SFMC SQL Practitioner Guides

Join patterns, Journey Builder queries, timeout avoidance, and subscriber scoping — short guides with copy-ready SQL for Query Studio and Automation Studio.

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How to Join _Sent to _Open in SFMC SQL — Learn the correct join grain between _Sent and _Open in Salesforce Marketing Cloud Query Studio — JobID, ListID, BatchID…
Journey Builder SQL Patterns with Data Views — SQL patterns for _Journey, _JourneyActivity, and email tracking views using TriggererSendDefinitionObjectID in Salesforc…
Avoiding Query Studio Timeouts on _Open and _Click — Practical SFMC SQL patterns to prevent Query Studio timeouts when querying _Open, _Click, and other high-volume tracking…
_Subscribers vs Ent._Subscribers in Child Business Units — When to query _Subscribers versus Ent._Subscribers in Salesforce Marketing Cloud child business unit SQL.
Using IsUnique on _Open and _Click — Understand the IsUnique flag on SFMC _Open and _Click Data Views for first-event metrics versus total event counts.