See if CLR Integration Code Access Security in BOL and http://msdn.microsoft.com/en-us/library/cb6t8dtz.aspx helps.

>I have created a Stored Procedure using the .NET SQL CLR Integration. I am trying to make an OleDB connection to a VFP database. I am getting the following error message when executing the Stored Procedure:
>

>Msg 6522, Level 16, State 1, Procedure clr_pic_GetBacklogByOperation, Line 0
>A .NET Framework error occurred during execution of user-defined routine or aggregate "clr_pic_GetBacklogByOperation":
>System.Security.SecurityException: Request for the permission of type 'System.Data.OleDb.OleDbPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
>System.Security.SecurityException:
> at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
> at System.Security.CodeAccessPermission.Demand()
> at System.Data.OleDb.OleDbCommand.ExecuteReader(CommandBehavior behavior)
> at System.Data.OleDb.OleDbCommand.ExecuteReader()
> at StoredProcedures.pic_GetBacklogByOperation(Int32 op_Num)
>
>I've spent several hours searching the internet for possible solutions with no luck. Does anybody have any idea how to fix this problem?