Cache IQueryable for Better LINQ-to-SQL Performance

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.Linq.Mapping;

namespace Prototype.Database.Data
{
    [Table(Name = "job")]
    public class Job
    {
        [Column(Name = "id", IsPrimaryKey = true)]
        public int Id { get; set; }

        [Column(Name = "type")]
        public int Type { get; set; }

        [Column(Name = "person")]
        public int Person { get; set; }
    }
}