Question

Can anybody tell me what I am doing wrong? The table that I am querying is empty, so I think that the cursor should be empty. But instead, it returns a cursor with 1 row and 1 column. Even so, I don’t see why this results in an error. All I am trying to do is return the single value (if it exists) from my query.

Can somebody help me understand this? Thank you!

Cursor cursor = db.rawQuery("SELECT max(GAME_COLUMN) FROM GAMES_TABLE", null); 
if (cursor.moveToNext()) {
     System.err.println("why am I here?");
     nextGame = cursor.getInt(cursor.getColumnIndex("GAME_COLUMN"));
}

Bad request for field slot 0,-1. numRows = 1, numColumns = 1

Answer 1

This is because there is no column named GAME_COLUMN in the result. Make your query

SELECT max(GAME_COLUMN) AS GC FROM GAMES_TABLE

and then query for GC :-

Cursor cursor = db.rawQuery("SELECT max(GAME_COLUMN) AS GC FROM GAMES_TABLE", null); 
if (cursor.moveToNext()) {
    System.err.println("why am I here?");
    nextGame = cursor.getInt(cursor.getColumnIndex("GC"));
}