No, database writing is extremely slow especially with many indecies. In my app, I am getting maybe 10 insers a seconds into a table with 20 columns and 15 indecies. As my app is probably 99.9% reads, I didn't try optimizing the writes too much, not sure if it's even possible.
On Apr 13, 12:33 am, Yahel <[email protected]> wrote: > Ok, you are right if the pre and the iphone are 10x faster, it can't > be right. > > I don't see anything wrong in your code, so only two things come to > mind : > > - Instead of using ContentValues, try to create an insert sql > statement and send it to via SQLiteDatabase.execSQL to see if there is > any improvement > - Maybe it's not the database writing that is slow but the reading > from wherever your getting the data ? > > Yahel > > On 12 avr, 12:31, Alok Kulkarni <[email protected]> wrote: > > > > > Ok, > > @Yahel:- For the insertion of same records on a Palm device(Say Palm Pre) , > > its taking 3 seconds.. > > On an IPhone , its taking 1 or 2 seconds.. > > Here is an example of what i am doing.. > > private Boolean addAlbumDB(int AlbumId, String Name, String Label, > > int MultipleArtists, int ArtistId) { > > long result = -1; > > > try { > > > ContentValues initialValues = new ContentValues(); > > initialValues.put(KEY_ID, AlbumId); > > initialValues.put(KEY_NAME, Name); > > initialValues.put(KEY_LABEL, Label); > > initialValues.put(KEY_ARTIST_ID, ArtistId); > > initialValues.put(KEY_MULTIPLE_ARTISTS, MultipleArtists); > > > result = db.insert(DATABASE_TABLE, null, initialValues); > > > } catch (Exception e) { > > Log.i("Exception in addAlbumDB", "" + e.toString()); > > return false; > > } > > > if (result == -1) > > return false; > > return true; > > } > > > The above function is called for around 2000 times.. > > Similarly there are 2 3 more functions for other tables. > > Thanks, > > Alok. > > > On Mon, Apr 12, 2010 at 2:33 PM, Michael Rueger > > <[email protected]>wrote: > > > > On 4/12/2010 10:59 AM, Yahel wrote: > > > >> Hi Alok, > > > >> Posting some logic, or some sql would help us see if you are missing > > >> something :) > > > > (excessive) use of indices comes to mind :-) > > > > Michael > > > >> Yahel > > > >> On 12 avr, 08:50, Alok Kulkarni<[email protected]> wrote: > > > >>> Hi, > > >>> I am inserting around 7000 to 8000 records in my database having 4 > > >>> tables > > >>> each having 3 to 4 columns.Its taking me around 22 seconds to do the > > >>> insertion which is i think is too long. I am using transaction while > > >>> doing > > >>> this without which its taking around 55 seconds. > > >>> According to SQLite documentation , inserting 10000 records in a > > >>> database > > >>> takes time around 2 to 3 seconds. > > >>> Am i missing something , or is the behaviour correct? > > >>> Thanks, > > >>> Alok > > > > -- > > > You received this message because you are subscribed to the Google > > > Groups "Android Developers" group. > > > To post to this group, send email to [email protected] > > > To unsubscribe from this group, send email to > > > [email protected]<android-developers%2Bunsubs > > > [email protected]> > > > For more options, visit this group at > > >http://groups.google.com/group/android-developers?hl=en > > > > To unsubscribe, reply using "remove me" as the subject.- Hide quoted text > > > - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
