SQL Analyst · Cohorts · Retention · Dates
Building a cohort and measuring retention
Go from raw events to a retention matrix without double-counting an active account.
SQL Essentials
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Building a cohort and measuring retention is part of the complete programme: 38 lessons, 62 verifiable exercises and 8 published guided projects.
- Complete content with explained examples
- SQL simulator and expected result
- Detailed answer, common mistakes and challenge