In SQL Server, I'm trying to do a comparative analysis between two different table structures with regard to insert performance given different keys. Does it matter if I use a table variable to do this testing, or should I use a temporary table? Or do I need to go to the trouble of actually creating the tables and indexes? Specificall...
Possible Duplicate: How much faster is C++ than C#? Hello! Are there any cases in which C# is faster (has better performance) than C++ in practical use? I heard that generic collections are a significant performance advantage over stl - is that true? Has native code written in C# (unsafe block, pin pointers, Marshal...) the...
SELECT * FROM openorders_tracking WHERE id NOT IN (SELECT tracking_id FROM openorders_commission) SELECT * FROM openorders_tracking LEFT JOIN openorders_commission ON openorders_tracking.id=openorders_commission.tracking_id WHERE openorders_commission.id IS NULL I'm wondering both specifically for this query, and in general if...
Most of the times, when it comes to sort some data, we have two options: Sort on the SQL server -- use ORDER BY clause Sort on client one we get the data from the database When would you use one over the other and why? ...
Consider the following 2 scenarios: boolean b = false; int i = 0; while(i++ < 5) { b = true; } OR boolean b = false; int i = 0; while(i++ < 5) { if(!b) { b = true; } } Which is more "costly" to do? If the answer depends on used language/compiler, please provide. My main programming language is Java. Please do n...
I want to perform a comparison of multiple implementations of basically the same algorithm, written in Java, C++ and Python, the latter executed using Pypy, Jython and CPython on a Mac OS X 10.6.4 Macbook Pro with normal (non-SSD) HDD. It's a "decode a stream of data from a file" type of algorithm, where the relevant measurement is tota...
Hi guys, I have a project in which I'll have to process 100s if not 1000s of messages a second and process/plot this data on graphs accordingly (The user will search for a set of data in which the graph will be plotted in real time, not literally having to plot 1000s of values on a graph). I'm having trouble understanding using dlls fo...