difference with lag length truncated and missing values converted to zero; If you do not specify n, the number of periods is assumed to be one. For example, LAG(X) is the same as LAG1(X). No more than ...

I want to design a query to compute some returns for stock data and in searching the 'SQL Server Books Online' I find a very small and not so helpful at all help section on the lead and lag functions.

How an input series enters the model is called its transfer function. Thus, ARIMA models with input series are sometimes referred to as transfer function models. In the preceding regression and ...