Incorrect syntax near 'OFFSET'. Invalid usage of the option NEXT in the FETCH statement "in Entity Framework core"

Question

Here's my EF Core code:

 int page = 1, rowPerPage = 5;
 int count = ctx.Specialty.Count();
 int start = page * rowPerPage;

 var Select = ctx.Specialty.OrderByDescending(u => u.IdS)
            .Skip(start)
            .Take(rowPerPage)
            .AsEnumerable();

Error:

Incorrect syntax near 'OFFSET'. Invalid usage of the option NEXT in the FETCH statement

Answer 1

There is a compatibility setting (UseRowNumberForPaging) for this which can be configured either in the DbContext itself:

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        var coonectionString = "Data Source=localhost\\MSSQLSERVER01;Initial Catalog=AppDb01;Integrated Security=True";
        optionsBuilder.UseSqlServer(coonectionString, builder => builder.UseRowNumberForPaging());
    }

Or as a part of the Startup:

    public void ConfigureServices(IServiceCollection services)
    {
        var coonectionString = "Data Source=localhost\\MSSQLSERVER01;Initial Catalog=AppDb01;Integrated Security=True";
        services.AddDbContext<AppDbContext>(options => options.UseSqlServer(coonectionString, builder => builder.UseRowNumberForPaging()));
    }

Answer 2

UseRowNumberForPaging was removed in EF Core 3.x, method is marked as obsolete. However, you can use EfCore3.SqlServer2008Query package instead. There are 2 packages available in Nuget, one for >= .NET 5.0, other one is for >= .NET Core 3.1

Usage:

 services.AddDbContext<MyDbContext>(o => 
       o.UseSqlServer(Configuration.GetConnectionString("Default"))
        .ReplaceService<IQueryTranslationPostprocessorFactory, SqlServer2008QueryTranslationPostprocessorFactory>());

Answer 3

For anyone using .Net 6 I found this package EntityFrameworkCore.UseRowNumberForPaging 0.3.0: https://www.nuget.org/packages/EntityFrameworkCore.UseRowNumberForPaging/

Base on the github issue: https://github.com/dotnet/efcore/issues/16400

Thank you Rwing, whoever you are, you're a hero!

Answer 4

sql server 2008 not support from my query

solution:

public class AppDbContext : DbContext
{

    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        var coonectionString = "Data Source=localhost\\MSSQLSERVER01;Initial Catalog=AppDb01;Integrated Security=True";
        optionsBuilder.UseSqlServer(coonectionString);
    }
}

Value connection string to the Target server and also inject the settings , The sample code is in the default ASP NET Core project format.