> Firstly, is it possible to implement composite keys?
Yes, its possible.
Can do something like this,
CREATE *TABLE* example1(
field1 text not null,
field2 text not null,
*PRIMARY* *KEY*(field1, field2)
);
> And secondly, how can I load a pre-created database onto an Android
> device efficiently?
Database will be loaded, when you load the apk into the deveice. All
the resource, that application has (like files, database etc.) will be
bundled in the .apk file. And moreover, Database is private to the
application in Android.
Nithin
On Jan 4, 7:44 pm, verb <verb_se...@hotmail.com> wrote:
> I'm currently doing a project which requires a potentially large
> underlying relational database, and have a couple of queries on how to
> implement this in Android.
>
> Firstly, is it possible to implement composite keys? I have seen
> methods which suggest that all primary keys in a database must be
> called '_id' for Android to recognise them, but cannot find anything
> on if there is more than one key in a table.
>
> And secondly, how can I load a pre-created database onto an Android
> device efficiently? It will only need to be added once on
> installation, but potentially be updated or have individual entries
> added by the user.
>
> I am currently implementing in API Level 4 (Android 1.6).
>
> Thanks in advance.
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