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並前往https://www.generacodice.com/en/articolo/4293973/creating-core-data-predicate-to-get-data-within-one-to-many-relationship

Creating Core Data predicate to get data within one-to-many ...

I would like a predicate that returns no items. NSPredicate *pred = [NSPredicate predicateWithFormat:@"!(ANY loaned.returnDate==nil)"];.

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