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1. #Backup sqlite database how to
2. #Backup sqlite database full
3. #Backup sqlite database code
4. #Backup sqlite database Offline

Given the aforementioned advantages, SQLite can be a great local data storage solution for a wide variety of scenarios. I think that the official SQLite website sums it up very well in the following words. SQLite works directly with local database files and doesn’t require a centralised server. It works really nicely for local data storage as it is lightweight, platform-independent, and no server process is needed.

#Backup sqlite database full

SQLite is a full relational database and is appropriate for storing large amounts of data. However, I believe that SQLite is one of the best choices that you can make. If your application is running natively on a mobile device as a Xamarin app you have a number of options such as the Preferences API or your own local data files. For a web app that has simple data requirements, Session Storage or Local Storage may be the most sensible choice. NET desktop app, a replicated SQL Server instance may be best. When choosing a solution for storing data locally on a device there are a number of considerations that you’ll need to make.įor a start, your options are usually somewhat constrained by the type of application you are developing and what operating systems you intend to support, amongst other things.įor an enterprise.

#Backup sqlite database how to

In this article, I am going to cover how to simplify your local data storage using the SQLite-net library. Whether you are storing small sets of data such as user preferences, or large volumes of relational data, SQLite can work for you. SQLite is an ideal solution for both simple and complex local data storage requirements.

#Backup sqlite database Offline

This also explains why events are "dangerous" to use in asynchronous code.Ĭonvention dictates that asynchronous methods should have the Async suffix.Many apps today need to store data locally on the device they are running on in order to allow the user to continue to perform useful functions while offline or when network connectivity is unreliable. The only exception to this are asynchronous event handlers since they have to adhere to the convention that event handlers return void.

#Backup sqlite database code

In case you ever want to re-use this code for a console application or just in a class library where you don't know the client, I would suggest making it async Task just for good measure. However once the main thread reaches its end, the application will exit regardless of whether or not your asynchronous code has finished as well. The reason for this is that a void method cannot be awaited (since it doesn't return a Task) and will in effect be a fire-and-forget kind of thing: it will start executing your asynchronous code on a separate thread and continue doing business as normal. From a recent answer of mine:Īsynchronous methods should return Task or Task, the former being for traditional void methods and the latter being for methods with T return type. Why are you hardcoding the filenames? This limits your re-use in case you want to expand it to other databases as well.ĬurrentDatabase.CopyAsync(, "MyMoney.bak", NameCollisionOption.ReplaceExisting) Īlways avoid async void. It's a rather convoluted way to say IStorageFile pickedFile = null, don't you think? Personally I don't see many people use default() for this purpose so I would stick with the more common way of initializing.Īwait _currentFolder.GetFileAsync("MyMoney.sqlite") For example the task of restoring a database is comprised of these subtasks: I would suggest that you create some intermediate methods instead of doing everything in one method. Var backupDatabase = await _currentFolder.GetFileAsync("MyMoney.bak") Īwait backupDatabase.CopyAsync(, "MyMoney.sqlite", Var currentDatabase = await _currentFolder.GetFileAsync("MyMoney.sqlite") ĬurrentDatabase.CopyAsync(, "MyMoney.bak",Īwait pickedFile.CopyAsync(, "MyMoney.sqlite", first make a backup of the current database file _settings.RestoreFileToken = pickedFileToken Var file = await picker.PickSingleFileAsync() Picker.SuggestedStartLocation = PickerLocationId.DocumentsLibrary I feel like this code could be simplified. In my restore command, I make a backup of the database file, which seems redundant. I then provide the ability to restore the backup database and overwrite the current database with the backup copy. I have an application that provides the user the ability to backup the local SQLite database to another location.