Core data not updating

However, we only showed you how to insert records into data store through Core Data API and left out the update & delete operations.

Note: If this is the first time you learn about Core Data, we recommend you to read the first tutorial.

Core Data is an Apple framework for Mac and i OS, which primarily allows you to persist data.

For a lot of people, it has a steep learning curve.

And each will come to be invaluable APIs to the serious Core Data developer.

In this first installment, we will be tackling the .

, while somewhat esoteric, were introduced to combat specific issues developers encounter with the framework.

An often-cited shortcoming of Core Data is its inability to efficiently update a large number of objects with a new value for one or more of its properties.

Traditional RDBMS implementations can effortlessly update a single column with a new value for thousands upon thousands of rows.

Poor performance, for example, may not be a Core Data problem, but instead due to a failure to observe standard Cocoa techniques of memory management or resource conservation.

If a user interface does not update properly, this may be due to an error in how you have configured Cocoa bindings.

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  1. Today I tried to wi-fi spots, one at a Restaurant that has Comcast for it's ISP, and one at a Barnes and Noble which AT&T, both times, I was able to connect to the internet just fine, but when I went and tried to enter a room in Chat-Web, I got this error.