...his will return a sequence (IEnumerable<string>) of Author values -- one per unique value. share | improve this answer | follow | ...

...project, especially use-case mapping, but is it really practical? I've done a few co-op work terms, and it appears that UML is not used heavily in the industry. Is it worth the time during a project to create UML diagrams? Also, I find that class diagrams are generally not useful, because it's ...

I am working on an application and one design approach involves extremely heavy use of the instanceof operator. While I know that OO design generally tries to avoid using instanceof , that is a different story and this question is purely related to performance. I was wondering if there is any per...

...er. The last element in the NodeList is the most specific, each preceding one should be a parent, grandparent, and so on. share | improve this answer | follow ...

...or Day, 2M for 2 Months etc. for different sampling intervals, and in case one has time series data with time stamp, we can go for granular sampling intervals such as 45Min for 45 min, 15Min for 15 min sampling etc. share ...

...e, returns tuple of 2 strings). It's obvious what the output is (obviously one is going to be the characters for which the predicate was true and the other for which it was false, but it's not clear which is which). It's the documentation that clears this up (and pattern matching can be used to make...

...t the db server will save bandwidth, and disk io if the aggregates can be done inside indexes) convenience (sql is not the best language for complex work - especially not great for procedural work, but very good for set-based work; lousy error-handling, though) As always, if you do bring the data ...

...allow any object that behaves like an int, instead of mandating that it be one. BUT The classical Python mentality, though, is that it's easier to ask forgiveness than permission. In other words, don't check whether x is an integer; assume that it is and catch the exception results if it isn't: try:...

...ingle class and to the classloader itself need to go the way of the dodo. One possible solution to your problem is to have a Classloader for every jar file, and a Classloader for each of the AppServers that delegates the actual loading of classes to specific Jar classloaders. That way, you can poi...

... tables, as use of indexes means it doesn't bother reading all the rows on one of the tables. a full outer join must always read all rows in both tables (or the relevant indexes). In the case where indexes are not enough, or an underlying heap has to be read to output the needed columns then a full ...