NHibernate使用架构作为表名前缀

如何以以下格式为表名添加前缀

[schema][.][tableName]

如果我这样做

public class PrescriptionOverride : AutoMappingOverride<Prescription>
{
    mapping.Table("schema.TableName);
}

如果架构尚不存在，则需要使用创建该架构。但是，当您使用NH创建数据库模式时，这些将生效

public class CreateSchema : AbstractAuxiliaryDatabaseObject
{
    public override string SqlCreateString(Dialect dialect, IMapping p, string defaultCatalog, string defaultSchema)
    {
        return "CREATE SCHEMA [mySchema]";
    }

    public override string SqlDropString(Dialect dialect, string defaultCatalog, string defaultSchema)
    {
        return "DROP SCHEMA [mySchema]";
    }
}

然后您需要将其添加到配置中：

config.AddAuxiliaryDatabaseObject(new CreateSchema());

它将在您执行以下操作时生效：

new SchemaExport(config).Create(true, true);

或：

---

我可以用NHibernate创建模式，问题是NHibernate首先创建表，然后创建辅助对象，在本例中是模式。而且，由于表使用模式，并且没有创建模式，所以配置将崩溃

这是配置

public SessionFactory InitializeSessionFactory(string connectionString)
{
      FluentConfiguration fluentConfiguration = Fluently.Configure();


      fluentConfiguration
          .Database(MsSqlConfiguration.MsSql2012.Dialect<MsSql2012Dialect>().ConnectionString(connectionString));

      fluentConfiguration
           .ExposeConfiguration((config) =>
            {
                config.AddAuxiliaryDatabaseObject(new CreateSchema("mySchema"));
                new SchemaExport(config).Create(false, true);
            });


      fluentConfiguration
            .Mappings(....);


       ISessionFactory sessionFactory = fluentConfiguration
             .BuildConfiguration()
             .BuildSessionFactory();

       return sessionFactory ;
}

这就是我使用它的方式

public class EntityOverride : IAutoMappingOverride<Entity>
{
      void IAutoMappingOverride<Entity>.Override(AutoMapping<Entity> mapping)
      {
           mapping.Schema("mySchema");
      }
}

我选择了另一种方法。我在应用程序初始化时通过SqlCommand创建模式，然后只使用模式

我就是这样做的

 public sealed class SqlSchemaCreator
    {
        private static Lazy<SqlSchemaCreator> _instance = new Lazy<SqlSchemaCreator>(() => new SqlSchemaCreator());

        public static SqlSchemaCreator Instance { get => _instance.Value; }

        private SqlSchemaCreator()
        {

        }

        public void CreateSchemas(string connectionString, List<string> schemas)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                connection.Open();

                using (SqlCommand command = connection.CreateCommand())
                {
                    foreach (string schema in schemas)
                    {
                        string query = $"IF NOT EXISTS (SELECT * FROM sys.schemas WHERE name = '{schema.ToLower()}') BEGIN EXEC ('CREATE SCHEMA {schema.ToLower()}') END";

                        command.CommandText = query;

                        command.ExecuteNonQuery();
                    }
                }
            }
        }
    }

然后就用它

public class EntityOverride : IAutoMappingOverride<Entity>
{
     void IAutoMappingOverride<Entity>.Override(AutoMapping<Entity> mapping)
     {
          mapping.Schema("mySchema");
     }
}

---

你试过SchemaschemaName；？不，我是NHibernate的新手，所以我对这样的选择一无所知。我会调查的。谢谢你和我ones@RadimKöhler，你能帮我使用schema选项吗？我尝试过使用mapping.Schematest；然后是mapping.TablemyTable，但无法使其正常工作。知道我做错了什么吗？我假设如果模式不存在，它将自动创建。我使用的是IAutoMappingOverride，而不是David在回答中指出的ClassMap。。我们还需要一些特殊的SQL触发器，再加上模式设置。。应该有用

public class EntityOverride : IAutoMappingOverride<Entity>
{
      void IAutoMappingOverride<Entity>.Override(AutoMapping<Entity> mapping)
      {
           mapping.Schema("mySchema");
      }
}

 public sealed class SqlSchemaCreator
    {
        private static Lazy<SqlSchemaCreator> _instance = new Lazy<SqlSchemaCreator>(() => new SqlSchemaCreator());

        public static SqlSchemaCreator Instance { get => _instance.Value; }

        private SqlSchemaCreator()
        {

        }

        public void CreateSchemas(string connectionString, List<string> schemas)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                connection.Open();

                using (SqlCommand command = connection.CreateCommand())
                {
                    foreach (string schema in schemas)
                    {
                        string query = $"IF NOT EXISTS (SELECT * FROM sys.schemas WHERE name = '{schema.ToLower()}') BEGIN EXEC ('CREATE SCHEMA {schema.ToLower()}') END";

                        command.CommandText = query;

                        command.ExecuteNonQuery();
                    }
                }
            }
        }
    }

public class EntityOverride : IAutoMappingOverride<Entity>
{
     void IAutoMappingOverride<Entity>.Override(AutoMapping<Entity> mapping)
     {
          mapping.Schema("mySchema");
     }
}