Table(string name,Properties:[Schema=string]) name:db table name Schema:要创建的表的架构 如果没有指定些特性,将创建默认的表Students or Studentes 格式:(TableName+‘s’(or ‘es’) 如果指定则按指定的名创建 [Table("StudentInfo")]//将Student实体映射到数据库中的StudentInfo表格publicclassStudent {...
By default, EF Core will map to tables and columns named exactly after your .NET classes and properties. For example, mapping a typical Customer class to PostgreSQL will result in SQL such as the following: CREATETABLE"Customers" ("Id"integerNOT NULLGENERATED BY DEFAULTASIDENTITY,"FullName"tex...
EF Core allows to map two or more entities to a single row. This is calledtable splittingortable sharing. Configuration To use table splitting the entity types need to be mapped to the same table, have the primary keys mapped to the same columns and at least one relationship configured betw...
在EF Core 中,Blog.Posts和Post.Blog属性称为“导航”。 关系数据库中的关系 关系数据库使用外键表示关系。 例如,使用 SQL Server 或 Azure SQL 时,可以使用下表来表示我们的Post和Blog类: SQL复制 CREATETABLE[Posts] ( [Id]intNOTNULLIDENTITY, [Title]nvarchar(max)NULL, [Content]nvarchar(max)NULL, [Pu...
high performance lightweight solution for efcore sharding table and sharding database support read-write-separation .一款ef-core下高性能、轻量级针对分表分库读写分离的解决方案,具有零依赖、零学习成本、零业务代码入侵 - dotnetcore/sharding-core
publicclassSysUserModMap:IEntityTypeConfiguration<SysUserMod> { publicvoidConfigure(EntityTypeBuilder<SysUserMod> builder){ builder.HasKey(o => o.Id); builder.Property(o => o.Id).IsRequired().HasMaxLength(128); builder.Property(o => o.Name).HasMaxLength(128); ...
The following table shows parameters that are common to all of the EF Core commands: ParameterDescription -Context <String>TheDbContextclass to use. Class name only or fully qualified with namespaces. If this parameter is omitted, EF Core finds the context class. If there are multiple context ...
What’s New in EF Core 8:aka.ms/ef8-new What’s New in EF Core 7:aka.ms/ef7-new Issues and feature requests for EF Core:github.com/dotnet/efcore/issues Entity Framework Roadmap:aka.ms/efroadmap Bi-weekly updates:aka.ms/ef-news...
Both of these entity types map to theCustomerstable. However, the following bulk update fails on EF7 because it uses both entity types: Copy awaitcontext.Customers .Where(e => e.Name == name) .ExecuteUpdateAsync( s => s.SetProperty(b => b.CustomerInfo.Tag,"Tagged") ...
EntityFrameworkCore.Query.Internal; using Microsoft.EntityFrameworkCore.Query; using Microsoft.EntityFrameworkCore; using EfDemo.QueryableExtension; using EfDemo.DBExtension; using Microsoft.EntityFrameworkCore.Diagnostics; namespace EfDemo.DB { public partial class DecodeMicroMsgContext : DbContext { ...