anchor.diff:  open System.Transactions
   
   [<Fact>]
  -let localTransaction() =
  +let implicitTransaction() =
       DeleteBitCoin().Execute(bitCoinCode) |> ignore
       begin
           use tran = new TransactionScope() in
  
positive.code:     Assert.Equal(0, GetBitCoin().Execute(bitCoinCode) |> Seq.length)
  
  [<Fact>]
  let implicitTransaction() =
      DeleteBitCoin().Execute(bitCoinCode) |> ignore
      use conn = new System.Data.SqlClient.SqlConnection(connectionString)
      conn.Open()
  
negative.code: open System
  open System.Data
  open System.Data.SqlClient
  open Xunit
  
  [<Literal>]
  