Oracle Number cast to .Net decimal











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I am mapping an Entity Framework project to an existing Oracle database. I have a class:



public class Order 

{

   [Key]

   public string OrderNo {get;set;} // Oracle type VARCHAR2(100)

   public decimal Cost {get;set;} // Oracle type NUMBER (no precision)

}



public DbSet<Order> Orders {get;set;}


Then executing the following:



context.Orders.Find("0001");


returns the error Specified cast is not valid!. This looks like its caused by a very large decimal value in the COST column. I have tried setting the following attribute on the entity:



[Column("ROUND(COST,2)"]

public decimal Cost {get;set;}


Which causes an exception with the generated SQL OracleException: ORA-00904: "Extent1"."ROUND(COST,2)": invalid identifier. I would like it to generate ROUND("Extent1".COST,2).



Is there a way to force the database to convert the column as part of the SQL statement?






c# oracle entity-framework-6 ef-code-first







share|improve this question


























    up vote
    2
    down vote

    favorite












    I am mapping an Entity Framework project to an existing Oracle database. I have a class:



    public class Order 
    
{
    
   [Key]
    
   public string OrderNo {get;set;} // Oracle type VARCHAR2(100)
    
   public decimal Cost {get;set;} // Oracle type NUMBER (no precision)
    
}
    

    
public DbSet<Order> Orders {get;set;}


    Then executing the following:



    context.Orders.Find("0001");


    returns the error Specified cast is not valid!. This looks like its caused by a very large decimal value in the COST column. I have tried setting the following attribute on the entity:



    [Column("ROUND(COST,2)"]
    
public decimal Cost {get;set;}


    Which causes an exception with the generated SQL OracleException: ORA-00904: "Extent1"."ROUND(COST,2)": invalid identifier. I would like it to generate ROUND("Extent1".COST,2).



    Is there a way to force the database to convert the column as part of the SQL statement?






    c# oracle entity-framework-6 ef-code-first







    share|improve this question
























      up vote
      2
      down vote

      favorite









      up vote
      2
      down vote

      favorite











      I am mapping an Entity Framework project to an existing Oracle database. I have a class:



      public class Order 
      
{
      
   [Key]
      
   public string OrderNo {get;set;} // Oracle type VARCHAR2(100)
      
   public decimal Cost {get;set;} // Oracle type NUMBER (no precision)
      
}
      

      
public DbSet<Order> Orders {get;set;}


      Then executing the following:



      context.Orders.Find("0001");


      returns the error Specified cast is not valid!. This looks like its caused by a very large decimal value in the COST column. I have tried setting the following attribute on the entity:



      [Column("ROUND(COST,2)"]
      
public decimal Cost {get;set;}


      Which causes an exception with the generated SQL OracleException: ORA-00904: "Extent1"."ROUND(COST,2)": invalid identifier. I would like it to generate ROUND("Extent1".COST,2).



      Is there a way to force the database to convert the column as part of the SQL statement?






      c# oracle entity-framework-6 ef-code-first







      share|improve this question













      I am mapping an Entity Framework project to an existing Oracle database. I have a class:



      public class Order 
      
{
      
   [Key]
      
   public string OrderNo {get;set;} // Oracle type VARCHAR2(100)
      
   public decimal Cost {get;set;} // Oracle type NUMBER (no precision)
      
}
      

      
public DbSet<Order> Orders {get;set;}


      Then executing the following:



      context.Orders.Find("0001");


      returns the error Specified cast is not valid!. This looks like its caused by a very large decimal value in the COST column. I have tried setting the following attribute on the entity:



      [Column("ROUND(COST,2)"]
      
public decimal Cost {get;set;}


      Which causes an exception with the generated SQL OracleException: ORA-00904: "Extent1"."ROUND(COST,2)": invalid identifier. I would like it to generate ROUND("Extent1".COST,2).



      Is there a way to force the database to convert the column as part of the SQL statement?






      c# oracle entity-framework-6 ef-code-first




      c# oracle entity-framework-6 ef-code-first






      share|improve this question













      share|improve this question











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      share|improve this question










      asked Nov 12 at 16:20









      Dominic Cotton

      441418




      441418





























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