The post GroupBy in LINQ Query in Entity Framework Core appeared first on OctopusCodes.
]]>using EntityFrameworkCore_ConsoleApp.Models;
namespace EntityFrameworkCore_ConsoleApp
{
public class Program
{
static void Main(string[] args)
{
using (var databaseContext = new DatabaseContext())
{
var groups = (from product in databaseContext.Products
group product by product.CategoryId into gr
select new
{
gr.Key,
CountProduct = gr.Count(),
SumQuantities = gr.Sum(productOfGroup => productOfGroup.Price),
MinPrice = gr.Min(productOfGroup => productOfGroup.Price),
MaxPrice = gr.Max(productOfGroup => productOfGroup.Price),
AvgPrice = gr.Average(productOfGroup => productOfGroup.Price)
}).ToList();
groups.ForEach(group =>
{
Console.WriteLine("Category Id: " + group.Key);
Console.WriteLine("Count Product: " + group.CountProduct);
Console.WriteLine("Sum Quantities: " + group.SumQuantities);
Console.WriteLine("Min Price: " + group.MinPrice);
Console.WriteLine("Max Price: " + group.MaxPrice);
Console.WriteLine("Avg Price: " + group.AvgPrice);
Console.WriteLine("---------------------");
});
}
}
}
}
Category Id: 1
Count Product: 3
Sum Quantities: 35
Min Price: 5
Max Price: 20
Avg Price: 11.666666666666666
---------------------
Category Id: 2
Count Product: 2
Sum Quantities: 19
Min Price: 4
Max Price: 15
Avg Price: 9.5
---------------------
Category Id: 3
Count Product: 3
Sum Quantities: 79
Min Price: 17
Max Price: 43
Avg Price: 26.333333333333332
---------------------
You can use combination of GroupBy and Where as below:
using EntityFrameworkCore_ConsoleApp.Models;
namespace EntityFrameworkCore_ConsoleApp
{
public class Program
{
static void Main(string[] args)
{
using (var databaseContext = new DatabaseContext())
{
var groups = (from product in databaseContext.Products
where product.Status == true
group product by product.CategoryId into gr
select new
{
gr.Key,
CountProduct = gr.Count(),
SumQuantities = gr.Sum(productOfGroup => productOfGroup.Price),
MinPrice = gr.Min(productOfGroup => productOfGroup.Price),
MaxPrice = gr.Max(productOfGroup => productOfGroup.Price),
AvgPrice = gr.Average(productOfGroup => productOfGroup.Price)
}).ToList();
groups.ForEach(group =>
{
Console.WriteLine("Category Id: " + group.Key);
Console.WriteLine("Count Product: " + group.CountProduct);
Console.WriteLine("Sum Quantities: " + group.SumQuantities);
Console.WriteLine("Min Price: " + group.MinPrice);
Console.WriteLine("Max Price: " + group.MaxPrice);
Console.WriteLine("Avg Price: " + group.AvgPrice);
Console.WriteLine("---------------------");
});
}
}
}
}
Category Id: 1
Count Product: 1
Sum Quantities: 10
Min Price: 10
Max Price: 10
Avg Price: 10
---------------------
Category Id: 2
Count Product: 1
Sum Quantities: 15
Min Price: 15
Max Price: 15
Avg Price: 15
---------------------
Category Id: 3
Count Product: 2
Sum Quantities: 36
Min Price: 17
Max Price: 19
Avg Price: 18
---------------------
You can use combination of GroupBy and Skip and Where as below:
using EntityFrameworkCore_ConsoleApp.Models;
namespace EntityFrameworkCore_ConsoleApp
{
public class Program
{
static void Main(string[] args)
{
using (var databaseContext = new DatabaseContext())
{
var groups = (from product in databaseContext.Products
where product.Status == true
group product by product.CategoryId into gr
select new
{
gr.Key,
CountProduct = gr.Count(),
SumQuantities = gr.Sum(productOfGroup => productOfGroup.Price),
MinPrice = gr.Min(productOfGroup => productOfGroup.Price),
MaxPrice = gr.Max(productOfGroup => productOfGroup.Price),
AvgPrice = gr.Average(productOfGroup => productOfGroup.Price)
}).Skip(1).ToList();
groups.ForEach(group =>
{
Console.WriteLine("Category Id: " + group.Key);
Console.WriteLine("Count Product: " + group.CountProduct);
Console.WriteLine("Sum Quantities: " + group.SumQuantities);
Console.WriteLine("Min Price: " + group.MinPrice);
Console.WriteLine("Max Price: " + group.MaxPrice);
Console.WriteLine("Avg Price: " + group.AvgPrice);
Console.WriteLine("---------------------");
});
}
}
}
}
Category Id: 2
Count Product: 1
Sum Quantities: 15
Min Price: 15
Max Price: 15
Avg Price: 15
---------------------
Category Id: 3
Count Product: 2
Sum Quantities: 36
Min Price: 17
Max Price: 19
Avg Price: 18
---------------------
You can use combination of GroupBy and Skip and Take and Where as below:
using EntityFrameworkCore_ConsoleApp.Models;
namespace EntityFrameworkCore_ConsoleApp
{
public class Program
{
static void Main(string[] args)
{
using (var databaseContext = new DatabaseContext())
{
var groups = (from product in databaseContext.Products
where product.Status == true
group product by product.CategoryId into gr
select new
{
gr.Key,
CountProduct = gr.Count(),
SumQuantities = gr.Sum(productOfGroup => productOfGroup.Price),
MinPrice = gr.Min(productOfGroup => productOfGroup.Price),
MaxPrice = gr.Max(productOfGroup => productOfGroup.Price),
AvgPrice = gr.Average(productOfGroup => productOfGroup.Price)
}).Skip(1).Take(1).ToList();
groups.ForEach(group =>
{
Console.WriteLine("Category Id: " + group.Key);
Console.WriteLine("Count Product: " + group.CountProduct);
Console.WriteLine("Sum Quantities: " + group.SumQuantities);
Console.WriteLine("Min Price: " + group.MinPrice);
Console.WriteLine("Max Price: " + group.MaxPrice);
Console.WriteLine("Avg Price: " + group.AvgPrice);
Console.WriteLine("---------------------");
});
}
}
}
}
Category Id: 2
Count Product: 1
Sum Quantities: 15
Min Price: 15
Max Price: 15
Avg Price: 15
---------------------
You can use combination of GroupBy and Skip and Take and OrderBy and Where as below:
using EntityFrameworkCore_ConsoleApp.Models;
namespace EntityFrameworkCore_ConsoleApp
{
public class Program
{
static void Main(string[] args)
{
using (var databaseContext = new DatabaseContext())
{
var groups = (from product in databaseContext.Products
where product.Status == true
group product by product.CategoryId into gr
select new
{
gr.Key,
CountProduct = gr.Count(),
SumQuantities = gr.Sum(productOfGroup => productOfGroup.Price),
MinPrice = gr.Min(productOfGroup => productOfGroup.Price),
MaxPrice = gr.Max(productOfGroup => productOfGroup.Price),
AvgPrice = gr.Average(productOfGroup => productOfGroup.Price)
}).Skip(1).Take(2).OrderByDescending(group => group.SumQuantities).ToList();
groups.ForEach(group =>
{
Console.WriteLine("Category Id: " + group.Key);
Console.WriteLine("Count Product: " + group.CountProduct);
Console.WriteLine("Sum Quantities: " + group.SumQuantities);
Console.WriteLine("Min Price: " + group.MinPrice);
Console.WriteLine("Max Price: " + group.MaxPrice);
Console.WriteLine("Avg Price: " + group.AvgPrice);
Console.WriteLine("---------------------");
});
}
}
}
}
Category Id: 3
Count Product: 2
Sum Quantities: 36
Min Price: 17
Max Price: 19
Avg Price: 18
---------------------
Category Id: 2
Count Product: 1
Sum Quantities: 15
Min Price: 15
Max Price: 15
Avg Price: 15
---------------------
The post GroupBy in LINQ Query in Entity Framework Core appeared first on OctopusCodes.
]]>The post GroupBy Method in LINQ MeThods in Entity Framework Core appeared first on OctopusCodes.
]]>using EntityFrameworkCore_ConsoleApp.Models;
namespace EntityFrameworkCore_ConsoleApp
{
public class Program
{
static void Main(string[] args)
{
using (var databaseContext = new DatabaseContext())
{
var groups = databaseContext.Products.GroupBy(product => product.CategoryId).Select(group => new
{
group.Key,
CountProduct = group.Count(),
SumQuantities = group.Sum(productOfGroup => productOfGroup.Quantity),
MinPrice = group.Min(productOfGroup => productOfGroup.Price),
MaxPrice = group.Max(productOfGroup => productOfGroup.Price),
AvgPrice = group.Average(productOfGroup => productOfGroup.Price)
}).ToList();
groups.ForEach(group =>
{
Console.WriteLine("Category Id: " + group.Key);
Console.WriteLine("Count Product: " + group.CountProduct);
Console.WriteLine("Sum Quantities: " + group.SumQuantities);
Console.WriteLine("Min Price: " + group.MinPrice);
Console.WriteLine("Max Price: " + group.MaxPrice);
Console.WriteLine("Avg Price: " + group.AvgPrice);
Console.WriteLine("---------------------");
});
}
}
}
}
Category Id: 1
Count Product: 3
Sum Quantities: 41
Min Price: 5
Max Price: 20
Avg Price: 11.666666666666666
---------------------
Category Id: 2
Count Product: 2
Sum Quantities: 42
Min Price: 4
Max Price: 15
Avg Price: 9.5
---------------------
Category Id: 3
Count Product: 3
Sum Quantities: 63
Min Price: 17
Max Price: 43
Avg Price: 26.333333333333332
---------------------
You can use combination of GroupBy method and Where method as below:
using EntityFrameworkCore_ConsoleApp.Models;
namespace EntityFrameworkCore_ConsoleApp
{
public class Program
{
static void Main(string[] args)
{
using (var databaseContext = new DatabaseContext())
{
var groups = databaseContext.Products.Where(product => product.Status == true).GroupBy(product => product.CategoryId).Select(group => new
{
group.Key,
CountProduct = group.Count(),
SumQuantities = group.Sum(productOfGroup => productOfGroup.Quantity),
MinPrice = group.Min(productOfGroup => productOfGroup.Price),
MaxPrice = group.Max(productOfGroup => productOfGroup.Price),
AvgPrice = group.Average(productOfGroup => productOfGroup.Price)
}).ToList();
groups.ForEach(group =>
{
Console.WriteLine("Category Id: " + group.Key);
Console.WriteLine("Count Product: " + group.CountProduct);
Console.WriteLine("Sum Quantities: " + group.SumQuantities);
Console.WriteLine("Min Price: " + group.MinPrice);
Console.WriteLine("Max Price: " + group.MaxPrice);
Console.WriteLine("Avg Price: " + group.AvgPrice);
Console.WriteLine("---------------------");
});
}
}
}
}
Category Id: 1
Count Product: 1
Sum Quantities: 15
Min Price: 10
Max Price: 10
Avg Price: 10
---------------------
Category Id: 2
Count Product: 1
Sum Quantities: 16
Min Price: 15
Max Price: 15
Avg Price: 15
---------------------
Category Id: 3
Count Product: 2
Sum Quantities: 52
Min Price: 17
Max Price: 19
Avg Price: 18
---------------------
You can use combination of GroupBy method and Skip method and Where method as below:
using EntityFrameworkCore_ConsoleApp.Models;
namespace EntityFrameworkCore_ConsoleApp
{
public class Program
{
static void Main(string[] args)
{
using (var databaseContext = new DatabaseContext())
{
var groups = databaseContext.Products.Where(product => product.Status == true).GroupBy(product => product.CategoryId).Select(group => new
{
group.Key,
CountProduct = group.Count(),
SumQuantities = group.Sum(productOfGroup => productOfGroup.Quantity),
MinPrice = group.Min(productOfGroup => productOfGroup.Price),
MaxPrice = group.Max(productOfGroup => productOfGroup.Price),
AvgPrice = group.Average(productOfGroup => productOfGroup.Price)
}).Skip(1).ToList();
groups.ForEach(group =>
{
Console.WriteLine("Category Id: " + group.Key);
Console.WriteLine("Count Product: " + group.CountProduct);
Console.WriteLine("Sum Quantities: " + group.SumQuantities);
Console.WriteLine("Min Price: " + group.MinPrice);
Console.WriteLine("Max Price: " + group.MaxPrice);
Console.WriteLine("Avg Price: " + group.AvgPrice);
Console.WriteLine("---------------------");
});
}
}
}
}
Category Id: 2
Count Product: 1
Sum Quantities: 16
Min Price: 15
Max Price: 15
Avg Price: 15
---------------------
Category Id: 3
Count Product: 2
Sum Quantities: 52
Min Price: 17
Max Price: 19
Avg Price: 18
---------------------
You can use combination of GroupBy method and Skip method and Take method and Where method as below:
using EntityFrameworkCore_ConsoleApp.Models;
namespace EntityFrameworkCore_ConsoleApp
{
public class Program
{
static void Main(string[] args)
{
using (var databaseContext = new DatabaseContext())
{
var groups = databaseContext.Products.Where(product => product.Status == true).GroupBy(product => product.CategoryId).Select(group => new
{
group.Key,
CountProduct = group.Count(),
SumQuantities = group.Sum(productOfGroup => productOfGroup.Quantity),
MinPrice = group.Min(productOfGroup => productOfGroup.Price),
MaxPrice = group.Max(productOfGroup => productOfGroup.Price),
AvgPrice = group.Average(productOfGroup => productOfGroup.Price)
}).Skip(1).Take(1).ToList();
groups.ForEach(group =>
{
Console.WriteLine("Category Id: " + group.Key);
Console.WriteLine("Count Product: " + group.CountProduct);
Console.WriteLine("Sum Quantities: " + group.SumQuantities);
Console.WriteLine("Min Price: " + group.MinPrice);
Console.WriteLine("Max Price: " + group.MaxPrice);
Console.WriteLine("Avg Price: " + group.AvgPrice);
Console.WriteLine("---------------------");
});
}
}
}
}
Category Id: 2
Count Product: 1
Sum Quantities: 16
Min Price: 15
Max Price: 15
Avg Price: 15
---------------------
You can use combination of GroupBy method and Skip method and Take method and OrderBy method and Where method as below:
using EntityFrameworkCore_ConsoleApp.Models;
namespace EntityFrameworkCore_ConsoleApp
{
public class Program
{
static void Main(string[] args)
{
using (var databaseContext = new DatabaseContext())
{
var groups = databaseContext.Products.Where(product => product.Status == true).GroupBy(product => product.CategoryId).Select(group => new
{
group.Key,
CountProduct = group.Count(),
SumQuantities = group.Sum(productOfGroup => productOfGroup.Quantity),
MinPrice = group.Min(productOfGroup => productOfGroup.Price),
MaxPrice = group.Max(productOfGroup => productOfGroup.Price),
AvgPrice = group.Average(productOfGroup => productOfGroup.Price)
}).Skip(1).Take(2).OrderByDescending(group => group.SumQuantities).ToList();
groups.ForEach(group =>
{
Console.WriteLine("Category Id: " + group.Key);
Console.WriteLine("Count Product: " + group.CountProduct);
Console.WriteLine("Sum Quantities: " + group.SumQuantities);
Console.WriteLine("Min Price: " + group.MinPrice);
Console.WriteLine("Max Price: " + group.MaxPrice);
Console.WriteLine("Avg Price: " + group.AvgPrice);
Console.WriteLine("---------------------");
});
}
}
}
}
Category Id: 3
Count Product: 2
Sum Quantities: 52
Min Price: 17
Max Price: 19
Avg Price: 18
---------------------
Category Id: 2
Count Product: 1
Sum Quantities: 16
Min Price: 15
Max Price: 15
Avg Price: 15
---------------------
The post GroupBy Method in LINQ MeThods in Entity Framework Core appeared first on OctopusCodes.
]]>