------------------------- 1.What is your project title? 2.What real-world problem does it solve? 3.Why did you choose this project? 4.What technologies did you use? 5.Why did you choose those technologies? 6.What was your exact role? 7.What was the most difficult part? 8.How did you fix a major bug in your project? 9.How does your system handle multiple users? 10.If I give you 3 months more, what will you improve? #softwareengineer #computerscience #tech #placement #codingvyrl
#Sql Group By Having Reel by @satywankumar11 - JavaScript Interview Questions #javaScript #webdevelopment #internship
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SA
@satywankumar11
JavaScript Interview Questions #javaScript #webdevelopment #internship
#Sql Group By Having Reel by @thespiritualfounder - Shallow copy is one of the most common JavaScript interview topics - and many developers misunderstand it.

When you copy primitive values, the value
687
TH
@thespiritualfounder
Shallow copy is one of the most common JavaScript interview topics β€” and many developers misunderstand it. When you copy primitive values, the value itself is duplicated. But when you copy objects or arrays, only the reference is copied. That’s why nested objects still share the same memory reference. Understanding this small detail can save you from unexpected bugs in real projects. In the next reel, we’ll break down Deep Copy and how it actually solves this problem. Save this for your next interview. #javascript #interviewpreparation #react #frontend #thespiritualfounder @thespiritualfounder
#Sql Group By Having Reel by @saakethlabs - Python Interview Question: Staticmethod vs Classmethod 🀯

Interviewers love asking this.

When should you use @staticmethod vs @classmethod?

Most an
172
SA
@saakethlabs
Python Interview Question: Staticmethod vs Classmethod 🀯 Interviewers love asking this. When should you use @staticmethod vs @classmethod? Most answers are surface-level. In this short: β€’ The real difference β€’ The inheritance test β€’ The answer interviewers want Comment β€œINTERVIEW READY” if you can answer this confidently now. #python #interviewprep #codinginterview #oop #programming #softwareengineer

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πŸ”₯ Highly Competitive

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