Should you make multiple insert calls or pass XML?

Question

I have an account creation process and basically when the user signs up, I have to make entries in mutliple tables namely User, Profile, Addresses. There will be 1 entry in

Answer 1

If you want to insert records in multiple table then using XML parameter is a complex method. Creating Xml in .net and extracting records from xml for three diffrent tables is complex in sql server.

Executing queries within a transaction is easy approach but some performance will degrade there to switch between .net code and sql server.

Best approach is to use table parameter in storedprocedure. Create three data table in .net code and pass them in stored procedure.

--Create Type TargetUDT1,TargetUDT2 and TargetUDT3 for each type of table with all fields which needs to insert

CREATE TYPE [TargetUDT1] AS TABLE
             (
             [FirstName] [varchar](100)NOT NULL,
             [LastName] [varchar](100)NOT NULL,
             [Email] [varchar](200) NOT NULL
             )

--Now write down the sp in following manner.

 CREATE PROCEDURE AddToTarget(
     @TargetUDT1 TargetUDT1 READONLY,
     @TargetUDT2 TargetUDT2 READONLY,
     @TargetUDT3 TargetUDT3 READONLY)
     AS
 BEGIN
       INSERT INTO [Target1]
       SELECT * FROM @TargetUDT1

       INSERT INTO [Target2]
       SELECT * FROM @TargetUDT2

       INSERT INTO [Target3]
       SELECT * FROM @TargetUDT3
 END

In .Net, Create three data table and fill the value, and call the sp normally.