Question

我遇到以下错误：在from子句中多次指定了关联名称'accountali4 _'。。我在C＃中使用Fluent Nhibernate。

有人知道如何解决吗？谢谢

仅当我加入“ SwiftCommonData”时才会发生此错误

编辑：添加更多信息。 Mt942Message是TypedMessage的子类，我注意到与她的任何连接都会引发异常。

FxSwiftMessage swiftAlias = null;
BasicHeaderBlock basicHeaderAlias = null;
ApplicationHeaderBlock appHeaderAlias = null;
Mt942Message typedAlias = null;
SwiftCommonData accountAlias = null;

return CurrentSession.QueryOver<FxSwiftMessage>(() => swiftAlias)
            .JoinAlias(() => swiftAlias.BasicHeader, () => basicHeaderAlias)
            .JoinAlias(() => swiftAlias.ApplicationHeader, () => appHeaderAlias)
            .JoinAlias(() => swiftAlias.Text.TypedMessage, () => typedAlias)
            //.JoinAlias(() => typedAlias.AccountIdentification, () => accountAlias)
            .Where(() => typedAlias.GetType() == typeof(Mt942Message))
            .And(() => ((DateTime)appHeaderAlias.InputDate).Date == referenceDate)
            .And(() => basicHeaderAlias.LogicalTerminalAddress.IsLike(bicRecipient, MatchMode.Start))
            .And(() => appHeaderAlias.RecipientsBic.IsLike(bicSender, MatchMode.Start))
            .And(() => swiftAlias.Process == false)
            //.And(() => accountAlias.Data == account)
            .TransformUsing(Transformers.DistinctRootEntity)
            .List<FxSwiftMessage>();

这里是Fluent Nhibernate生成的SQL，是“ accountali4_”的四倍。

FROM TB_BTG_SWIFT_MESSAGE this_ 
    inner join TB_BTG_SWIFT_BASIC_HEADER basicheade1_ on this_.ID_BASIC_HEADER=basicheade1_.ID_BASIC_HEADER 
    inner join TB_BTG_SWIFT_APPLICATION_HEADER appheadera2_ on this_.ID_APPLICATION_HEADER=appheadera2_.ID_APPLICATION_HEADER 
    inner join TB_BTG_SWIFT_TYPED_MESSAGE typedalias3_ on this_.ID_TYPED_MESSAGE=typedalias3_.ID_TYPED_MESSAGE 
    inner join TB_BTG_SWIFT_COMMON_DATA accountali4_ on typedalias3_.ID_ACCOUNT_IDENTIFICATION=accountali4_.ID_COMMON 
    inner join TB_BTG_SWIFT_COMMON_DATA accountali4_ on typedalias3_.ID_ACCOUNT_IDENTIFICATION=accountali4_.ID_COMMON 
    inner join TB_BTG_SWIFT_COMMON_DATA accountali4_ on typedalias3_.ID_ACCOUNT_IDENTIFICATION=accountali4_.ID_COMMON 
    inner join TB_BTG_SWIFT_COMMON_DATA accountali4_ on typedalias3_.ID_ACCOUNT_IDENTIFICATION=accountali4_.ID_COMMON

此问题不是以下内容的重复：The correlation name 'MR' is specified multiple times in a FROM clause

Nhibernate对SQL进行控制。我想了解为什么，如果我在映射或查询中犯了一个错误。

NHibernate C＃-在from子句中多次指定了相关名称“ X”

0 个答案: