大约有 48,000 项符合查询结果（耗时：0.0628秒） [XML]
How to Delete using INNER JOIN with SQL Server?
...ring. In my setup if I delete from the 2 tables separately I don't really know anymore which rows to delete from the 2nd table so this will help :)
– Verena Haunschmid
Aug 24 '16 at 5:56
...
Get protocol, domain, and port from URL
...Randomblue What about it? You will get about://. However, I am curious to know, what would be the use case for about:blank? I am not sure if any browser injects plugin resources in about:blank, but seems like that could be the only use case.
– Shef
Sep 2 '12 at...
PHP json_decode() returns NULL with valid JSON?
...
Nah, this should work. I can't do more testing right now, if I get to it later I'll post here. There are also a few hints in the user contributed notes: de.php.net/json_decode maybe something helps.
– Pekka
Mar 9 '10 at 16:09
...
How do I change Eclipse to use spaces instead of tabs?
...r > New, then choose any Profile name, ensure that Open the edit dialog now is enabled, hit OK, then under the Indentation tab, you'll see Tab Policy. Set it to Spaces Only.
– Garrett
May 4 '14 at 22:44
...
running Rails console in production
I have just gone live with my first Rails site, but now I have a problem. When I run the project in development mode on my IDE I can run the console to something like:
...
PHP - iterate on string characters
...
@jon_darkstar I don't know your application, but do take note that each entry in an array has a significant overhead (4bytes IIRC). Skip that, it is 'quite' way more: nikic.github.com/2011/12/12/…
– Daan Timmer
...
How to get the CPU Usage in C#?
...lue();
System.Threading.Thread.Sleep(1000);
// now matches task manager reading
dynamic secondValue = cpuCounter.NextValue();
return secondValue;
}
private void Timer1_Tick(Object sender, EventArgs e)
{
int cpuPercent = (int)getCPUC...
DatabaseError: current transaction is aborted, commands ignored until end of transaction block?
...s way:
try:
code_that_executes_bad_query()
# transaction on DB is now bad
except:
pass
# transaction on db is still bad
code_that_executes_working_query() # raises transaction error
There nothing wrong with the second query, but since the real error was caught, the second query is th...
C++ multiline string literal
...#include ing a file? I can't think of one, but boy, that would be nice. I know it'll be in C++0x.
10 Answers
...
No empty constructor when create a service
...
I don´t know if it is documented anywhere, but if you want to instantiate inner non static classes, the outer class must be instantiated first. Now if you start a service, the instance is created by the system, which won´t know that ...