sprockets/src/main/java/net/sf/sprockets/database/Cursors.java
@Nullable
    public static String firstString(Cursor cursor, boolean close) {
        String s = cursor.moveToFirst() ? cursor.getString(0) : null;
        close(cursor, close);
        return s;
    }
@Nullable
    public static String firstString(Cursor cursor, boolean close) {
        String s = cursor.moveToFirst() ? cursor.getString(0) : null;
        close(cursor, close);
        return s;
    }
Get the String value in the first row and column.

@param close true to close the cursor or false to leave it open
@return null if the cursor is empty