Assume we have to send some information from the application to our webserver and internet is not available on the device at a particular time. So instead of giving error to the user that internet is not available we can store the data to SQLite and send it later automatically when the internet is available. Feel free to leave your comments if you are having any troubles making the project. Also follow the steps carefully as the post is very long.
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How to sync between sqlite and remote ms sql server
In this blog I write tutorials and articles related to coding, app development, android etc. Hi there! I tried your code.
I was able to launch the app on my ADV on android studio and to save data in local on sqllite but I was not able to sync data from sqlite to my mysql server. Maybe I wrong something….
SQLite.Net, SQL.Net Extensions, Azure and Offline Sync'ing
What should I verify? I am still unable to find the problem. Data is getting saved only in sqlite. I have also changed the url to my php file. Fix following constants according to your hosting params. Thanks for the code, Its work on my localhost but why can not work when i am upload to cpanel server the data can not update can you tell me why sir??
I have a situation where I want to initialize my app with data from mysql only when the app is installed for the first time. The problem I run into however is that, when using volley in the onCreate of SQLiteOpenHelper class, the app starts before the network request completes. This results in blank screen for the first time. What can I do to make sure the UI only runs after network request is complete? Why is it not working in me?
Please someone help me. Probably you are rather making GET or other request. Check to ensure that you can insert records into your table through PHPMyadmin in the same way that the application does. I noticed that the script was trying to insert a new record with only the name field populated. In my testing, I could see that the app will not let you save records if the PHP file is not authenticating to the DB or if there are any problems with the SQL statement.
This helped me narrow the issue down to the actual database insert. Any chance you could assist in modifying your code to allow more information to be added? When I turn off the internet it saves well in sqlite, but when I start it stores me duplicate records in mysql. Dear Ruvany Valencio, Did you solve this method.
When i am offline Sqlite to datas entry and saved in listview successfully. When internet in connection on the values added in two times to mysql how to avoid duplicate.
Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Android bi-directional sqlite database synchronization. How are we doing? Please help us improve Stack Overflow. Take our short survey. Learn more. Sync in Android sqlite and sql server crud operation in two ways Ask Question. Asked 7 years, 2 months ago. Active 5 years, 5 months ago. Viewed 12k times. I am developing an android application which have sq lite db on my device server sql db on main server which sync them, with two identical same fields structure and fields name i need to develop synchronization between these db in 2 ways If I change database data in Android then It will change data on web server when i change data from sever then it should change data in android sync will run in 1 day automatically now the question is How do I sync those databases in Android?
Android bi-directional sqlite database synchronization i have found these article but does not help me. Syed Ali Syed Ali 1 1 gold badge 4 4 silver badges 14 14 bronze badges. DixitPatel what is this? Raj changes at the same time? Active Oldest Votes.
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There isn't anything built in to do this. There may be 3rd party sync libraries, but I cannot recommend any. Somebody else from the community may have experience with them to share. You can do basic sync by keeping track of the last sync from the specific client and querying for newer records on both ends. If your data doesn't have conflicts then this is easy: just copy the new ones from the web to your local database and the new ones from the local database to the web service.
Ask a question. Quick access. Search related threads. Remove From My Forums. Answered by:. Archived Forums A-B. NET development skills to build Windows Store apps. Sign in to vote. Wednesday, August 14, AM.
You will need to build this yourself or find a 3rd party one. Wednesday, August 14, PM. Hi FireDance, There isn't anything built in to do this. Hi Rob, Thank for understanding my problems.
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Basically, they need to manage a large list of items. Edit, delete, and so on. Once they get done modifying the "list" items, they will need to be synced over to the SQL Server database on the production server.
What would be the most reliable way to sync data between the databases? I'm also going to be storing small images for each item. Can I do this all via SQL? Or do I need to convert the SQLite database to another format? It's "in-proc", e.
NET You can have a look at the Sync Framework, it looks like it is exactly the kind of problem it is supposed to solve. Learn more. Asked 8 years, 10 months ago. Active 6 years, 1 month ago. Viewed 8k times. Kiquenet Thomas Thomas 41 1 1 silver badge 2 2 bronze badges. What is the reason you want to use SQLite? Active Oldest Votes. NET 4 instead?? Johann Blais Johann Blais 8, 6 6 gold badges 40 40 silver badges 61 61 bronze badges. One way or another it will.
Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I am creating a Android Application in Xamarin that uses Sqlite and I need the app to sync all the data from the sql server database to the sqlite database on the phone.
Are there any good references for doing this as far as tutorials or examples? One thing to mention is the sqlite database for the phone would have the same schema as the server. If you are wanting to roll your own then you probably want to create your own Web Api in front of the SQL server to handle CRUD commands, and inititate that from within your app. We've done this, but there's no quick pointer, it all depends on where your 'master' data source is, how many clients, conflict management etc.
How are we doing? Please help us improve Stack Overflow. Take our short survey. Learn more. Using Xamarin. Android I want to sync sqlite with sql server Ask Question.
Asked 4 years, 5 months ago. Active 4 years, 5 months ago. Viewed 4k times. I would recommend taking a look into Azure Mobile Services and Mobile apps to handle this: github.
James I do have a question on that. Don't I have to pay for the azure service? The database I'm pulling from is hosted on my own network server. Active Oldest Votes. It's a huge topic. Andy Flisher Andy Flisher 1 1 silver badge 8 8 bronze badges. Well the server has to be our own.
Would that make it simpler? Not really, you need 'something' a sync engine, or service to do all the work, the comparison between data, when last modified, when conflicted etc, and I don't think that really exists unless you create your own. Something like - sqlite-sync. Well the direction of the sync would be one way. You still need 'something' to do that, if it's one way then easier to do in code, but even then you have to identify which records have changed, are they inserts, updates, or deletes at the other end, and even then 'how' are you going to talk to the SQL Server - is it on the same network?
If not you need to create a web api to expose it safely. Well, at it's simplest, in my local sqllite table I'd add three fields isNew, isModified, and isDeleted, default to a value of 0 and then set to 1 when you add, edit, or delete a record. Sign up or log in Sign up using Google. Sign up using Facebook.
Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.Since even today it cannot be assumed an Internet connection will always be available to the device an alternative to the always online model needs to be provided. In the real world there are still a lot of places with spotty coverage, slow data service, overloaded cells and expensive metered service plans.
How to sync between sqlite and remote ms sql server
One solution is to design the apps to function on devices that are only occasionally connected and use a local database to store data. This of course means that some method of data exchange will be needed to move data back and forth between the device and the server. While this may sound simple enough the reality is very different.
Until recently the options available to solve this issue have been few, none too good or non-existent. So if the occasionally-connected model is the reality, and database sync a requirement, what approach is best and how should the developer proceed? Creating a totally home-grown sync function should be the least desirable of the alternatives listed but sadly it seems to have become the most common.
The truth of the matter is that most home-grown database sync does not really synchronize anything. This approach is highly custom to each application and very inflexible over time.
It is also extremely susceptible to errors and therefore database corruption. Any changes to table structures will require making modifications to server side and client side application and the pseudo-sync functions. Application maintenance or enhancement becomes a nightmare and update deployment becomes a massively costly effort.
However, even this approach has many drawbacks and pitfalls. A seasoned developer with no prior experience using MSF could need from a month to a month and a half just to wrap his head around how it works and why it does what it does the way it does. This is before he writes a single line of code that is specific to the application being developed. Which brings us to the next most significant drawback of using an SDK; you must still write and maintain custom code. Granted, it is nowhere near as much custom code as in the home-grown solution.
Nor is it usually any code for doing actual database sync. But, it is still a lot of code that has to be created to define your database structure so that the standard sync functions of the SDK can interact with your data. In the case of the Microsoft Sync Framework a developer has some tools available to help reduce coding at the server side but nothing is available to help or cut effort at the remote device side.
MSF provides no out of the box support for non-Windows client operating systems. So for Android and iOS all aspects of the client side will need to be custom coded by the developer. The final major drawback of using an SDK that I want to point out is inherent to the concept of using such a tool. It is designed to be used by programmers to create new programs, modules or libraries. It is not designed to be user friendly, overly robust in functionality or well documented. Using a proprietary database application to enable mobile apps with synchronization may seem like a good alternative at first.
They will provide a mobile database app to be used on the device and a server side database counterpart.