大约有 31,000 项符合查询结果（耗时：0.0815秒） [XML]
How to avoid the “divide by zero” error in SQL?
...
This seemed to be the best fix for my situation when trying to address dividing by zero, which does happen in my data.
Suppose you want to calculate the male–female ratios for various school clubs, but you discover that the following query fails and issues ...
typedef struct vs struct definitions [duplicate]
... creates a new name for an existing type. For example, given:
typedef int my_int;
my_int is a new name for int; my_int and int are exactly the same type. Similarly, given the struct definition above, you can write:
typedef struct foo foo;
The type already has a name, struct foo. The typedef d...
What are the differences between WCF and ASMX web services?
...d between WCF and ASMX web services. I have used a lot of web services in my earlier stage, and now there is this new thing introduced called WCF. I can still create WCF that function as a web service. I think there will be more stuff in WCF.
...
Understanding FFT output
... are negative while the magnitude of the frequency itself is positive (see my answer to question 1). I suggest that you read up on complex numbers. Explaining how they work (and why they are useful) exceeds what is possible to explain in a single stackoverflow-question.
Note: You may also want to ...
Create a new cmd.exe window from within another cmd.exe prompt
...blem I am having is that I am running CC as a console application and when my build completes successfully and executes (using exec) it launches it within the CruiseControl DOS prompt. I am just using simple batch files to launch my app but having it run within the same prompt as CC is causing CC to...
Adding System.Web.Script reference in class library
I am currently moving code from my app_code folder to a class library. I have tagged several methods with [System.Web.Script.Serialization.ScriptIgnore] attributes. My class library cannot see this namespace. My add references dialog cannot see this namespace. How do I properly use this tag fr...
Git: cannot checkout branch - error: pathspec '…' did not match any file(s) known to git
...l "master" somehow, so although "git fetch" got me closer, I had to delete my local master first ("git branch -d master"), before switching to the remote master ("git checkout master"). In case that helps anyone else who is as silly as me!
– Jamie Brown
Oct 23...
How to find the largest file in a directory and its subdirectories?
...ursively if they're normal files, sorts by the 7th field (which is size in my find output; check yours), and shows just the first file.
find . -type f -ls | sort +7 | head -1
The first option to find is the start path for the recursive search. A -type of f searches for normal files. Note that i...
Backing beans (@ManagedBean) or CDI Beans (@Named)?
...orked just fine. I'm happy to answer any specific questions to the best of my memory if you've got them.
– Matt Ball
May 6 '13 at 13:33
add a comment
|
...
Rails Root directory path?
How do I get my Rails app's root directory path?
9 Answers
9
...