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Are there disadvantages to using a generic varchar(255) for all text-based fields?
...thus in temp tables or sorted results.
I have helped MySQL users who unknowingly created 1.5GB temp tables frequently and filled up their disk space. They had lots of VARCHAR(255) columns that in practice stored very short strings.
It's best to define the column based on the type of data that you...
Favicon dimensions? [duplicate]
...icon files can be
either 16×16 or 32×32 pixels in size,
and either 8-bit or 24-bit in color
depth (note that GIF files have a
limited, 256 color palette entries).
I think the best way is to use a 32x32 gif and test it with different browsers.
...
STL or Qt containers?
...age". You shouldn't believe marketing. Profile QList<double> on a 32-bit architecture for memory use to see for yourself.
– Marc Mutz - mmutz
May 3 '11 at 5:34
11
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Removing packages installed with go get
...owLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\...
Checking if a string can be converted to float in Python
...t(value)
return True
except ValueError:
return False
Don't get bit by the goblins hiding in the float boat! DO UNIT TESTING!
What is, and is not a float may surprise you:
Command to parse Is it a float? Comment
-------------------------------------- ----------...
What are allowed characters in cookies?
...cookie behaviour but none thus far actually reflect the real world.
RFC 2109 was an attempt to codify and fix the original Netscape cookie_spec. In this standard many more special characters are disallowed, as it uses RFC 2616 tokens (a - is still allowed there), and only the value may be specifie...
What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?
... reasons. First, a process can be idle, not consuming any CPU time, for arbitrary periods (for example, a daemon process waiting for a client to connect to it over the network), so it may do nothing for days at a time of elapsed time. Second, if it is running, it may have multiple threads, and if ...
Get current time as formatted string in Go?
...that date and time in the time package (20060102150405)? It seems a little bit quirky to me, but as long as it works I suppose it doesn't matter as long as we don't make an error when coding it. I guess they didn't see fit to provide a constant for that format, and match the string pattern.
...
How to add a custom loglevel to Python's logging facility
...
Thanks. I've done quite a bit of work cobbling something like this together and this QA was very helpful, so I tried to add something on.
– Mad Physicist
Dec 1 '16 at 14:19
...
Eclipse JPA Project Change Event Handler (waiting)
...e.jpt.* disabled/plugins
mv features/org.eclipse.jpt.* disabled/features
windows:
mkdir disabled
mkdir disabled\features
mkdir disabled\plugins
move plugins\org.eclipse.jpt.* disabled\plugins
for /D /R %D in (features\org.eclipse.jpt.*) do move %D disabled\features
3.) Restart eclipse.
Afte...