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Editorial Team
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Asked: 2026-05-13T08:06:00+00:00

I am building an iPhone application which pulls a lot of information from an

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I am building an iPhone application which pulls a lot of information from an webservices that sends XML.

The problem now is that I am going to import a set of data that needs to import in 4 or 5 related tables.
It depends if the city exists in Core data.

The database looks like this: City – Club – track

The way how I would do it now is to put all the data in the database for each model.
So I would loop 4 or 5 times the data an put this in the database.
But in my head I think there has to be a better way.

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1 Answer

  1. Editorial Team

    One basic document is this Apple CoreData doc called “Efficiently importing data”.
    I am also building an app like yours (although on a Mac), and had implemented a very stupid importing routine which was very slow.
    Following the recommendation in that document made a huge difference and made importing much, much faster!
    Pay your attention in particular to the last section, “Implementing Find-or-Create Efficiently”.

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