SourCaPlacement OS

Targeted Campus Assessment Prep

Setting up coding workspace...

Loading problem statement, test cases, and compiler sandbox

SourCaPlacement OS

Targeted Campus Assessment Prep

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Synchronizing placement benchmarks & campus recruitment roadmaps

SourCa/ Technical Preparation Platform

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SourCa is an independent coding and assessment practice system designed from publicly available interview patterns. Not affiliated with or endorsed by any company.

INDEPENDENT PLATFORM

Practice Directory•

Game Play Analysis: First Login Date per Playersql

Relational Database Schema

Game Play Analysis: First Login Date per Player

Tables & Sample Fixtures

Table: Activity

player_id (int)	device_id (int)	event_date (date)	games_played (int)
1	2	2016-03-01	5
1	2	2016-05-02	6
2	3	2017-06-25	1
3	1	2016-03-02	0
3	4	2018-07-03	5

query.sql

Execution Output Result

Click 'Run & Verify Query' to test your SQL against the sample test fixture.

SourCaPlacement OS

Targeted Campus Assessment Prep

Setting up coding workspace...

Loading problem statement, test cases, and compiler sandbox

Practice Directory•

Game Play Analysis: First Login Date per Playersql

Relational Database Schema

Game Play Analysis: First Login Date per Player

Tables & Sample Fixtures

Table: Activity

player_id (int)	device_id (int)	event_date (date)	games_played (int)
1	2	2016-03-01	5
1	2	2016-05-02	6
2	3	2017-06-25	1
3	1	2016-03-02	0
3	4	2018-07-03	5

query.sql

Execution Output Result

Click 'Run & Verify Query' to test your SQL against the sample test fixture.