大约有 15,400 项符合查询结果（耗时：0.0254秒） [XML]
LEFT JOIN only first row
...
Thanks for your fast response. This was not the exact answer, but totally got me on the right way. I always tried to join both on the same level instead of making the one depended from the other. Thank you very much for leading me on the right track. Edited the first post
...
When NOT to call super() method when overriding?
When I make my own Android custom class, I extend its native class. Then when I want to override the base method, I always call super() method, just like I always do in onCreate , onStop , etc.
...
How to replace multiple white spaces with one white space
...
string cleanedString = System.Text.RegularExpressions.Regex.Replace(dirtyString,@"\s+"," ");
share
|
improve this answer
|
follow
...
Why aren't pointers initialized with NULL by default?
Can someone please explain why pointers aren't initialized to NULL ?
Example:
15 Answers
...
Apache Tomcat Not Showing in Eclipse Server Runtime Environments
...ses/helios" site or kepler - http://download.ecliplse.org/releases/kepler
Expand "Web, XML, and Java EE Development"
Check JST Server Adapters (version 3.2.2)
After that I could define new Server Runtime Environments.
EDIT: With Eclipse 3.7 Indigo Classic, Eclipse Kepler and Luna, the steps are t...
How do you set the Content-Type header for an HttpClient request?
...ttpClient client = new HttpClient();
client.BaseAddress = new Uri("http://example.com/");
client.DefaultRequestHeaders
.Accept
.Add(new MediaTypeWithQualityHeaderValue("application/json"));//ACCEPT header
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, "relativeAddr...
How can I do an asc and desc sort using underscore.js?
... 3, 1].sort(function(a, b) {
// a = current item in array
// b = next item in array
return b - a;
});
share
|
improve this answer
|
follow
|
...
What's the “average” requests per second for a production web application?
...tances. Uses Mongrel as the "web" server.
1 MySQL Server (one big 8 core box) and 1 slave. Slave is read only for statistics and reporting.
30+ processes for handling odd jobs.
8 Sun X4100s.
Process a request in 200 milliseconds in Rails.
Average time spent in the database is 50-100 milliseconds.
Ov...
How do I measure separate CPU core usage for a process?
...
You can also press I to toggle Irix mode (as opposed to Solaris mode). When on, the percentage displayed in the process list is relative to a CPU thread. When off, the said percentage is displayed relatively to the CPU overall capacity (i.e. ALL threads - aka...
How to set default values in Rails?
...tiveRecord directly calling .allocate was about model objects loaded with existing data from the database. (And it's a terrible idea for ActiveRecord to work that way, IMO. But that's beside the point.)
– SFEley
Mar 10 '11 at 7:55
...