I have this function that is filling out a class based on data from several tables. I got the first cursor:
String query="SELECT * FROM SESSION where _id =" + mSessionID + ";";
Cursor c = dbAdapter.selectRecordsFromDB(query, null);
Session session=null;
c.moveToFirst();
This works great. Then a little lower I do this:
long galleryId = c.getInt(4);
long packageId = c.getInt(5);
long contractId = c.getInt(6);
String query2="SELECT * FROM PHOTOPACKAGES WHERE _id =" + packageId + ";";
Cursor p = dbAdapter.selectRecordsFromDB(query2, null);
and the p cursor always returns -1 for its count. I can go right into the sqlite in the adb and run the same query where packageId = 1 and it works great…so not sure why this is not working, i don’t see any other errors…can you just not use two cursors on the same database? p.s. selectRecordsFromDB is a helper function:
public Cursor selectRecordsFromDB(String query, String[] selectionArgs) {
Cursor c = myDataBase.rawQuery(query, selectionArgs);
return myDataBase.rawQuery(query, selectionArgs);
}
To answer your actual question: Yes you can target the same DB with multiple cursors. I believe there is something else wrong with your code.
Also as Philip pointed out, creating Cursors is very costly and you do not want to make extras just because, and always close them when finished with them.