SUM(monthly_cases) over (Order by record_month rows between unbounded preceding and 1 preceding), monthly_cases*100.0/SUM(monthly_cases) over (Order by record_month ...

The join operation is used to combine records of two or more tables. This essay explains the handling of join operations using SQL and SPL. By exploring solutions and basic principles of the two ...

Abstract: We study the problem of continuous relational query processing in Internet-scale overlay networks realized by distributed hash tables. We concentrate on the case of continuous two-way ...