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.