Java revolutionized software development 30 years ago. Even with the rise of web apps, there's a bright future for Java ...

Let’s look at the SQL code first: SQL can’t keep grouped subsets ... The grouping expression calculates the difference between the event’s own sequence number (the number after ‘e’, ranging from 1 to ...

SQL sets are unordered; the members within them have no defined position, so they cannot be referenced by the position, and the window function lag is needed to calculate the previous event. If the ...