原始的SQL命令不执行使用实体框架

Question

我有麻烦使用以下原料SQL命令和Entity Framework按预期工作

databaseContext.Database.ExecuteSqlCommand 
     (@"INSERT INTO NatureOfBusinessRiskClass 
      (ProductSectionId , 
      NatureOfBusinessId , 
      RiskClassId , 
      ConstructionType , 
      AreaType , 
      SumInsuredLimit , 
      MaximumRate , 
      MinimumRate , 
      IsAggregated , 
      CreatedBy , 
      CreateDate) 
     SELECT P.Id,T.NatureOdBusinessId,T.RiskClassId,ConstructionType,AreaType,0.00, 
     0,0,0,1,GETDATE() FROM TempNatureBusiness T 
      CROSS JOIN TempAreaType A 
      CROSS JOIN TempConstructionType C 
      CROSS JOIN ProductSection P"); 

当我执行Microsoft SQL Server管理Studion一切都在这个SQL语句播种数据，但当我使用实体框架时，表格不会被填充，也不会产生异常。

Answer 1

的问题是，我还使用了RAW SQL命令来填充这个查询靠什么来生成它的内容的表格，例如

​​

然后我执行我遇到的麻烦的命令，

databaseContext.Database.ExecuteSqlCommand 
    (@"INSERT INTO NatureOfBusinessRiskClass 
     (ProductSectionId , 
     NatureOfBusinessId , 
     RiskClassId , 
     ConstructionType , 
     AreaType , 
     SumInsuredLimit , 
     MaximumRate , 
     MinimumRate , 
     IsAggregated , 
     CreatedBy , 
     CreateDate) 
    SELECT P.Id,T.NatureOdBusinessId,T.RiskClassId,ConstructionType,AreaType,0.00, 
    0,0,0,1,GETDATE() FROM TempNatureBusiness T 
     CROSS JOIN TempAreaType A 
     CROSS JOIN TempConstructionType C 
     CROSS JOIN ProductSection P"); 

最后我执行

databaseContext.SaveChanges(); 

显然，这statemnent将提交我的数据库更改，因此TempAreaType和TempConstructionType表在执行第三个命令时没有任何数据。当我在Microsoft SQL Server Management Studio中执行commadn时，我的更改已被提交到数据库，并且该命令已运行。

的解决方案是调用

databaseContext.SaveChanges(); 

第一个命令，然后再次在结束后

，例如

databaseContext.Database.ExecuteSqlCommand("INSERT INTO TempAreType..."); 
databaseContext.Database.ExecuteSqlCommand("INSERT INTO TempConstructionType..."); 

databaseContext.SaveChanges(); 

databaseContext.Database.ExecuteSqlCommand 
    (@"INSERT INTO NatureOfBusinessRiskClass 
     (ProductSectionId , 
     NatureOfBusinessId , 
     RiskClassId , 
     ConstructionType , 
     AreaType , 
     SumInsuredLimit , 
     MaximumRate , 
     MinimumRate , 
     IsAggregated , 
     CreatedBy , 
     CreateDate) 
    SELECT P.Id,T.NatureOdBusinessId,T.RiskClassId,ConstructionType,AreaType,0.00, 
    0,0,0,1,GETDATE() FROM TempNatureBusiness T 
     CROSS JOIN TempAreaType A 
     CROSS JOIN TempConstructionType C 
     CROSS JOIN ProductSection P"); 

databaseContext.SaveChanges();