Question

For one of our recent projects, we created a stored procedure which generated SQL and executed it in the end. The purpose of the stored procedure was to create pivots based on dynamic columns.

When trying to access it using Entity Framework using the usual function import when I tried to access the stored procedure, it would return anything as it requires a dynamic type to store the retrieved data.

Which in our case was a dynamic query and linq was unable to get the returned columns. So to work around what I did was call the stored procedure in the traditional way i.e. creating a DataAdapter and SqlCommand object and SqlConnection object.

But what is the proper way of calling this kind of stored procedure using Entity Framework?

Thanks in advance.

Answer 1

Entity framework doesn’t support dynamic result sets from stored procedures. It also doesn’t support stored procedures using dynamic SQL because it cannot get static result set declaration from the procedure. So you must either ensure that your procedure will always return static type (same number of columns with same names) or you must use traditional ADO.NET to execute that procedure.