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SQL Joins Vs SQL Subqueries (Performance)?
... have serious doubt on this answer, since most DBMS, definitely SQL Server 2008 and later, translate the single ID subquery (not correlated, meaning: not referencing multiple outer query columns) into a relatively fast semi-join. Also, as previously noted in another answer, the first, real join will...
How do I programmatically determine operating system in Java?
...
Oct. 2008:
I would recommend to cache it in a static variable:
public static final class OsUtils
{
private static String OS = null;
public static String getOsName()
{
if(OS == null) { OS = System.getProperty("os.n...
I ran into a merge conflict. How can I abort the merge?
...
2008
If your git version is >= 1.6.1, you can use git reset --merge.
Also, as @Michael Johnson...
How to shrink the .git folder
...necessary as it became the default since v1.5.5-rc0 (commit 25ee973, March 2008).
– Lekensteyn
Aug 9 '13 at 10:22
...
How can I measure the actual memory usage of an application or process?
...ginal question (rev 1), it has been edited several times and is quite old (2008). The original question just asked how to measure the memory usage of a process. Feel free to edit questions and answers, though, if things are outdated. :)
– DustinB
Jul 31 '14 at ...
What is the best open XML parser for C++? [duplicate]
...peed of
strlen function executed on the
same data.
On a modern CPU (as of 2008) the
parser throughput is about 1 billion
characters per second. See
Performance section in the Online
Manual.
Small memory footprint of the code
and created DOM trees.
A headers-only implementation,
simplifying the inte...
What's the fastest way to convert String to Number in JavaScript?
...I'm getting fastest for Number() in Chrome 37.0.2062.124 on Windows Server 2008 R2 / 7 and ParseInt() in Firefox 30.0 with implicit being the slowest for both. Also, you might consider including string literal floats in the test for general comparison. My guess is that it may change the order in s...
Accessing Imap in C# [closed]
... practically dead. The samples do not build, out of the box, in either VS 2008 or 2010. I upconverted them then had to wade through 16 reference issues. The documentation is out of date and the CodePlex page sit unanswered for any issues/comments in the past year or more. I gave up and ended up ...
Howto: Clean a mysql InnoDB storage engine?
...ice article why to choose a proper innodb_log_file_size. Later, on Nov 21, 2008, Percona followed up with another article on how to calculate the proper size based on peak workload keeping one hour's worth of changes.
I have since written posts in the DBA StackExchange about calculating the log siz...
How to drop column with constraint?
How to drop a column which is having Default constraint in SQL Server 2008?
8 Answers
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