Question

我正在尝试使用流畅的映射连接到oracle中的现有数据库。我有在CUstomer上映射

public CustomerMapping()
    {

         Not.LazyLoad();
        Id(x => x.Cst_Recid).GeneratedBy.Increment() ;
    }

我正在尝试创建会话

public static ISessionFactory CreateSessionFactory()
    {
        return Fluently
            .Configure()
            .Database(OracleClientConfiguration.Oracle10.ConnectionString
            ("...."))
            .Mappings(m =>
             {
                 m.FluentMappings.AddFromAssemblyOf<CustomerMapping>();

             })
             .BuildConfiguration() 
             .BuildSessionFactory();
    }

我有一些试用课程来尝试创建sessionFactory

public class MyDataProvider
{
    public static  Customer GetCustomerById(long customerId)
    {
        ISessionFactory sessionFactory = SessionFactory.CreateSessionFactory(); 
        ISession session = sessionFactory.OpenSession();
          return session.Linq<Customer>().Where(x => x.Cst_Recid.Equals(temp)).FirstOrDefault();

    }


}

即使我要打开会话并激活......我也无法通过ID获得客户

测试非常简单 - 只检查选择活动

    [Test]
    public void CanGetCustomerById()
    {
        MyDataProvider provider = new MyDataProvider();
        Assert.AreEqual(33941, MyDataProvider.GetCustomerById(33941).Cst_Recid);

    }

有一个错误 -

TestCase'... DataLayer.Tests.CustomerMappingTests.CanGetCustomerById' 失败：NHibernate.ADOException：无法执行查询 [SELECT * FROM（如Cst1_0_0_，this_.Cst_Customerid如Cst2_0_0_，this_.Cst_First_Name如Cst3_0_0_，this_.Cst_Group_Recid如Cst4_0_0_，this_.Cst_Insdbdt如Cst5_0_0_，this_.Cst_Insdbuser如Cst6_0_0_，this_.Cst_Joingroup_Dt SELECT this_.Cst_Recid如Cst7_0_0_，THIS_。 Cst_Last_Name如Cst8_0_0_，this_.Cst_Lastupddt如Cst9_0_0_，this_.Cst_Lastupduser如Cst10_0_0_，this_.Cst_Tat_Lakoach_Meshalem如Cst11_0_0_，this_.Cst_Typeid如Cst12_0_0_，this_.Cst_Tziyun_Meshalem_Rashi_Only如Cst13_0_0_，this_.Cst_Tziyun_Mizdamen如Cst14_0_0_ FROM “客户” THIS_ WHERE this_.Cst_Recid =： p0）其中rownum＆lt; =：p1] 位置参数：＃0＆gt; 33941 [SQL：选择从*（SELECT this_.Cst_Recid如Cst1_0_0_，this_.Cst_Customerid如Cst2_0_0_，this_.Cst_First_Name如Cst3_0_0_，this_.Cst_Group_Recid如Cst4_0_0_，this_.Cst_Insdbdt如Cst5_0_0_，this_.Cst_Insdbuser如Cst6_0_0_，this_.Cst_Joingroup_Dt如Cst7_0_0_， this_.Cst_Last_Name为Cst8_0_0_，this_.Cst_Lastupddt为Cst9_0_0_，this_.Cst_Lastupduser为Cst10_0_0_，this_.Cst_Tat_Lakoach_Meshalem为Cst11_0_0_，this_.Cst_Typeid为Cst12_0_0_，this_.Cst_Tziyun_Meshalem_Rashi_Only为Cst13_0_0_，this_.Cst_Tziyun_Mizdamen为Cst14_0_0_ FROM “客户” THIS_ WHERE this_.Cst_Recid =：p0）其中rownum＆lt; =：p1] ----＆GT; System.Data.OracleClient.OracleException：ORA-00942：表或视图不存在

他试图运行的查询是由FluentNHibernate自动构建的。如果我删除quoates查询执行正确，它得到结果..麻烦是我不能改变我想要的查询..也许问题是我们使用Oracle 11 g和FluentNhibernate仅调整到Oracle 9或10？

将会获得任何帮助。

Answer 1

我之前的回答是不正确的。请允许我再试一次！

当您在Oracle中引用对象名称时，它会变得区分大小写。您的CUSTOMER表被引用为“Customer”，与被引用的“CUSTOMER”不同：

SQL> select * from "dual";
select * from "dual"
              *
ERROR at line 1:
ORA-00942: table or view does not exist


SQL> select * from "Dual";
select * from "Dual"
              *
ERROR at line 1:
ORA-00942: table or view does not exist


SQL> select * from "DUAL";

D
-
X

我仍然对Fluid NHibernate一无所知，但它是否可以让它寻找“CUSTOMER”表而不是“Customers”表？

或者，如果没有其他内容正在寻找CUSTOMERS表，您可以将其重命名为“Customers”...但是，这会破坏对CUSTOMERS表的引用：

SQL> create table CUSTOMERS (x int);

Table created.

SQL> insert into CUSTOMERS (x) values (1);

1 row created.

SQL> select * from CUSTOMERS;

         X
----------
         1

SQL> select * from "Customers";
select * from "Customers"
              *
ERROR at line 1:
ORA-00942: table or view does not exist


SQL> select * from "CUSTOMERS";

         X
----------
         1

SQL> alter table CUSTOMERS rename to "Customers";

Table altered.

SQL> select * from CUSTOMERS;
select * from CUSTOMERS
              *
ERROR at line 1:
ORA-00942: table or view does not exist


SQL> select * from "Customers";

         X
----------
         1

祝你好运！我希望这有帮助...

流畅的Nhibernate超过了oracle中的遗留数据库

1 个答案: