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How to determine CPU and memory consumption from inside a process?
...= now;
lastUserCPU = user;
lastSysCPU = sys;
return percent * 100;
}
Linux
On Linux the choice that seemed obvious at first was to use the POSIX APIs like getrusage() etc. I spent some time trying to get this to work, but never got meaningful values. When I finally checked the ker...
SQL - Select first 10 rows only?
...
In SQL server, use:
select top 10 ...
e.g.
select top 100 * from myTable
select top 100 colA, colB from myTable
In MySQL, use:
select ... order by num desc limit 10
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Table Naming Dilemma: Singular vs. Plural Names [closed]
...ddress
public Class Customer {...}
SELECT FROM Customer WHERE CustomerID = 100
Once you know you are dealing with "Customer", you can be sure you will use the same word for all of your database interaction needs.
Reason 5. (Globalization). The world is getting smaller, you may have a team of differ...
How do I draw a grid onto a plot in Python?
...yplot as plt
points = [
(0, 10),
(10, 20),
(20, 40),
(60, 100),
]
x = list(map(lambda x: x[0], points))
y = list(map(lambda x: x[1], points))
plt.scatter(x, y)
plt.grid(True)
plt.show()
In addition, you might want to customize the styling (e.g. solid line instead of dashed ...
How do you make a WPF slider snap only to discrete integer positions?
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<Slider Minimum="1" Maximum="500" IsSnapToTickEnabled="True" Ticks="1,100,200,350,500" />
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Using numpad in Vi (Vim) via PuTTY
...
+100
The answer is in Numpad in PuTTY while using vi [Cialug]:
In the configuration, go to Terminal->Features and check "Disable
...
内存调试技巧：C 语言最大难点揭秘 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
void f1(char *explanation)
{
char p1;
p1 = malloc(100);
(void) sprintf(p1,
"The f1 error occurred because of '%s'.",
explanation);
local_log(p1);
}
您看到问题了吗？除非 local_log()...
Colspan all columns
...
Just use this:
colspan="100%"
It works on Firefox 3.6, IE 7 and Opera 11! (and I guess on others, I couldn't try)
Warning: as mentioned in the comments below this is actually the same as colspan="100". Hence, this solution will break for tables...
How to create a new database after initally installing oracle database 11g Express Edition?
...swd=1x4y9z
set max_log_files=32
set max_log_members=4
set max_log_history=100
set max_data_files=254
set max_instances=1
set version_dir=%ora_dir%\%version%
set db_dir=%version_dir%\%db_name%
set instl_temp_dir=%db_dir%\instl\script
set system_dir=%db_dir%\system
set user_dir=%db_dir%\user
set u...
How to find current transaction level?
...
DECLARE @UserOptions TABLE(SetOption varchar(100), Value varchar(100))
DECLARE @IsolationLevel varchar(100)
INSERT @UserOptions
EXEC('DBCC USEROPTIONS WITH NO_INFOMSGS')
SELECT @IsolationLevel = Value
FROM @UserOptions
WHERE SetOption = 'isolation lev...