Android SQLite Insert or Update

Answer 1

for me, none of the approaches are work if you don't have "_id" (Primary Key)

you should first call update, if the affected rows are zero, then insert it with ignore:

 String selection = MessageDetailTable.SMS_ID+" =?";
 String[] selectionArgs =  new String[] { String.valueOf(md.getSmsId())};

 int affectedRows = db.update(MessageDetailTable.TABLE_NAME, values, selection,selectionArgs);

 if(affectedRows<=0) {
     long id = db.insertWithOnConflict(MessageDetailTable.TABLE_NAME, null, values, SQLiteDatabase.CONFLICT_IGNORE);
 }