SQL Joins and SPARQL Equivalents: FILTER NOT EXISTS vs MINUS

·Aug 01, 2025 07:21 AM

Hi, all. I am putting together a table of SQL joins and SPARQL equivalents. For this particular example, would you use FILTER NOT EXISTS or MINUS in SPARQL?

2 comments

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SQL Joins and SPARQL Equivalents: FILTER NOT EXISTS vs MINUS

Veronika H.

·Aug 01, 2025 07:21 AM

Hi, all. I am putting together a table of SQL joins and SPARQL equivalents. For this particular example, would you use FILTER NOT EXISTS or MINUS in SPARQL?

2 comments

· Sorted by Oldest

Pete R.
·
I'd say FILTER NOT EXISTS is somewhat closer in semantics, likely to be more efficient, and more flexible (with MINUS the inner patterns must share an outer variable)
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Veronika H.
·
Thank you, Pete R., for your superfast response!

Pete R.
·
I'd say FILTER NOT EXISTS is somewhat closer in semantics, likely to be more efficient, and more flexible (with MINUS the inner patterns must share an outer variable)
👍2
Veronika H.
·
Thank you, Pete R., for your superfast response!