Table valued parameters - order of records to stored procedure

Question

I have a stored procedure that accepts a table-valued parameter.

I am passing a Datatable from my C# DAL. Are TVPs guaranteed to retain the order of rows when invoking the stored proc. My guess is that it should be (in which case this is a dumb question to ask). But I just want to be dead-sure about it.

Thanks

Vikas

Answer 1

Order should be preserved.

From MSDN:

Table-valued parameters offer more flexibility and in some cases better performance than temporary tables or other ways to pass a list of parameters. Table-valued parameters offer the following benefits:

• Do not acquire locks for the initial population of data from a client.
• Provide a simple programming model.
• Enable you to include complex business logic in a single routine.
• Reduce round trips to the server.
• Can have a table structure of different cardinality.
• Are strongly typed.
• Enable the client to specify sort order and unique keys.