public static void Main()
{
var context = new AdsEntities();
TimeSpan[] nonOptimizedTestDurations = new TimeSpan[10];
TimeSpan[] optimizedTestDurations = new TimeSpan[10];
Console.WriteLine("Non-optimized:");
for (int i = 0; i < 10; i++)
{
nonOptimizedTestDurations[i] = GetTimeForNonOptimizedSelect(context);
Console.WriteLine("Run {0}: {1}", i + 1, nonOptimizedTestDurations[i]);
}
Console.WriteLine("\nOptimized:");
for (int i = 0; i < 10; i++)
{
optimizedTestDurations[i] = GetTimeForOptimizedSelect(context);
Console.WriteLine("Run {0}: {1}", i + 1, optimizedTestDurations[i]);
}
Console.WriteLine("\nNon-optimized avarage: {0} Ticks{1}Optimized avarage: {2} Ticks",
nonOptimizedTestDurations.Average(n => n.Ticks),
Environment.NewLine,
optimizedTestDurations.Average(n => n.Ticks));
}
public static void Main()
{
var context = new AdsEntities();
ListAllAdsWithoutInclude(context);
//ListAllAdsWithInclude(contex);
}
private static void ListAllAdsWithoutInclude(AdsEntities contex)
{
foreach (var ad in contex.Ads)
{
Console.WriteLine("Ad Name: {0}{5}Status: {1}{5}Category: {2}{5}Town: {3}{5}User: {4}{5}",
ad.Title,
ad.AdStatus.Status,
ad.Category == null ? string.Empty : ad.Category.Name,
ad.Town == null ? string.Empty : ad.Town.Name,
ad.AspNetUser.UserName,
Environment.NewLine);
}
}
private static TimeSpan GetTimeForOptimizedSelect(AdsEntities context)
{
context.Database.SqlQuery<Ad>("CHECKPOINT; DBCC DROPCLEANBUFFERS;");
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
var ads = context.Ads.Select(a => a.Title);
string tempAdName;
foreach (var ad in ads)
{
tempAdName = ad;
}
var timeSpent = stopwatch.Elapsed;
stopwatch.Reset();
return timeSpent;
}
private static void ListAllAdsWithInclude(AdsEntities contex)
{
var ads = contex.Ads
.Include(a => a.Category)
.Include(a => a.Town)
.Include(a => a.AdStatus)
.Include(a => a.AspNetUser);
foreach (var ad in ads)
{
Console.WriteLine("Ad Name: {0}{5}Status: {1}{5}Category: {2}{5}Town: {3}{5}User: {4}{5}",
ad.Title,
ad.AdStatus.Status,
ad.Category == null ? string.Empty : ad.Category.Name,
ad.Town == null ? string.Empty : ad.Town.Name,
ad.AspNetUser.UserName,
Environment.NewLine);
}
//Second way
//var ads = contex.Ads
// .Select(a => new
// {
// Title = a.Title,
// Status = a.AdStatus.Status,
// Category = a.Category.Name,
// Town = a.Town.Name,
// User = a.AspNetUser.UserName
// });
//foreach (var ad in ads)
//{
// Console.WriteLine("Ad Name: {0}{5}Status: {1}{5}Category: {2}{5}Town: {3}{5}User: {4}{5}",
// ad.Title,
// ad.Status,
// ad.Category,
// ad.Town,
// ad.User,
// Environment.NewLine);
//}
}
private static TimeSpan ListAdsOptimizedVersion(AdsEntities context)
{
context.Database.SqlQuery<Ad>("CHECKPOINT; DBCC DROPCLEANBUFFERS;");
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
var ad = context.Ads
.Where(a => a.AdStatus.Status.Equals("Published"))
.OrderBy(a => a.Date)
.Select(a => new
{
AdTitle = a.Title,
AdCategory = a.Category == null ? string.Empty : a.Category.Name,
AdTown = a.Town == null ? string.Empty : a.Town.Name,
AdPublishedOn = a.Date
})
.ToList();
var timeSpent = stopwatch.Elapsed;
stopwatch.Reset();
return timeSpent;
}
static void Main()
{
var db = new AdsEntities();
var start = db.Ads.Count();
var ads = db.Ads
.Include(a => a.Category)
.Include(a => a.AdStatus)
.Include(a => a.Town)
.Include(a => a.AspNetUser);
foreach (var ad in ads)
{
if (ad.Category == null)
{
ad.Category = new Category()
{
Name = "Null"
};
}
if (ad.Town == null)
{
ad.Town = new Town()
{
Name = "Null"
};
}
Console.WriteLine("Title: {0}, Status: {1}, Category: {2}, Town: {3}, User: {4}",
ad.Title,
ad.AdStatus.Status,
ad.Category.Name,
ad.Town.Name,
ad.AspNetUser.UserName);
}
}
