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Why are joins bad when considering scalability?
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Scalability is all about pre-computing (caching), spreading out, or paring down the repeated work to the bare essentials, in order to minimize resource use per work unit. To scale well, you don't do anything you don't need to in volu...
How to recursively delete an entire directory with PowerShell 2.0?
What is the simplest way to forcefully delete a directory and all its subdirectories in PowerShell? I am using PowerShell V2 in Windows 7.
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The transaction log for the database is full
...uire lots of space for the log file, I created a second log file and made it huge. Once the project is complete we then removed the extra log file.
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How is the fork/join framework better than a thread pool?
What are the benefits of using the new fork/join framework over just simply splitting the big task into N subtasks in the beginning, sending them to a cached thread pool (from Executors ) and waiting for each task to complete? I fail to see how using the fork/join abstraction simplifies the prob...
Javascript reduce on array of objects
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After the first iteration your're returning a number and then trying to get property x of it to add to the next object which is undefined and maths involving undefined results in NaN.
try returning an object contain an x property with the ...
PHPMyAdmin Default login password [closed]
...n of Fedora 14 and installed the phpMyAdmin module. When I run phpMyAdmin, it asks me for a username and password.
4 Answe...
Do checkbox inputs only post data if they're checked?
Is it standard behaviour for browsers to only send the checkbox input value data if it is checked upon form submission?
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What is the difference between string primitives and String objects in JavaScript?
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JavaScript has two main type categories, primivites and objects.
var s = 'test';
var ss = new String('test');
The single quote/double quote patterns are identical in terms of functionality. That aside, the behaviour you are trying to name is called auto-boxing. So what...
How can I create tests in Android Studio?
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This answer is for people who are just getting started with Android testing. I will provide two simple examples to help you see how testing works. If you follow along for the next 10 minutes, you will be all set up to start adding your tests to your own app. I think you'll be surp...
select * vs select column
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It always pulls a tuple (except in cases where the table has been vertically segmented - broken up into columns pieces), so, to answer the question you asked, it doesn't matter from a performance perspective. However, for ma...