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Join Operator Properties and Query Performance

Andy Brownsword takes a closer look at the big three join operators in SQL Server:

In the previous post I explained Join Operators in SQL Server. Whilst compiling that I dug a little deeper and came across a few interesting points I thought were worth sharing.

Let’s look at behaviour of the operators which may occur under specific conditions. Hopefully you find them as interesting as I did:

Click through for an interesting tidbit about nested loops joins, merge joins, and hash joins.