# Using Core Data Fetched Properties Across Separate Persistent Stores

DevFeed: [Using Core Data Fetched Properties Across Separate Persistent Stores](<https://devfeed.tech/articles/fetched-properties-useful-37497.md>)

Original publisher: [Read original article](<https://www.cimgf.com/2014/01/01/fetched-properties-useful/>)

Author: Marcus Zarra

Published: 2014-01-01T22:32:42Z

Content type: tutorial

Language: en

Sources: [Cocoa Is My Girlfriend](<https://devfeed.tech/sources/cocoa-is-my-girlfriend.md>)

Topics: [Database](<https://devfeed.tech/topics/database.md>), [Xcode](<https://devfeed.tech/topics/xcode.md>)

Tags: [core-data](<https://devfeed.tech/tags/core-data.md>), [properties](<https://devfeed.tech/tags/properties.md>), [uncategorized](<https://devfeed.tech/tags/uncategorized.md>), [xcode](<https://devfeed.tech/tags/xcode.md>)

## AI overview

This tutorial explains a Core Data use case for fetched properties: retrieving related metadata from a separate persistent store when relationships cannot span physically separate stores. It also describes how fetched properties are configured and notes that sorting them requires code because the Xcode editor does not provide sort criteria.

## Source excerpt

Core Data has a number of features and abilities that are not commonly used. Chief among those are fetched properties. In discussing them with a number of developers, most have never heard of them and those who have heard of them couldn't come up with a viable use case for them. To be honest, I [...]