SQL Server Last Full Week

While writing a new report today I’ve been drove mad while creating a dynamic query that selects the last full week. So here is the code for SQL Server, to save anyone else the pain:

dateadd(dd,0, datediff(dd,0,
   dateadd(day,-1*datepart(weekday,getdate())+1,dateadd(week,-1,getdate()))
))
dateadd(dd,0, datediff(dd,0,
   dateadd(day,7,dateadd(day,-1*datepart(weekday,getdate()),dateadd(week,-1,getdate())))
))