大约有 44,000 项符合查询结果（耗时：0.0496秒） [XML]
When to use a View instead of a Table?
..." temporarily in another table for faster access. This is done to speed up read access when the view is complex. But that doesn't help you in your case because a materialized view is still a view, not data on its own. Your approach is probably OK.
– Lukas Eder
...
Lists in ConfigParser
...combination of ConfigParser and JSON:
[Foo]
fibs: [1,1,2,3,5,8,13]
just read it with:
>>> json.loads(config.get("Foo","fibs"))
[1, 1, 2, 3, 5, 8, 13]
You can even break lines if your list is long (thanks @peter-smit):
[Bar]
files_to_check = [
"/path/to/file1",
"/path/to/fil...
Undefined symbols for architecture armv7
...
I had the same issue. Didn't really read the install notes properly so hadn't noticed that the new version of bugsense needs libz binary added in the build phases.
– Max MacLeod
Nov 8 '12 at 9:33
...
ng-app vs. data-ng-app, what is the difference?
...hink x is for XHTML, but I'm not sure. See what you can make of that after reading it all. HTML5 spec also says browser/vendor use: w3.org/html/wg/drafts/html/master/single-page.html
– redfox05
Nov 17 '15 at 14:32
...
What is the proper way to test if a parameter is empty in a batch file?
...g1!'
If you want to be 100% bullet proof to fetch the content, you could read How to receive even the strangest command line parameters?
share
|
improve this answer
|
follo...
Hidden Features of ASP.NET [closed]
...e the
compilation speed in some scenarios.
There are some catches, so read on for
more details. This switch is
currently available as a QFE for
3.5SP1, and will be part of VS 2010.
The ASP.NET compilation system takes a
very conservative approach which
causes it to wipe out any ...
How to add a progress bar to a shell script?
...; do
printf '\b%.1s' "$sp"
sp=${sp#?}${sp%???}
done
If you already have a loop which does a lot of work, you can call the
following function at the beginning of each iteration to update the
spinner:
sp="/-\|"
sc=0
spin() {
printf "\b${sp:sc++:1}"
((sc==${#sp})) && sc...
Why do we need C Unions?
...ly undefined behavior according to the C standard (you're only supposed to read the field which was most recently written), it will act in a well-defined manner in virtually any compiler.
Unions are also sometimes used to implement pseudo-polymorphism in C, by giving a structure some tag indicating...
How do I calculate the date in JavaScript three months prior to today?
...
A "one liner" (on many line for easy read)) to be put directly into a variable:
var oneMonthAgo = new Date(
new Date().getFullYear(),
new Date().getMonth() - 1,
new Date().getDate()
);
...
How often should you use git-gc?
... folder and probably brings an approximation (I don't know tcl to properly read that!).
In any case, it seems to give the warning based on an arbitrary number around 300 loose objects.
share
|
impr...