This is the second article of a series dedicated to implementing Recursive Common Table Expression in different kind of scenarios, and this time I will address another use case; it basically consists in filling gaps inside a sequence of an incomplete range of dates.  I would like to comment that the next example has been taken from MSDN forum, I have chosen because I think it is an excellent way to prove how versatile the recursive CTE is, the most creative solution was proposed by Peter Larsson (swePeso) and he brought us  a valid and optimal implementation which is useful since SQL Server 2005 and up versions.