大约有 21,000 项符合查询结果（耗时：0.0325秒） [XML]
How do I find duplicates across multiple columns?
...like this will do the trick. Don't know about performance, so do make some tests.
select
id, name, city
from
[stuff] s
where
1 < (select count(*) from [stuff] i where i.city = s.city and i.name = s.name)
share
...
How do I include a pipe | in my linux find -exec command?
...ust operating on the files returned by find, especially when combined with test. For instance: find geda-gaf/ -type d -exec bash -c 'DIR={}; [[ $(find $DIR -maxdepth 1 |xargs grep -i spice |wc -l) -ge 5 ]] && echo $DIR' \; Will return all directories in the search path which contain more...
Repeat a task with a time delay?
...
@Override
public void run() {
try {
updateStatus(); //this function can change value of mInterval.
} finally {
// 100% guarantee that this always happens, even if
// your update method throws an exception
mHand...
Convert to/from DateTime and Time in Ruby
...ating :-). Timezone info is not kept when using Time.parse(). It's easy to test. In your code above, simply replace d = DateTime.now with d = DateTime.new(2010,01,01, 10,00,00, Rational(-2, 24)). tt will now show the date d converted into your local timezone. You can still do date arithmetic...
Safest way to convert float to integer in python?
...
@jochen I tested int(-2.3) in Python distribution Canopy 2.7.6 and got -2 as expected. Integer numbers can be negative, the same way in formal Math definition.
– srodriguex
Jul 20 '14 at 16:26
...
YAML Multi-Line Arrays
... [
String1, String2, String3,
String4, String5, String5, String7
]
I tested it using the snakeyaml implementation, I am not sure about other implementations though.
share
|
improve this answer...
DirectX SDK (June 2010) Installation Problems: Error Code S1023
...y run Windows Update and it will update the redistributables back to the latest version.
share
|
improve this answer
|
follow
|
...
Ignoring accented letters in string comparison
...*/
therefor for accented languages you will need to get the culture then test the strings based on that.
http://msdn.microsoft.com/en-us/library/hyxc48dt.aspx
share
|
improve this answer
...
How to throw an exception in C?
.... for example GetLastError() in windows API.
– BattleTested
Oct 2 '19 at 13:27
add a comment
|
...
How to get pixel data from a UIImage (Cocoa Touch) or CGImage (Core Graphics)?
...
USE CALLOC INSTEAD OF MALLOC!!!! I was using this code to test if certain pixels were transparent and I was getting back bogus information where pixels were meant to be transparent because the memory wasn't cleared first. Using calloc(width*height, 4) instead of malloc did the trick...