大约有 40,000 项符合查询结果（耗时：0.0561秒） [XML]
How do you check if a certain index exists in a table?
...nd newer, a more concise method, coding-wise, to detect index existence is by using the INDEXPROPERTY built-in function:
INDEXPROPERTY ( object_ID , index_or_statistics_name , property )
The simplest usage is with the IndexID property:
If IndexProperty(Object_Id('MyTable'), 'MyIndex', 'IndexID...
Illegal mix of collations MySQL Error
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@Ben: It was initially developed by a Swedish company... That is the reason behind the annoying latin1_swedish_ci initial setting.. :(
– Vajk Hermecz
Sep 29 '14 at 7:45
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How do I trim whitespace?
...line=line.strip()
process(line)
#we could also be reading a file line by line.. e.g. my_file=open(filename), or with open(filename) as myfile:
for line in my_file:
line=line.strip()
process(line)
#moot point: note splitlines() removed the newline characters, we can keep them by passing...
What's the equivalent of Java's Thread.sleep() in JavaScript? [duplicate]
...n after "500" and initialise "millisecondsToWait" in the code sample (e.g. by preceding it with "var ") (this way, if someone copies and pastes the sample, they won't end up with an implied global).
– Steve Harrison
Sep 20 '09 at 5:58
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Collections.emptyList() vs. new instance
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API clients won't get NullPointerException by returning Collections.emptyList() instead of null.
– realPK
Jul 11 '16 at 2:54
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How do I get Fiddler to stop ignoring traffic to localhost?
... targeted at Localhost, but rather that most applications are hardcoded to bypass proxies (of which Fiddler is one) for requests targeted to localhost.
Hence, the various workarounds available: http://fiddler2.com/documentation/Configure-Fiddler/Tasks/MonitorLocalTraffic
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Convert Enum to String
...gt; "EnumValue"
This works at compile time, with the enum being replaced by the string in the compiled result, which in turn means this is the fastest way possible.
Any use of enum names does interfere with code obfuscation, if you consider obfuscation of enum names to be worthwhile or important ...
How do I know that the UICollectionView has been loaded completely?
...block gets called, which has our reloadData method being invoked, followed by anything else in the second block.
Now the main thread is blocking as well. So if you're reloadData takes 3s to execute, the processing of the second block will be deferred by those 3s.
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Autocompletion in Vim
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@dieguitoweb ACP doesn't work with every filetypes by default. You have to "hack" it to make it work with JavaScript, ActionScript and PHP. Here I explain how I do it. And here is another hint for PHP.
– romainl
Mar 2 '11 at 20:07
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How to take a screenshot programmatically on iOS
...th = 320 * 480 * 4;
// allocate array and read pixels into it.
GLubyte *buffer = (GLubyte *) malloc(myDataLength);
glReadPixels(0, 0, 320, 480, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
// gl renders "upside down" so swap top to bottom into new array.
// there's gotta be a better way...