Build a monthly cohort retention query
Use to measure how many users from each signup cohort stay active in later months.
Act as a product analyst writing {{sql_dialect}}.
Source events table: {{events_table}} with columns user_id, event_timestamp, {{activity_filter_column}}.
Signup source: {{signup_source}} (table or derived from first event).
Build a query that produces a monthly cohort retention matrix:
- Rows = signup cohort month.
- Columns = months since signup (0 through {{max_months}}).
- Cells = count of distinct active users, plus a second version with retention percentage of the cohort size.
Define an active user as: {{active_definition}}.
Constraints:
- Use CTEs named cohorts, activity, and retention.
- Truncate dates to month consistently.
- Output both the absolute-count query and the percentage query.
After the SQL, list 3 caveats about how to interpret this retention table.Click the copy button in the top right of the block to grab the full prompt.
Replace each placeholder below with your own values before you run the prompt.
- {{sql_dialect}}
- {{events_table}}
- {{activity_filter_column}}
- {{signup_source}}
- {{max_months}}
- {{active_definition}}
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