Creating SQL stored Procedure for Muliple Line Items and single Header sending by BizTalk

Hi,

I have a requirement like this

My input schema is

<Header>

<Invoice ID>

<Client Name>

</Header>

<LineItems>

<LineItems1>

<LineItems2>

</LineItems>

single invoice have multiple line items and the procedure insert the data into tables for one invoice and have collection of line items .

my question is how to create stored procedure for this