Re: [sqlite] New sqlite version update tool based on pragma

2016-10-03 Thread Sergei G
I can certainly add a transaction.  I did not know "Android's
SQLiteOpenHelper" exists.

On Sat, Oct 1, 2016 at 1:01 AM, Clemens Ladisch  wrote:

> Sergei G wrote:
> > I wrote a tool that I am using to maintain SQLite DB schema.  It is very
> > simple and it is based on user_version pragma, which makes it SQLite
> > specific.  I have no plans to make it more complicated than it is today.
>
> This makes it quite similar to Android's SQLiteOpenHelper.
>
> > https://github.com/Kulak/sqlitemaint
>
> | Known Issues
> |
> | There is no wrapping of script file in a transaction. If script fails
> | it may leave datbase in an inconsistent state.  Workaround: apply
> | transaction in the script file itself.
>
> The checking of the version and the actual update must be done
> atomically, so it is your tool that must create a transaction.
>
>
> Regards,
> Clemens
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Re: [sqlite] New sqlite version update tool based on pragma

2016-10-01 Thread Clemens Ladisch
Sergei G wrote:
> I wrote a tool that I am using to maintain SQLite DB schema.  It is very
> simple and it is based on user_version pragma, which makes it SQLite
> specific.  I have no plans to make it more complicated than it is today.

This makes it quite similar to Android's SQLiteOpenHelper.

> https://github.com/Kulak/sqlitemaint

| Known Issues
|
| There is no wrapping of script file in a transaction. If script fails
| it may leave datbase in an inconsistent state.  Workaround: apply
| transaction in the script file itself.

The checking of the version and the actual update must be done
atomically, so it is your tool that must create a transaction.


Regards,
Clemens
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[sqlite] New sqlite version update tool based on pragma

2016-10-01 Thread Sergei G
Hi,

I am a passive subscriber to this list at best and I use SQLite on small
projects.

I wrote a tool that I am using to maintain SQLite DB schema.  It is very
simple and it is based on user_version pragma, which makes it SQLite
specific.  I have no plans to make it more complicated than it is today.

I used GO language to write the library and application for it.

Reusable library and detailed documentation of algorithm:
https://github.com/Kulak/sqlitemaint

Console executable front end:  https://github.com/Kulak/sqlitemaintainer

It is just my small contribution back to an excellent SQLite library.

I am not sure if there is a good reference repository to get tool listed.


Thank you
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