We are trying to create a TVF that executes a CLR Stored Procedure we wrote to use the results from the SP and transform them for the purposes of returning to the user as a table.
Code Snippet
[SqlFunction ( FillRowMethodName = "FillRow",
TableDefinition = "CustomerID nvarchar(MAX)",
SystemDataAccess = SystemDataAccessKind.Read,
DataAccess = DataAccessKind.Read,
IsDeterministic=false)]
public static IEnumerable GetWishlist () {
using (SqlConnection conn = new SqlConnection ( "Context Connection=true" )) {
List<string> myList = new List<string> ();
conn.Open ();
SqlCommand command = conn.CreateCommand ();
command.CommandText = "GetObject";
command.Parameters.AddWithValue ( "@.map", "Item" );
command.CommandType = System.Data.CommandType.StoredProcedure;
using ( SqlDataReader reader = command.ExecuteReader ( System.Data.CommandBehavior.SingleRow )) {
if (reader.Read ()) {
myList.Add ( reader[0] as string );
}
}
return (IEnumerable)myList;
}
}
When command.ExecuteReader is called, I am getting an "Object not defined" error. However, the stored procedure can be used in SQL Management Studio just fine.
Code Snippet
EXEC GetObject 'Item'Is there some sorf of trick I am missing?
Thank you!
Did a little more debugging on our other Stored Procedure within this current scenario and it looks like SqlContext.Pipe is NULL. Now why would the SqlContext.Pipe be null? Anyone?|||You cannot use SqlPipe inside TVF, as well as call stored procedures. This restriction is based on requirement that functions must not change the content of the database, so if functions would be able to call SPs they would be able to update database through these SPs.
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