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Using MS SQL / SQLLite for iPhone  App

Posted on 2016-11-07
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Last Modified: 2016-11-07
I have a relational 10-15 Table which is about Business, Activities, Recreation  in the Town. This is very small database designed in SQL.

I have to design an iPhone App to retrieve the data and Read only mode.

Do i need to have SQLLite database on the App ? If so, does the data from SQL is communicated to SQLLite through API ?

By the way, iPhone is expected to be coded using XAMARIN Environment - C#.
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Question by:chokka
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Expert Comment

by:lcohan
ID: 41877791
"Do i need to have SQLLite database on the App" - you need to access it via your "App" (and eventually to trigger sync before read) as it is already on IOS and Android devices. For sync-ing to IOS looks like someone did that already in xamarin:

https://forums.xamarin.com/discussion/5719/sync-sqlite-with-sql-server-merge-replication

SyncStudio https://apkpure.com/syncstudio-sync-client/com.syncstudioB4A.client looks like will have some IOS nugget in the future as per comments here: https://www.dbsyncstudio.com/challenges-of-mobile-db-sync/
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Author Comment

by:chokka
ID: 41877810
@ICohan, I am in the Designing Phase. My question is, whether iPhone App requires to have both server as well as client based database ? Or, iPhone App can be developed only with Sqllite database.
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Accepted Solution

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lcohan earned 500 total points
ID: 41877836
Sorry if I misunderstood the essence of your question -  yes, SQLlite on your device should be enough in my opinion to host the data for your local app.
 
https://www.sqlite.org/whentouse.html

Now...if you need to deploy the app on multiple devices (which is more like it in my opinion) you'll have the local SQL lite client database sync-ed to a MS SQL for instance (if is small DB - up to max 2GB) you could even use free SQL Express if I'm not mistaken as your "server" repository where data from all clients is centralized/merged and sync-ed to all the devices as needed. Or use MySQL for your "server" (which I believe it is still free) if you think you'll have more than 2GB of data in your "Server" database.
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Author Comment

by:chokka
ID: 41877878
Thank you so much @Icohan.  I firmly believe size of my database would be less than 0.5 GB or little less than 1 GB. Yes, App will be deployed at least minimum of 50 - 100 users.

As per my understanding on your comment, I will have to have a Server based Database - SQL Express and SQLLite for App based database.
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LVL 39

Expert Comment

by:lcohan
ID: 41877885
Right that should do it for sure and keep in mind to sync only what/when necessary from "server" SQL to "client" SQLLite database.
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Author Comment

by:chokka
ID: 41877895
Thank you so much. That works...!!
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Author Closing Comment

by:chokka
ID: 41877896
Thanks
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