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

问题

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();

I am using SQL Server 2008 and Visual Studio 2017, and I installed SQL Server 2017 as well. My project is ASP.NET Core.

Error:

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

I think the problem is SQL Server 2008.

How can I tell my project to use SQL Server 2017?

回答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()));
    }

回答2:

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.

来源：https://stackoverflow.com/questions/53349099/incorrect-syntax-near-offset-invalid-usage-of-the-option-next-in-the-fetch-st