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How do you search an amazon s3 bucket?
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There are (at least) two different use cases which could be described as "search the bucket":
Search for something inside every object stored at the bucket; this assumes a common format for all the objects in that bucket (say, text files...
Xcode changes unmodified storyboard and XIB files
.../.m files are opened and removed when Xcode suspects they are outdated (at least older Xcodes behave like this). When you save the storyboard, the current version of the cache is dumped, which is why the <class> section often changes or even disappears.
I have not reverse-engineered Xcode; I...
@OneToMany List vs Set difference
...ch avoids the cartesian product), or to use a Set instead of a List for at least one of the collections.
It's often hard to use Sets with Hibernate when you have to define equals and hashCode on the entities and don't have an immutable functional key in the entity.
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Learning Regular Expressions [closed]
... (zero or more times)
+ (one or more times)
{n} (exactly n times)
{n,} (at least n times)
{n,m} (at least n times but no more than m times)
Putting some of these blocks together, the pattern [Nn]*ick matches all of
ick
Nick
nick
Nnick
nNick
nnick
(and so on)
The first match demonstrates an imp...
How to show particular image as thumbnail while implementing share on Facebook?
...ver, one important detail was overlooked: The size of the image MUST be at least 200 X 200 px, otherwise Facebook will substitute the thumbnail with the first available image that meets the criteria on the page. Another fact is that the minimum required is to include the 3 metas that Facebook requir...
T-SQL: Using a CASE in an UPDATE statement to update certain columns depending on a condition
...then the update will fail. Your final "efficient" query is invalid sql, at least in TSQL. Did you test this on a specific engine and it worked for you?
– pqsk
Feb 24 '15 at 14:07
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Server.UrlEncode vs. HttpUtility.UrlEncode
... avoid any variant of UrlEncode, and instead use Uri.EscapeDataString - at least that one has a comprehensible behavior.
Let's see...
HttpUtility.UrlEncode(" ") == "+" //breaks ASP.NET when used in paths, non-
//standard, undocumented.
Uri.EscapeUriString("a?b=e")...
MySQL vs MySQLi when using PHP [closed]
...s on LONGTEXT columns. This bug has been raised in various forms since at least 2005 and remains broken. I'd honestly like to use prepared statements but mysqli just isn't reliable enough (and noone seems to bother fixing it). If you really want prepared statements go with PDO.
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Creating a temporary directory in Windows?
..." of unmanaged p/invoke code is worth it. Most would say it is not, but at least you now have a choice.
CreateParentFolder() is left as an exercise to the student. I use Directory.CreateDirectory(). Be careful getting the parent of a directory, since it is null when at the root.
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Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
...g definitive, but I have my own ideas:
It would violate the principle of least surprise - there may be a damned good reason why I want to lay my elements out in a specific order, regardless of whether or not it's the most space-efficient, and I would not want the compiler to rearrange those elemen...