You can serialize data from your database, e.g. split string for each slot, make it with JSON or similar.
Usage:
Enjoy.Code:// Then you can get slots based in index. string[] idsFromDb = "0|5|10|15|20|25|30|35".Split("|"); List<int> serializedIds = new List<int>(); foreach (string idFromDb in idsFromDb) serializedIds.Add(Convert.ToInt32(idFromDb)); Console.WriteLine(serializedSlots[7]); // Output: "35" as INT.