# Tutorials and guides - Docs

Got a question which isn't answered below? Head to [the community forum](/questions.md) to let us know!

## Use cases

-   [How we found our activation metric (and how you can too)](/product-engineers/activation-metrics.md)
-   [CDP vs data warehouse: Which should you use and why](/blog/cdp-vs-data-warehouse.md)
-   [How we use the data warehouse at PostHog](/blog/data-warehouse-at-posthog.md)

## SQL

-   [The basics of SQL for analytics](/product-engineers/sql-for-analytics.md)
-   [Using SQL for advanced time and date filters](/tutorials/hogql-date-time-filters.md)

## Working with external sources

-   [How to set up Stripe reports](/tutorials/stripe-reports.md)
-   [How to set up Hubspot reports](/tutorials/hubspot-reports.md)
-   [How to set up Zendesk reports](/tutorials/zendesk-reports.md)
-   [How to set up Google Ads reports](/tutorials/google-ads-reports.md)
-   [How to query Supabase in PostHog](/tutorials/supabase-query.md)
-   [How to query a CSV in PostHog](/tutorials/csv-query.md)

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