Subqueries

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Three Use Case Examples for SQL Subqueries

  • Article

There are many great tutorials on syntax, performance, and keywords for invoking subqueries. However, I wish to discover a tip highlighting selected SQL subquery use cases. Please briefly describe three SQL subquery use case examples. For each use case, cover how a subquery interacts with outer queries and the T-SQL for implementing the use case. Review excerpts from each example to show the value of implementing the use case.

2023-04-14

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Lots of FKs

In SQL Server 2025, what are the most outgoing and incoming FK references a table can have?

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