核心数据是否自动创建SQLite数据库文件？ [英] Does core data create a SQLite database file automatically?

问题描述

核心数据是否自动创建一个sqlite数据库？

   - （NSPersistentStoreCoordinator *）persistentStoreCoordinator 
 {
 if（__persistentStoreCoordinator ！= nil）{
 return __persistentStoreCoordinator; 
} 
 
 NSURL * storeURL = [[self applicationDocumentsDirectory] ​​
 URLByAppendingPathComponent：@Database.sqlite] 
  

解决方案

是的，该文件在应用程序的documents目录中创建。在模拟器开发过程中，你可以在模拟器文件夹中找到它（现在在Xcode 4.3的Xcode文件夹中移动到DerivedData），如果你想删除它，或者使用你的开发数据库来看你的应用程序一旦安装在设备上。 p>

does core data create a sqlite database automatically? if yes, why it's not visible?

- (NSPersistentStoreCoordinator *)persistentStoreCoordinator
{
if (__persistentStoreCoordinator != nil) {
    return __persistentStoreCoordinator;
}

NSURL *storeURL = [[self applicationDocumentsDirectory]   
URLByAppendingPathComponent:@"Database.sqlite"]

解决方案

Yes it does, the file is created in the app's documents directory. During development with the simulator you can find it in the simulator folder (now moved to DerivedData in your Xcode folder in Xcode 4.3) if you want to delete it or use your development database to see your app once it installed on a device.

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