Comments on: Introducing Web SQL Databases

By: DS

DS — Thu, 26 Jan 2012 11:49:00 +0000

Can someone please guide me as to, is the data stored in a web sql database persistent?

I created a database and then added some records to it. I cannot access the database via any other page which justifies the “same origin” concept.

But what if I need to access the database again to extract data how do I go about that? I mean from another page..

Please help. Thank you

By: osc2nuke

osc2nuke — Mon, 21 Nov 2011 23:04:51 +0000

i want everyone who stick to webdb, provide with this excelent javascript to insert .sql files: http://html5sql.com/index.html in a webdb enviroment

By: Nad

Nad — Mon, 21 Nov 2011 16:36:52 +0000

I have tried using web sql databases. In my code, i make opendatabase call at the time of user login. And when user proceeds il make some data inserts to this db and noticed that data is being saved. If the user logs out and logs in again, i noticed the db to be created again, resulting in a loss of data, that was previously stored. What can be the reason for that?

By: Ray Browning

Ray Browning — Mon, 14 Nov 2011 11:52:15 +0000

>Hi,
>I was wondering about security issues, like I could easily go >through your SQL code. What are the different ways SQL code can >be protected so that its not that easily accessible.
>One thing I could think off is encryption but just wanted your point >of view.
Probably the best thing to do is to limit data on the SQL side using views and security.

By: gaurav v bagga

gaurav v bagga — Sun, 13 Nov 2011 17:45:43 +0000

Hi,
I was wondering about security issues, like I could easily go through your SQL code. What are the different ways SQL code can be protected so that its not that easily accessible.
One thing I could think off is encryption but just wanted your point of view.

By: Prats

Prats — Fri, 14 Oct 2011 07:02:20 +0000

yes…

By: PG

PG — Fri, 14 Oct 2011 06:59:40 +0000

Thanks Prats for your response. Just want to confirm if this is true for the mobile browsers for BB, Android and iphone safari?

By: Prats

Prats — Fri, 14 Oct 2011 06:57:11 +0000

PG@ in don’t know how to calculate the size of database. But for the browser you don’t need to worry as when you call window.openDatabase(..,.,.., maxMemory) , on start u just set a initial size of the memory. If the database need more memory after that, then browser auto show a dialog box to that your db need memory.. and when you click on the “Ok” button the browser auto increase the memory..

By: PG

PG — Fri, 14 Oct 2011 06:07:36 +0000

Hi,

Please can you tell me how can I find out how many bytes of data is there in my webSQL db. I need to check how many bytes of data can different broswers support. I need to find the size in bytes for the webSQL database.

By: Andy Blum

Andy Blum — Tue, 11 Oct 2011 21:15:34 +0000

I am so sad that this is not going to be part of the official spec. It seems to me an ideal solution to offloading work to local PC’s so centralized databases are not so overwhelmed. I can envision sophisticated workflow applications where db state is initialized in the beginning of a session via REST. State could be sent to the centralized server at the end of a session through REST as well.