Hiring funnel conversion, time-to-fill, regrettable attrition, comp-band analysis, manager span-of-control, engagement scorecards — the SQL patterns People Analytics teams write against an HRIS (Workday / BambooHR / Rippling). Coming soon.
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5 tables in a star schema
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Graduated hints, not just pass/fail
Stage-to-stage conversion, time-to-fill, source-of-hire mix.
Voluntary vs involuntary, regrettable cohorts, tenure curves.
Pay-band drift, internal equity, merit-cycle modeling.
Span of control, manager effectiveness, engagement deltas.
Each mission is a real request from someone at the company. Difficulty increases as you go.
A realistic HRIS star schema with planted data quality issues. Coming soon.
●dimension tables ● fact tables
We’ll email when the path ships.
The seed data and mission content ship in a follow-up.
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