For the nested-loop join to work, each of the two join attributes either has to be in sorted order or has to have an index built over it.

Name: For the nested-loop join to work, each of the two join attributes either has to be in sorted order or has to have an index built over it.
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The nested-loop join does not require sorted data or an index to work, but it can be slower than other join methods when dealing with large amounts of data.

For the Nested-Loop Join to Work, Each of the Two