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Editorial Team
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Asked: 2026-05-13T18:07:33+00:00

My application has the data models a little bit complicated. I need to debug

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My application has the data models a little bit complicated. I need to debug a fetch request with different predicates.

Is there any fast way to see different results for different predicates? I am tired with changing only one predicate and I have to start again my navigation application with nearly 10 steps before.

An example of these predicates that I would like to see the results: 

item = %@
item = %@ AND quantity = %@
item = %@ OR (startdate >= %@ AND enddate <= %@)
etc...

As using Core Data, I can not see the database with its’ values to do some SELECTs.

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1 Answer

  1. Editorial Team

    You can add logic in your code to change the predicate and fetch again (maybe add a temporary button to trigger this and cycle through your various predicates).

    You may also be interested in viewing the data in your SQLite file. Check out this answer to How view data stored in Core Data?

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