内连接多于一个字段答案

【问题标题】：Inner Join with more than a field内连接多于一个字段
【发布时间】：2009-08-26 13:36:41
【问题描述】：

精确地使用内连接进行选择，该选择在表之间的多个字段中具有关系

示例：

 DataSet dt = new Select().From(SubConta.Schema)
         .InnerJoin(PlanoContabilSubConta.EmpSubContaColumn, SubConta.CodEmpColumn)
         .InnerJoin(PlanoContabilSubConta.FilSubContaColumn, SubConta.CodFilColumn)
         .InnerJoin(PlanoContabilSubConta.SubContaColumn, SubConta.TradutorColumn)
         .Where(PlanoContabilSubConta.Columns.EmpContabil).IsEqualTo(cEmp)
         .And(PlanoContabilSubConta.Columns.FilContabil).IsEqualTo(cFil)
         .And(PlanoContabilSubConta.Columns.Conta).IsEqualTo(cTrad)
         .ExecuteDataSet();

但是生成的sql是错误的：

exec sp_executesql N'/* GetDataSet() */ SELECT [dbo].[SubContas].[CodEmp], [dbo].[SubContas].[CodFil], [dbo].[SubContas].[Tradutor], [dbo].[SubContas].[Descricao], [dbo].[SubContas].[Inativa], [dbo].[SubContas].[DataImplantacao]

 FROM [dbo].[SubContas]
 INNER JOIN [dbo].[PlanoContabilSubContas] ON [dbo].[SubContas].[CodEmp] = [dbo].[PlanoContabilSubContas].[EmpSubConta]
 INNER JOIN [dbo].[PlanoContabilSubContas] ON [dbo].[SubContas].[CodFil] = [dbo].[PlanoContabilSubContas].[FilSubConta]
 INNER JOIN [dbo].[PlanoContabilSubContas] ON [dbo].[SubContas].[Tradutor] = [dbo].[PlanoContabilSubContas].[SubConta]
 WHERE EmpContabil = @EmpContabil0
 AND FilContabil = @FilContabil1
 AND Conta = @Conta2
',N'@EmpContabil0 varchar(1),@FilContabil1 varchar(1),@Conta2 varchar(1)',@EmpContabil0='1',@FilContabil1='1',@Conta2='1'

生成这个sql应该怎么做？

exec sp_executesql N'/* GetDataSet() */ SELECT [dbo].[SubContas].[CodEmp], [dbo].[SubContas].[CodFil], [dbo].[SubContas].[Tradutor], [dbo].[SubContas].[Descricao], [dbo].[SubContas].[Inativa], [dbo].[SubContas].[DataImplantacao]

     FROM [dbo].[SubContas]
     INNER JOIN [dbo].[PlanoContabilSubContas] ON [dbo].[SubContas].[CodEmp] = [dbo].[PlanoContabilSubContas].[EmpSubConta] AND
     [dbo].[SubContas].[CodFil] = [dbo].[PlanoContabilSubContas].[FilSubConta] AND
     [dbo].[SubContas].[Tradutor] = [dbo].[PlanoContabilSubContas].[SubConta]
     WHERE EmpContabil = @EmpContabil0
     AND FilContabil = @FilContabil1
     AND Conta = @Conta2
    ',N'@EmpContabil0 varchar(1),@FilContabil1 varchar(1),@Conta2 varchar(1)',@EmpContabil0='1',@FilContabil1='1',@Conta2='1'

【问题讨论】：

标签： subsonic inner-join

【解决方案1】：

看起来你不能在 SubSonic 2 中加入多个列，你可以创建一个 SQL 视图，按照你的意愿加入，然后让 SubSonic 为该视图生成一个模型。

【讨论】：