Fluent NHibernate QueryOver 不返回预期数据？（甲骨文）答案

【问题标题】：Fluent NHibernate QueryOver not returning expected data? (Oracle)Fluent NHibernate QueryOver 不返回预期数据？（甲骨文）
【发布时间】：2014-06-01 17:48:48
【问题描述】：

我有一堂课：

public class WorkOrderStatusTracking {
  private WorkOrderStatusTracking_ID _id = new WorkOrderStatusTracking_ID();
  public virtual WorkOrderStatusTracking_ID ID {
    get { return _id; }
    set { _id = value; }
  }
  public virtual String WORK_ORDER_NBR { get; set; }
  public virtual String WORK_ORDER_TASK { get; set; }
  public virtual Int32 GEN_ARG { get; set; }
  public virtual String HOLD_CODE { get; set; }
  public virtual String HOLD_RELEASE_DATE { get; set; }
}

复合ID：

public class WorkOrderStatusTracking_ID {
  public virtual String WORK_ORDER_NBR { get; set; }
  public virtual String WORK_ORDER_TASK { get; set; }
  public virtual Int32  GEN_ARG { get; set; }
  public override bool Equals(object obj) {
    if (obj == null) {
      return false;
    }
    var t = obj as WorkOrderStatusTracking_ID;
    if (t == null) {
      return false;
    }
    if (
      (WORK_ORDER_NBR == t.WORK_ORDER_NBR) &&
      (WORK_ORDER_TASK == t.WORK_ORDER_TASK) &&
      (GEN_ARG == t.GEN_ARG)
    ) {
      return true;
    }
    return false;
  }
  public override int GetHashCode() {
    return String.Format("{0}|{1}|{2}",
      WORK_ORDER_NBR,
      WORK_ORDER_TASK,
      GEN_ARG
    ).GetHashCode();
  }  
}

还有一个类图：

public class WorkOrderStatusTracking_ORM : ClassMap<WorkOrderStatusTracking> {
  public WorkOrderStatusTracking_ORM() {
    Table("TIDWOSTR");
    CompositeId(x => x.ID)
      .KeyProperty(x => x.WORK_ORDER_NBR, x => x.Length(8))
      .KeyProperty(x => x.WORK_ORDER_TASK, x => x.Length(2))
      .KeyProperty(x => x.GEN_ARG);
    Map(x => x.WORK_ORDER_NBR).Length(8);
    Map(x => x.WORK_ORDER_TASK).Length(2);
    Map(x => x.GEN_ARG);
    Map(x => x.HOLD_CODE).Length(3);
    Map(x => x.HOLD_RELEASE_DATE).Length(8);
  }
}

但是，当我跑步时：

List<WorkOrderStatusTracking> WorkOrderStatusTrackings = session.QueryOver<WorkOrderStatusTracking>()
  .Where(x => x.WORK_ORDER_NBR == "00322384")
  .List<WorkOrderStatusTracking>().ToList();

foreach (WorkOrderStatusTracking w in WorkOrderStatusTrackings) {
  Console.WriteLine(...);
}

我得到零结果...

现在我知道这个 where 子句存在一个事实条目，如果我 .ShowSql() 并将查询复制到 SQL Developer（这是一个 Oracle 数据库），它肯定会返回行，此外，如果我删除我的 .Where()并输入一个 .Take(10)，我得到了返回的记录。有人有想法么？尽管生成的查询在 SQL Developer 中工作，为什么 .Where 不起作用？

log4net 结果：

NHibernate.Cfg.Environment: 2014-06-02 12:11:55,285 [9] INFO  NHibernate.Cfg.Environment - NHibernate 3.3.1.4000 (3.3.1.4000)
NHibernate.Cfg.Environment: 2014-06-02 12:11:55,302 [9] INFO  NHibernate.Cfg.Environment - hibernate-configuration section not found in application configuration file
NHibernate.Cfg.Environment: 2014-06-02 12:11:55,304 [9] INFO  NHibernate.Cfg.Environment - Bytecode provider name : lcg
NHibernate.Cfg.Environment: 2014-06-02 12:11:55,307 [9] INFO  NHibernate.Cfg.Environment - Using reflection optimizer
NHibernate.Cfg.Configuration: 2014-06-02 12:11:55,554 [9] DEBUG NHibernate.Cfg.Configuration - Mapping XML:
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"><class xmlns="urn:nhibernate-mapping-2.2" name="Client.WorkOrderStatusTracking, Client, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" table="TIDWOSTR"><composite-id name="ID"><key-property name="WORK_ORDER_NBR" type="System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"><column name="WORK_ORDER_NBR" /></key-property><key-property name="WORK_ORDER_TASK" type="System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"><column name="WORK_ORDER_TASK" /></key-property><key-property name="GEN_ARG" type="System.Int32, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"><column name="GEN_ARG" /></key-property></composite-id><property name="WORK_ORDER_NBR" type="System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"><column name="WORK_ORDER_NBR" /></property><property name="WORK_ORDER_TASK" type="System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"><column name="WORK_ORDER_TASK" /></property><property name="GEN_ARG" type="System.Int32, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"><column name="GEN_ARG" /></property><property name="HOLD_CODE" type="System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"><column name="HOLD_CODE" /></property><property name="HOLD_RELEASE_DATE" type="System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"><column name="HOLD_RELEASE_DATE" /></property></class></hibernate-mapping>
NHibernate.Dialect.Dialect: 2014-06-02 12:11:55,677 [9] INFO  NHibernate.Dialect.Dialect - Using dialect: NHibernate.Dialect.Oracle10gDialect
NHibernate.Cfg.XmlHbmBinding.Binder: 2014-06-02 12:11:55,796 [9] INFO  NHibernate.Cfg.XmlHbmBinding.Binder - Mapping class: Client.WorkOrderStatusTracking -> TIDWOSTR
NHibernate.Cfg.XmlHbmBinding.Binder: 2014-06-02 12:11:55,862 [9] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder - Mapped property: WORK_ORDER_NBR -> WORK_ORDER_NBR, type: String
NHibernate.Cfg.XmlHbmBinding.Binder: 2014-06-02 12:11:55,864 [9] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder - Mapped property: WORK_ORDER_TASK -> WORK_ORDER_TASK, type: String
NHibernate.Cfg.XmlHbmBinding.Binder: 2014-06-02 12:11:55,864 [9] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder - Mapped property: GEN_ARG -> GEN_ARG, type: Int32
NHibernate.Tuple.Component.AbstractComponentTuplizer: 2014-06-02 12:11:55,886 [9] DEBUG NHibernate.Tuple.Component.AbstractComponentTuplizer - No custom accessors found for component: Client.WorkOrderStatusTracking_ID, Client, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
NHibernate.Tuple.Component.AbstractComponentTuplizer: 2014-06-02 12:11:55,892 [9] DEBUG NHibernate.Tuple.Component.AbstractComponentTuplizer - No custom accessors found for component: Client.WorkOrderStatusTracking_ID, Client, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
NHibernate.Cfg.XmlHbmBinding.Binder: 2014-06-02 12:11:55,917 [9] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder - Mapped property: ID -> WORK_ORDER_NBR,WORK_ORDER_TASK,GEN_ARG, type: component[WORK_ORDER_NBR,WORK_ORDER_TASK,GEN_ARG]
NHibernate.Cfg.XmlHbmBinding.Binder: 2014-06-02 12:11:55,939 [9] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder - Mapped property: WORK_ORDER_NBR -> WORK_ORDER_NBR, type: String
NHibernate.Cfg.XmlHbmBinding.Binder: 2014-06-02 12:11:55,940 [9] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder - Mapped property: WORK_ORDER_TASK -> WORK_ORDER_TASK, type: String
NHibernate.Cfg.XmlHbmBinding.Binder: 2014-06-02 12:11:55,942 [9] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder - Mapped property: GEN_ARG -> GEN_ARG, type: Int32
NHibernate.Cfg.XmlHbmBinding.Binder: 2014-06-02 12:11:55,943 [9] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder - Mapped property: HOLD_CODE -> HOLD_CODE, type: String
NHibernate.Cfg.XmlHbmBinding.Binder: 2014-06-02 12:11:55,944 [9] DEBUG NHibernate.Cfg.XmlHbmBinding.Binder - Mapped property: HOLD_RELEASE_DATE -> HOLD_RELEASE_DATE, type: String
NHibernate.Cfg.Configuration: 2014-06-02 12:11:55,954 [9] INFO  NHibernate.Cfg.Configuration - checking mappings queue
NHibernate.Cfg.Configuration: 2014-06-02 12:11:55,955 [9] INFO  NHibernate.Cfg.Configuration - processing one-to-many association mappings
NHibernate.Cfg.Configuration: 2014-06-02 12:11:55,956 [9] INFO  NHibernate.Cfg.Configuration - processing one-to-one association property references
NHibernate.Cfg.Configuration: 2014-06-02 12:11:55,957 [9] INFO  NHibernate.Cfg.Configuration - processing foreign key constraints
NHibernate.Cfg.Configuration: 2014-06-02 12:11:55,959 [9] INFO  NHibernate.Cfg.Configuration - processing filters (second pass)
NHibernate.Dialect.Dialect: 2014-06-02 12:11:55,978 [9] INFO  NHibernate.Dialect.Dialect - Using dialect: NHibernate.Dialect.Oracle10gDialect
NHibernate.Dialect.Dialect: 2014-06-02 12:11:55,984 [9] INFO  NHibernate.Dialect.Dialect - Using dialect: NHibernate.Dialect.Oracle10gDialect
NHibernate.Exceptions.SQLExceptionConverterFactory: 2014-06-02 12:11:56,035 [9] INFO  NHibernate.Exceptions.SQLExceptionConverterFactory - Using dialect defined converter
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,036 [9] INFO  NHibernate.Cfg.SettingsFactory - Generate SQL with comments: disabled
NHibernate.Connection.ConnectionProviderFactory: 2014-06-02 12:11:56,038 [9] INFO  NHibernate.Connection.ConnectionProviderFactory - Initializing connection provider: NHibernate.Connection.DriverConnectionProvider
NHibernate.Connection.ConnectionProvider: 2014-06-02 12:11:56,039 [9] INFO  NHibernate.Connection.ConnectionProvider - Configuring ConnectionProvider
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,043 [9] INFO  NHibernate.Cfg.SettingsFactory - Transaction factory: NHibernate.Transaction.AdoNetWithDistributedTransactionFactory
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,044 [9] INFO  NHibernate.Cfg.SettingsFactory - Optimize cache for minimal puts: False
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,045 [9] INFO  NHibernate.Cfg.SettingsFactory - Connection release mode: auto
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,046 [9] INFO  NHibernate.Cfg.SettingsFactory - Default batch fetch size: 1
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,047 [9] INFO  NHibernate.Cfg.SettingsFactory - echoing all SQL to stdout
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,047 [9] INFO  NHibernate.Cfg.SettingsFactory - Statistics: disabled
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,048 [9] INFO  NHibernate.Cfg.SettingsFactory - Deleted entity synthetic identifier rollback: disabled
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,050 [9] INFO  NHibernate.Cfg.SettingsFactory - Query translator: NHibernate.Hql.Ast.ANTLR.ASTQueryTranslatorFactory
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,052 [9] INFO  NHibernate.Cfg.SettingsFactory - Query language substitutions: {}
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,054 [9] INFO  NHibernate.Cfg.SettingsFactory - cache provider: NHibernate.Cache.NoCacheProvider, NHibernate, Version=3.3.1.4000, Culture=neutral, PublicKeyToken=aa95f207798dfdb4
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,055 [9] INFO  NHibernate.Cfg.SettingsFactory - Order SQL inserts for batching: disabled
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,056 [9] DEBUG NHibernate.Cfg.SettingsFactory - Wrap result sets: disabled
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,058 [9] INFO  NHibernate.Cfg.SettingsFactory - Batcher factory: NHibernate.AdoNet.NonBatchingBatcherFactory, NHibernate, Version=3.3.1.4000, Culture=neutral, PublicKeyToken=aa95f207798dfdb4
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,059 [9] INFO  NHibernate.Cfg.SettingsFactory - Default entity-mode: Poco
NHibernate.Cfg.SettingsFactory: 2014-06-02 12:11:56,060 [9] INFO  NHibernate.Cfg.SettingsFactory - Named query checking : enabled
NHibernate.Impl.SessionFactoryImpl: 2014-06-02 12:11:56,081 [9] INFO  NHibernate.Impl.SessionFactoryImpl - building session factory
NHibernate.Impl.SessionFactoryImpl: 2014-06-02 12:11:56,083 [9] DEBUG NHibernate.Impl.SessionFactoryImpl - Session factory constructed with filter configurations : {}
NHibernate.Impl.SessionFactoryImpl: 2014-06-02 12:11:56,084 [9] DEBUG NHibernate.Impl.SessionFactoryImpl - instantiating session factory with properties: {'use_reflection_optimizer'='True', 'connection.provider'='NHibernate.Connection.DriverConnectionProvider', 'connection.driver_class'='NHibernate.Driver.OracleClientDriver, NHibernate, Version=3.3.1.4000, Culture=neutral, PublicKeyToken=aa95f207798dfdb4', 'dialect'='NHibernate.Dialect.Oracle10gDialect, NHibernate, Version=3.3.1.4000, Culture=neutral, PublicKeyToken=aa95f207798dfdb4', 'hibernate.dialect'='NHibernate.Dialect.Oracle10gDialect, NHibernate, Version=3.3.1.4000, Culture=neutral, PublicKeyToken=aa95f207798dfdb4', 'show_sql'='true', 'connection.connection_string'='REMOVED'}
NHibernate.Connection.DriverConnectionProvider: 2014-06-02 12:11:56,087 [9] DEBUG NHibernate.Connection.DriverConnectionProvider - Obtaining IDbConnection from Driver
NHibernate.Connection.ConnectionProvider: 2014-06-02 12:11:56,537 [9] DEBUG NHibernate.Connection.ConnectionProvider - Closing connection
NHibernate.Tuple.Entity.AbstractEntityTuplizer: 2014-06-02 12:11:56,640 [9] DEBUG NHibernate.Tuple.Entity.AbstractEntityTuplizer - No custom accessors found for entity: Client.WorkOrderStatusTracking
NHibernate.Tuple.Entity.AbstractEntityTuplizer: 2014-06-02 12:11:56,644 [9] DEBUG NHibernate.Tuple.Entity.AbstractEntityTuplizer - No custom accessors found for entity: Client.WorkOrderStatusTracking
NHibernate.Tuple.Entity.PocoEntityTuplizer: 2014-06-02 12:11:56,658 [9] DEBUG NHibernate.Tuple.Entity.PocoEntityTuplizer - Create Instantiator using optimizer for:Client.WorkOrderStatusTracking
NHibernate.SqlCommand.SqlSelectBuilder: 2014-06-02 12:11:56,729 [9] DEBUG NHibernate.SqlCommand.SqlSelectBuilder - The initial capacity was set too low at: 8 for the SelectSqlBuilder that needed a capacity of: 11 for the table TIDWOSTR workorders_
NHibernate.Persister.Entity.AbstractEntityPersister: 2014-06-02 12:11:56,734 [9] DEBUG NHibernate.Persister.Entity.AbstractEntityPersister - Static SQL for entity: Client.WorkOrderStatusTracking
NHibernate.Persister.Entity.AbstractEntityPersister: 2014-06-02 12:11:56,735 [9] DEBUG NHibernate.Persister.Entity.AbstractEntityPersister -  Version select: SELECT WORK_ORDER_NBR, WORK_ORDER_TASK, GEN_ARG FROM TIDWOSTR WHERE WORK_ORDER_NBR = ? AND WORK_ORDER_TASK = ? AND GEN_ARG = ?
NHibernate.Persister.Entity.AbstractEntityPersister: 2014-06-02 12:11:56,736 [9] DEBUG NHibernate.Persister.Entity.AbstractEntityPersister -  Snapshot select: SELECT workorders_.WORK_ORDER_NBR, workorders_.WORK_ORDER_TASK, workorders_.GEN_ARG, workorders_.WORK_ORDER_NBR as WORK1_0_, workorders_.WORK_ORDER_TASK as WORK2_0_, workorders_.GEN_ARG as GEN3_0_, workorders_.HOLD_CODE as HOLD4_0_, workorders_.HOLD_RELEASE_DATE as HOLD5_0_ FROM TIDWOSTR workorders_ WHERE workorders_.WORK_ORDER_NBR=? and workorders_.WORK_ORDER_TASK=? and workorders_.GEN_ARG=?
NHibernate.Persister.Entity.AbstractEntityPersister: 2014-06-02 12:11:56,738 [9] DEBUG NHibernate.Persister.Entity.AbstractEntityPersister -  Insert 0: INSERT INTO TIDWOSTR (HOLD_CODE, HOLD_RELEASE_DATE, WORK_ORDER_NBR, WORK_ORDER_TASK, GEN_ARG) VALUES (?, ?, ?, ?, ?)
NHibernate.Persister.Entity.AbstractEntityPersister: 2014-06-02 12:11:56,738 [9] DEBUG NHibernate.Persister.Entity.AbstractEntityPersister -  Update 0: UPDATE TIDWOSTR SET WORK_ORDER_NBR = ?, WORK_ORDER_TASK = ?, GEN_ARG = ?, HOLD_CODE = ?, HOLD_RELEASE_DATE = ? WHERE WORK_ORDER_NBR = ? AND WORK_ORDER_TASK = ? AND GEN_ARG = ?
NHibernate.Persister.Entity.AbstractEntityPersister: 2014-06-02 12:11:56,739 [9] DEBUG NHibernate.Persister.Entity.AbstractEntityPersister -  Delete 0: DELETE FROM TIDWOSTR WHERE WORK_ORDER_NBR = ? AND WORK_ORDER_TASK = ? AND GEN_ARG = ?
NHibernate.SqlCommand.SqlSelectBuilder: 2014-06-02 12:11:56,770 [9] DEBUG NHibernate.SqlCommand.SqlSelectBuilder - The initial capacity was set too low at: 8 for the SelectSqlBuilder that needed a capacity of: 11 for the table TIDWOSTR workorders0_
NHibernate.Loader.Entity.AbstractEntityLoader: 2014-06-02 12:11:56,776 [9] DEBUG NHibernate.Loader.Entity.AbstractEntityLoader - Static select for entity Client.WorkOrderStatusTracking: SELECT workorders0_.WORK_ORDER_NBR as WORK1_0_0_, workorders0_.WORK_ORDER_TASK as WORK2_0_0_, workorders0_.GEN_ARG as GEN3_0_0_, workorders0_.HOLD_CODE as HOLD4_0_0_, workorders0_.HOLD_RELEASE_DATE as HOLD5_0_0_ FROM TIDWOSTR workorders0_ WHERE workorders0_.WORK_ORDER_NBR=? and workorders0_.WORK_ORDER_TASK=? and workorders0_.GEN_ARG=?
NHibernate.SqlCommand.SqlSelectBuilder: 2014-06-02 12:11:56,778 [9] DEBUG NHibernate.SqlCommand.SqlSelectBuilder - The initial capacity was set too low at: 8 for the SelectSqlBuilder that needed a capacity of: 11 for the table TIDWOSTR workorders0_
NHibernate.Loader.Entity.AbstractEntityLoader: 2014-06-02 12:11:56,778 [9] DEBUG NHibernate.Loader.Entity.AbstractEntityLoader - Static select for entity Client.WorkOrderStatusTracking: SELECT workorders0_.WORK_ORDER_NBR as WORK1_0_0_, workorders0_.WORK_ORDER_TASK as WORK2_0_0_, workorders0_.GEN_ARG as GEN3_0_0_, workorders0_.HOLD_CODE as HOLD4_0_0_, workorders0_.HOLD_RELEASE_DATE as HOLD5_0_0_ FROM TIDWOSTR workorders0_ WHERE workorders0_.WORK_ORDER_NBR=? and workorders0_.WORK_ORDER_TASK=? and workorders0_.GEN_ARG=?
NHibernate.SqlCommand.SqlSelectBuilder: 2014-06-02 12:11:56,779 [9] DEBUG NHibernate.SqlCommand.SqlSelectBuilder - The initial capacity was set too low at: 8 for the SelectSqlBuilder that needed a capacity of: 12 for the table TIDWOSTR workorders0_
NHibernate.Loader.Entity.AbstractEntityLoader: 2014-06-02 12:11:56,780 [9] DEBUG NHibernate.Loader.Entity.AbstractEntityLoader - Static select for entity Client.WorkOrderStatusTracking: SELECT workorders0_.WORK_ORDER_NBR as WORK1_0_0_, workorders0_.WORK_ORDER_TASK as WORK2_0_0_, workorders0_.GEN_ARG as GEN3_0_0_, workorders0_.HOLD_CODE as HOLD4_0_0_, workorders0_.HOLD_RELEASE_DATE as HOLD5_0_0_ FROM TIDWOSTR workorders0_ WHERE workorders0_.WORK_ORDER_NBR=? and workorders0_.WORK_ORDER_TASK=? and workorders0_.GEN_ARG=? for update
NHibernate.SqlCommand.SqlSelectBuilder: 2014-06-02 12:11:56,781 [9] DEBUG NHibernate.SqlCommand.SqlSelectBuilder - The initial capacity was set too low at: 8 for the SelectSqlBuilder that needed a capacity of: 12 for the table TIDWOSTR workorders0_
NHibernate.Loader.Entity.AbstractEntityLoader: 2014-06-02 12:11:56,782 [9] DEBUG NHibernate.Loader.Entity.AbstractEntityLoader - Static select for entity Client.WorkOrderStatusTracking: SELECT workorders0_.WORK_ORDER_NBR as WORK1_0_0_, workorders0_.WORK_ORDER_TASK as WORK2_0_0_, workorders0_.GEN_ARG as GEN3_0_0_, workorders0_.HOLD_CODE as HOLD4_0_0_, workorders0_.HOLD_RELEASE_DATE as HOLD5_0_0_ FROM TIDWOSTR workorders0_ WHERE workorders0_.WORK_ORDER_NBR=? and workorders0_.WORK_ORDER_TASK=? and workorders0_.GEN_ARG=? for update nowait
NHibernate.SqlCommand.SqlSelectBuilder: 2014-06-02 12:11:56,783 [9] DEBUG NHibernate.SqlCommand.SqlSelectBuilder - The initial capacity was set too low at: 8 for the SelectSqlBuilder that needed a capacity of: 12 for the table TIDWOSTR workorders0_
NHibernate.Loader.Entity.AbstractEntityLoader: 2014-06-02 12:11:56,784 [9] DEBUG NHibernate.Loader.Entity.AbstractEntityLoader - Static select for entity Client.WorkOrderStatusTracking: SELECT workorders0_.WORK_ORDER_NBR as WORK1_0_0_, workorders0_.WORK_ORDER_TASK as WORK2_0_0_, workorders0_.GEN_ARG as GEN3_0_0_, workorders0_.HOLD_CODE as HOLD4_0_0_, workorders0_.HOLD_RELEASE_DATE as HOLD5_0_0_ FROM TIDWOSTR workorders0_ WHERE workorders0_.WORK_ORDER_NBR=? and workorders0_.WORK_ORDER_TASK=? and workorders0_.GEN_ARG=? for update nowait
NHibernate.SqlCommand.SqlSelectBuilder: 2014-06-02 12:11:56,785 [9] DEBUG NHibernate.SqlCommand.SqlSelectBuilder - The initial capacity was set too low at: 8 for the SelectSqlBuilder that needed a capacity of: 11 for the table TIDWOSTR workorders0_
NHibernate.Loader.Entity.AbstractEntityLoader: 2014-06-02 12:11:56,786 [9] DEBUG NHibernate.Loader.Entity.AbstractEntityLoader - Static select for action NHibernate.Engine.CascadingAction+MergeCascadingAction on entity Client.WorkOrderStatusTracking: SELECT workorders0_.WORK_ORDER_NBR as WORK1_0_0_, workorders0_.WORK_ORDER_TASK as WORK2_0_0_, workorders0_.GEN_ARG as GEN3_0_0_, workorders0_.HOLD_CODE as HOLD4_0_0_, workorders0_.HOLD_RELEASE_DATE as HOLD5_0_0_ FROM TIDWOSTR workorders0_ WHERE workorders0_.WORK_ORDER_NBR=? and workorders0_.WORK_ORDER_TASK=? and workorders0_.GEN_ARG=?
NHibernate.SqlCommand.SqlSelectBuilder: 2014-06-02 12:11:56,787 [9] DEBUG NHibernate.SqlCommand.SqlSelectBuilder - The initial capacity was set too low at: 8 for the SelectSqlBuilder that needed a capacity of: 11 for the table TIDWOSTR workorders0_
NHibernate.Loader.Entity.AbstractEntityLoader: 2014-06-02 12:11:56,787 [9] DEBUG NHibernate.Loader.Entity.AbstractEntityLoader - Static select for action NHibernate.Engine.CascadingAction+RefreshCascadingAction on entity Client.WorkOrderStatusTracking: SELECT workorders0_.WORK_ORDER_NBR as WORK1_0_0_, workorders0_.WORK_ORDER_TASK as WORK2_0_0_, workorders0_.GEN_ARG as GEN3_0_0_, workorders0_.HOLD_CODE as HOLD4_0_0_, workorders0_.HOLD_RELEASE_DATE as HOLD5_0_0_ FROM TIDWOSTR workorders0_ WHERE workorders0_.WORK_ORDER_NBR=? and workorders0_.WORK_ORDER_TASK=? and workorders0_.GEN_ARG=?
NHibernate.Impl.SessionFactoryObjectFactory: 2014-06-02 12:11:56,790 [9] DEBUG NHibernate.Impl.SessionFactoryObjectFactory - initializing class SessionFactoryObjectFactory
NHibernate.Impl.SessionFactoryObjectFactory: 2014-06-02 12:11:56,791 [9] DEBUG NHibernate.Impl.SessionFactoryObjectFactory - registered: f105f54666ff41af8b4a14cf8d3713b3(unnamed)
NHibernate.Impl.SessionFactoryObjectFactory: 2014-06-02 12:11:56,792 [9] INFO  NHibernate.Impl.SessionFactoryObjectFactory - no name configured
NHibernate.Impl.SessionFactoryImpl: 2014-06-02 12:11:56,793 [9] DEBUG NHibernate.Impl.SessionFactoryImpl - Instantiated session factory
NHibernate.Impl.SessionFactoryImpl: 2014-06-02 12:11:56,797 [9] DEBUG NHibernate.Impl.SessionFactoryImpl - Checking 0 named HQL queries
NHibernate.Impl.SessionFactoryImpl: 2014-06-02 12:11:56,798 [9] DEBUG NHibernate.Impl.SessionFactoryImpl - Checking 0 named SQL queries
NHibernate.Impl.SessionImpl: 2014-06-02 12:11:56,818 [9] DEBUG NHibernate.Impl.SessionImpl - [session-id=4e41d21c-975d-44a2-8d39-a7c36268c157] opened session at timestamp: 635373079168, for session factory: [/f105f54666ff41af8b4a14cf8d3713b3]
NHibernate.Loader.Criteria.CriteriaQueryTranslator: 2014-06-02 12:11:56,939 [9] DEBUG NHibernate.Loader.Criteria.CriteriaQueryTranslator - put criteria=WORK_ORDER_NBR = String@-66999783(hash) alias=this0_
NHibernate.Loader.Criteria.CriteriaQueryTranslator: 2014-06-02 12:11:56,954 [9] DEBUG NHibernate.Loader.Criteria.CriteriaQueryTranslator - returning alias=this_ for criteria=WORK_ORDER_NBR = String@-66999783(hash)
SELECT this_.WORK_ORDER_NBR as WORK1_0_0_, this_.WORK_ORDER_TASK as WORK2_0_0_, this_.GEN_ARG as GEN3_0_0_, this_.HOLD_CODE as HOLD4_0_0_, this_.HOLD_RELEASE_DATE as HOLD5_0_0_ FROM TIDWOSTR this_ WHERE this_.WORK_ORDER_NBR = ?
NHibernate.AdoNet.AbstractBatcher: 2014-06-02 12:11:57,082 [9] DEBUG NHibernate.AdoNet.AbstractBatcher - Opened new IDbCommand, open IDbCommands: 1
NHibernate.AdoNet.AbstractBatcher: 2014-06-02 12:11:57,084 [9] DEBUG NHibernate.AdoNet.AbstractBatcher - Building an IDbCommand object for the SqlString: SELECT this_.WORK_ORDER_NBR as WORK1_0_0_, this_.WORK_ORDER_TASK as WORK2_0_0_, this_.GEN_ARG as GEN3_0_0_, this_.HOLD_CODE as HOLD4_0_0_, this_.HOLD_RELEASE_DATE as HOLD5_0_0_ FROM TIDWOSTR this_ WHERE this_.WORK_ORDER_NBR = ?
NHibernate.Type.StringType: 2014-06-02 12:11:57,088 [9] DEBUG NHibernate.Type.StringType - binding '00322384' to parameter: 0
NHibernate.Loader.Loader: 2014-06-02 12:11:57,097 [9] INFO  NHibernate.Loader.Loader - SELECT this_.WORK_ORDER_NBR as WORK1_0_0_, this_.WORK_ORDER_TASK as WORK2_0_0_, this_.GEN_ARG as GEN3_0_0_, this_.HOLD_CODE as HOLD4_0_0_, this_.HOLD_RELEASE_DATE as HOLD5_0_0_ FROM TIDWOSTR this_ WHERE this_.WORK_ORDER_NBR = :p0
NHibernate.SQL: 2014-06-02 12:11:57,108 [9] DEBUG NHibernate.SQL - SELECT this_.WORK_ORDER_NBR as WORK1_0_0_, this_.WORK_ORDER_TASK as WORK2_0_0_, this_.GEN_ARG as GEN3_0_0_, this_.HOLD_CODE as HOLD4_0_0_, this_.HOLD_RELEASE_DATE as HOLD5_0_0_ FROM TIDWOSTR this_ WHERE this_.WORK_ORDER_NBR = :p0;:p0 = '00322384' [Type: String (8)]
NHibernate.Connection.DriverConnectionProvider: 2014-06-02 12:11:57,111 [9] DEBUG NHibernate.Connection.DriverConnectionProvider - Obtaining IDbConnection from Driver
NHibernate.AdoNet.AbstractBatcher: 2014-06-02 12:11:57,295 [9] DEBUG NHibernate.AdoNet.AbstractBatcher - ExecuteReader took 181 ms
NHibernate.AdoNet.AbstractBatcher: 2014-06-02 12:11:57,297 [9] DEBUG NHibernate.AdoNet.AbstractBatcher - Opened IDataReader, open IDataReaders: 1
NHibernate.Loader.Loader: 2014-06-02 12:11:57,299 [9] DEBUG NHibernate.Loader.Loader - processing result set
NHibernate.Loader.Loader: 2014-06-02 12:12:19,606 [9] DEBUG NHibernate.Loader.Loader - done processing result set (0 rows)
NHibernate.AdoNet.AbstractBatcher: 2014-06-02 12:12:19,610 [9] DEBUG NHibernate.AdoNet.AbstractBatcher - Closed IDataReader, open IDataReaders :0
NHibernate.AdoNet.AbstractBatcher: 2014-06-02 12:12:19,611 [9] DEBUG NHibernate.AdoNet.AbstractBatcher - DataReader was closed after 22496 ms
NHibernate.AdoNet.AbstractBatcher: 2014-06-02 12:12:19,614 [9] DEBUG NHibernate.AdoNet.AbstractBatcher - Closed IDbCommand, open IDbCommands: 0
NHibernate.AdoNet.ConnectionManager: 2014-06-02 12:12:19,616 [9] DEBUG NHibernate.AdoNet.ConnectionManager - aggressively releasing database connection
NHibernate.Connection.ConnectionProvider: 2014-06-02 12:12:19,616 [9] DEBUG NHibernate.Connection.ConnectionProvider - Closing connection
NHibernate.Loader.Loader: 2014-06-02 12:12:19,619 [9] DEBUG NHibernate.Loader.Loader - total objects hydrated: 0
NHibernate.Engine.StatefulPersistenceContext: 2014-06-02 12:12:19,620 [9] DEBUG NHibernate.Engine.StatefulPersistenceContext - initializing non-lazy collections
NHibernate.AdoNet.ConnectionManager: 2014-06-02 12:12:19,624 [9] DEBUG NHibernate.AdoNet.ConnectionManager - after autocommit
NHibernate.Impl.SessionImpl: 2014-06-02 12:12:19,625 [9] DEBUG NHibernate.Impl.SessionImpl - transaction completion
NHibernate.AdoNet.ConnectionManager: 2014-06-02 12:12:19,626 [9] DEBUG NHibernate.AdoNet.ConnectionManager - aggressively releasing database connection
NHibernate.Impl.SessionImpl: 2014-06-02 12:12:19,630 [9] DEBUG NHibernate.Impl.SessionImpl - [session-id=4e41d21c-975d-44a2-8d39-a7c36268c157] running ISession.Dispose()
NHibernate.Impl.SessionImpl: 2014-06-02 12:12:19,632 [9] DEBUG NHibernate.Impl.SessionImpl - [session-id=4e41d21c-975d-44a2-8d39-a7c36268c157] executing real Dispose(True)
NHibernate.Impl.SessionImpl: 2014-06-02 12:12:19,634 [9] DEBUG NHibernate.Impl.SessionImpl - closing session
NHibernate.AdoNet.AbstractBatcher: 2014-06-02 12:12:19,635 [9] DEBUG NHibernate.AdoNet.AbstractBatcher - running BatcherImpl.Dispose(true)

【问题讨论】：

我也尝试过 .CreateQuery 和 .CreateCriteria 并且所有尝试都生成了相同的基本查询，但没有一个返回记录。然而，在每种情况下，生成的查询在复制到 SQL Developer 时都会返回记录。
使用where 子句生成的实际SQL 是什么？您是否使用分析工具查看 SQL，如果可以，您可以在此处发布吗？
我还没有做过任何 Oracle 分析（我实际上需要弄清楚如何去做，我在 MMSQL 方面的经验比 Oracle 多）。但是 NHibernate 使用 .ShowSql() 吐出的查询是：SELECT this_.WORK_ORDER_NBR as WORK1_3_0_, this_.WORK_ORDER_TASK as WORK2_3_0_, this_.GEN_ARG as GEN3_3_0_, this_.HOLD_CODE as HOLD4_3_0_, this_.HOLD_RELEASE_DATE as HOLD5_3_0_ FROMTIDWOSTR this_ WORK_ORDER_NBR = :p0; :p0 = '00322384' [Type: String (8)] 为什么markdown在cmets中不起作用，我似乎不能使用'code'。
好的，我能够确认上面列出的文字查询（减去 :p0 = '00322384' [Type: String (8)] 部分）实际上是命中 Oracle 并开始运行，我还不知道 :p0 参数是否被传递。还不确定如何在 Oracle 中检查...
下载试用版 NHProf hibernatingrhinos.com/products/nhprof 或使用 cough Log4Net

标签： oracle nhibernate where queryover

【解决方案1】：

通过将 NHibernate 设置为使用 Oracle 的 .NET 提供程序而不是默认提供程序，我能够实现这一点。为此，我必须执行以下操作：

1. Download and unzip/install the appropriate Oracle Data Access Components, in my case the 32bit ODAC for Oracle 11g (ODAC112040Xcopy_32bit.zip).
2. Add a reference to the Oracle.DataAccess.dll found in the .\odp.net20\odp.net\bin\2.x directory.
3. Copy the OraOps11w.dll found in the .\odp.net20\bin directory directly to my projects bin directory.
4. Copy the following DLLs to my projects bin directory (not 100% sure which of these are necessary, I just copied them all)
    .\instantclient_11_2\oci.dll
    .\instantclient_11_2\ocijdbc11.dll
    .\instantclient_11_2\ociw32.dll
    .\instantclient_11_2\orannzsbb11.dll
    .\instantclient_11_2\oraocci11.dll
    .\instantclient_11_2\oraociei11
    .\instantclient_11_2\orasql11
5. Updated my fluent configuration of NHibernate to use the Oracle driver as such:
      Fluently.Configure()
       .Database(OracleClientConfiguration.Oracle10.ConnectionString(OraConStr).Driver<NHibernate.Driver.OracleDataClientDriver>())
       .Mappings(m => m.FluentMappings.AddFromAssemblyOf<Program>())
       .BuildSessionFactory();

一旦进行了这些更改，所有表访问都可以正常工作，而且工作速度要快得多。因此，我将把它归结为提供商/驱动程序问题。我只能假设默认情况下 NHibernate 使用内置的 Microsoft System.Data.OracleClient 提供程序，该提供程序已经贬值了一段时间。

虽然这不能解释为什么当我在 NHibernate 之外直接使用 Microsoft 的提供程序时，我能够很好地访问该表。在我将项目提交给客户之后，我可能会对此进行进一步的研究，因为这是一个令人费解的困境，我不能留下一个没有解决的好难题。

【讨论】：

【解决方案2】：

也适用于 .Net 4.0。

【讨论】：