LeetCode SQL 50 & Company-Wise Questions
Practice verified SQL interview questions from 73+ top tech firms (Amazon, Google, Meta, Microsoft) and LeetCode SQL 50 problems, ranked by real candidate frequency.
Amazon
110 SQLMeta
83 SQLBloomberg
67 SQLMicrosoft
63 SQLtcs
19 SQLCognizant
14 SQLAccenture
10 SQLInfosys
8 SQLX
6 SQLDeloitte
6 SQLUber
5 SQLIBM
5 SQLPoint72
5 SQLGSN Games
5 SQLWalmart Labs
4 SQLOracle
3 SQLMeesho
3 SQLCapgemini
3 SQLWayfair
3 SQLZS Associates
3 SQLTikTok
2 SQLCisco
2 SQLDoorDash
2 SQLRoblox
2 SQLEPAM Systems
2 SQLTesla
2 SQLHashedIn
2 SQLHCL
2 SQLSpotify
2 SQLDell
2 SQLOzon
2 SQLWish
2 SQLPoshmark
2 SQLZoom
2 SQLAnalytics quotient
2 SQLApple
1 SQLAdobe
1 SQLYandex
1 SQLDE Shaw
1 SQLPhonePe
1 SQLPayPal
1 SQLIntuit
1 SQLAtlassian
1 SQLWix
1 SQLSAP
1 SQLSwiggy
1 SQLZomato
1 SQLYelp
1 SQLBarclays
1 SQLBooking.com
1 SQLMitsogo
1 SQLRobinhood
1 SQLPornhub
1 SQLLTIMindtree
1 SQLRevolut
1 SQLCoursera
1 SQLWarnermedia
1 SQLAudible
1 SQLOptum
1 SQLTwitch
1 SQLMAQ Software
1 SQLAon
1 SQLathenahealth
1 SQLDelhivery
1 SQLMindTree
1 SQLAcko
1 SQLFortinet
1 SQLciena
1 SQLClari
1 SQLMachine Zone
1 SQLNetsuite
1 SQLredbus
1 SQLMastering SQL for Technical & FAANG Interviews
Database querying is a decisive filter in technical interview loops for Data Engineers, Backend Developers, Data Scientists, and Solutions Architects. Interviewers at companies like Amazon, Google, Meta, and Bloomberg look beyond simple SELECT queries to test your mastery of relational algebra, window partitioning, query optimization, and edge-case handling (such as NULL values and duplicate keys).
Joins & Aggregations
Mastering INNER, LEFT, RIGHT, and FULL OUTER joins alongside GROUP BY, HAVING, and multi-condition filtering. Crucial for reporting queries and deduplication.
Window Functions
Dense ranking (DENSE_RANK), ROW_NUMBER, LAG, and LEAD over partitioned datasets. Required for calculating running totals, retention rates, and top-N rankings.
CTEs & Subqueries
Structuring complex queries cleanly with Common Table Expressions (WITH clauses), recursive CTEs for hierarchical tree structures, and correlated subqueries.
Frequently Asked Questions (LeetCode SQL)
What is LeetCode SQL 50 and how should I practice it?
LeetCode SQL 50 is a curated study plan covering the fundamental query patterns asked in modern technical interviews: basic selects, outer joins, aggregations, window functions, and subqueries. On LeetMap Pro, you can cross-reference these patterns with company-specific frequency lists to focus on problems actively being asked right now.
Which companies ask the most SQL questions?
According to verified candidate reports, Amazon leads with over 105 distinct SQL interview questions, followed by Google (90 questions), Meta (80 questions), Bloomberg (65 questions), and Microsoft (61 questions). Service-based and fintech firms like Cognizant, TCS, and Capital One also heavily prioritize SQL rounds.
Is LeetMap Pro free for company SQL interview preparation?
Yes, LeetMap Pro is 100% free with no paywall, registration barrier, or subscription. All questions are tagged with frequency, recency, difficulty, and direct links to practice environments.