This example creates one Sales Order with 2 order lines. Note how the FQSaveToCache field is set to True except on the last line.

INSERT INTO "SalesOrderLine" ("CustomerRefListID", "TemplateRefListID","RefNumber", "SalesOrderLineItemRefListID", "SalesOrderLineDesc", "SalesOrderLineQuantity", "SalesOrderLineRate", "SalesOrderLineAmount", "SalesOrderLineSalesTaxCodeRefListID","FQSaveToCache") VALUES ('120000-1045537156','C0000-1080110273','1015', '90000-1045537150', '4m Steel Ladder', 1.00000, 1.00000, 150.00, '90000-1045536338', 1)

INSERT INTO "SalesOrderLine" ("CustomerRefListID", "TemplateRefListID","RefNumber", "SalesOrderLineItemRefListID", "SalesOrderLineDesc", "SalesOrderLineQuantity", "SalesOrderLineRate", "SalesOrderLineAmount", "SalesOrderLineSalesTaxCodeRefListID","FQSaveToCache") VALUES ('120000-1045537156','C0000-1080110273','1015', '150001-1045625669', 'Paint Brush:Big', 1.00000, 1.00000, 11.60, '90000-1045536338', 0)

Where:
CustomerRefListID is the existing Customer ListID
found by using "Select * from Customer"
TemplateRefListID is the Sales Order Template ListID
found by using "Select * from Template"
SalesOrderLineItemRefListID is the existing Inventory Item ListIDs
found by using:

SELECT ListID, FullName, Description, Type FROM Item

In my case, my Australian QuickBooks 2004 sample file returned the following items:

In the Sales Order inserts above I used the following Inventory Items:
"4m Steel Ladder" ListID:'90000-1045537150' (in Row 17 above) and
"Paint Brush:Big" ListID:'150001-1045625669' (in Row 25 above)
SalesOrderLineSalesTaxCodeRefListID is the SalesTaxCode ListID
found by using "Select * from SalesTaxCode"

Note: Outside USA, SalesOrderLineSalesTaxCodeRefListID is SalesOrderLineTaxCodeRefListID instead to make:
SalesOrderLineTaxCodeRefListID the TaxCode ListID
found by using "Select * from TaxCode"