Market Analysis I
A medium-tier problem at 57% community acceptance, tagged with Database. Reported in interviews at Poshmark and 0 others.
Market Analysis I is a database problem that sits right in the medium difficulty sweet spot. It's been asked at Poshmark and shows up frequently enough in assessment reports that you can't afford to blank on it. The acceptance rate hovers around 57%, which means a meaningful chunk of candidates either misread the schema or botch the join logic. This is exactly the kind of problem where a wrong first instinct costs you ten minutes you don't have. If this one hits your live assessment and you freeze on the query structure, StealthCoder solves it invisibly in seconds and keeps you moving.
Companies that ask "Market Analysis I"
Market Analysis I is the kind of problem that decides whether you pass. StealthCoder reads the problem on screen and surfaces a working solution in under 2 seconds. Invisible to screen share. The proctor sees nothing. Made for the engineer who has done the work but might still blank with a webcam pointed at him.
Get StealthCoderMarket Analysis I tests whether you can read a real schema, understand temporal logic, and write clean SQL without overthinking it. The trap is assuming a simple join when the problem actually demands careful filtering on dates or product status. Most candidates either miss a WHERE clause condition or write redundant subqueries when a GROUP BY with aggregation works cleaner. The second pitfall is confusing what the output should actually represent: are you filtering products or dates or both. StealthCoder is your hedge if you hit this live and the query structure isn't clicking. It reads the schema off your screen and surfaces a working solution before you spiral into trial-and-error.
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Market Analysis I recycles across companies for a reason. It's medium-tier, and most candidates blank under the timer. StealthCoder is the hedge: an AI overlay invisible during screen share. It reads the problem and surfaces a working solution in under 2 seconds. Made for the engineer who has done the work but might still blank with a webcam pointed at him. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Market Analysis I interview FAQ
Is Market Analysis I actually a hard medium, or is 57% acceptance rate just variance?+
57% acceptance tells you the problem isn't trivial, but it's not a rare trick question either. Most failures come from schema misreads or botched joins, not algorithmic insight. If you can write clean SQL and map the schema correctly, you're in the top half.
What's the common SQL mistake on this one?+
Candidates often skip or misapply date filtering, or they join tables without checking product status first. Another frequent error: writing separate queries when one clean join handles it. Read the schema twice before you write the first SELECT.
Does Poshmark ask this in their actual interviews?+
Yes. Poshmark has reported this problem in their assessments. If you're interviewing there, treat it as live-interview-likely material, even though it's technically medium difficulty.
How much time should I budget for Market Analysis I?+
In a real assessment, you should have a working solution and basic spot-check within 8 to 12 minutes. If you're still debugging after 15 minutes, you've hit a conceptual snag and should reset your approach.
Is this Database problem about SQL performance, or just correctness?+
Correctness first, always. Once your query passes test cases, performance rarely matters on medium-difficulty database problems unless the input is massive. Focus on reading the schema and joining correctly.
Want the actual problem statement? View "Market Analysis I" on LeetCode →