Answer by Maria Ines Parnisari for Difference between Hash, Merge and Loop join?
This article explains it well: https://www.linkedin.com/pulse/loop-hash-merge-join-types-eitan-blumin(Assume N and M are the number of rows in the two tables being joined).Nested Loop JoinComplexity:...
View ArticleAnswer by Marian for Difference between Hash, Merge and Loop join?
From MSDN, in the topic of Advanced Query Tuning Concepts:SQL Server employs three types of join operations:Nested loops joinsMerge joinsHash joinsIf one join input is small (fewer than 10 rows) and...
View ArticleDifference between Hash, Merge and Loop join?
In SQL Server you can specify the join hints:HASH JOIN MERGE JOINLOOP JOINWhat is the definition of those three join hints, and when should each be used?
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