INSERT INTO testtable_10
 ([City Key], [Customer Key], [Stock Item Key], [Order Date Key], [Picked Date Key], [Salesperson Key], [Picker Key],
 [WWI Order ID], [WWI Backorder ID], Description, Package, Quantity, [Unit Price], [Tax Rate], [Total Excluding Tax],
 [Tax Amount], [Total Including Tax], [Lineage Key])
 SELECT TT.[City Key], TT.[Customer Key], TT.[Stock Item Key], TT.[Order Date Key], TT.[Picked Date Key],
 TT.[Salesperson Key], TT.[Picker Key], TT.[WWI Order ID], TT.[WWI Backorder ID], TT.Description, TT.Package,
 TT.Quantity, TT.[Unit Price], TT.[Tax Rate], TT.[Total Excluding Tax], TT.[Tax Amount], TT.[Total Including Tax],
 TT.[Lineage Key] FROM testtable TT
GO