Fast loading relational data

I am searching for a way to fast load relation data. I know how to load data fast but how can i store relation data fast.
For example :
Table1 ( tabel1Id int identity , name varchar(255) )
Table2 ( tabel2Id int identity , table2Id , name varchar(255))
When i insert 50 records into Table1 i can't get the 50 identity fields back, to insert the related data into Table2.
I think one of the solutions could be returning a selection of Table1 joined with syslockinfo, but i have no idea how to do it.
Does anyone have an idea?

Add uniqueidentifier column to your master table.

When inserting, generate the value by newid() function and insert it alongside your 50 records. Then you can easily find all the records inserted.

|||Thank you for your reply.
I also thought of that. But i also thought that it must be possible to join with syslockinfo.
|||

I would suggest that you correlate the values in the insert. So, say you have to insert an invoice and line items.

invoiceNumber
000000333
000000334

invoiceNumber product amount
000000333 widget 10
000000334 wadget 11
then the invoice insert is easy, and the line item insert is something like:

insert into invoiceLineItem (invoiceId, product, amount)
select invoiceId, product, amount
from invoice
join (select '000000333' as invoiceNumber,'widget' as product,10 as amount
union all
select '000000334','wadget',11) as newInvoiceLines
on invoice.invoiceNumber = newInvoiceLines.invoiceNumber

Of course exactly how you get the bold stuff will depend on the format of your data (like a spreadsheet, or from a user interface, XML, etc. In reality I would have expected you to have to get a productId as well.