大约有 40,000 项符合查询结果（耗时：0.0245秒） [XML]
How to select date from datetime column?
... indexed column is high. These are some test results on a table with 1,176,000 rows:
using datetime LIKE '2009-10-20%' => 2931ms
using datetime >= '2009-10-20 00:00:00' AND datetime <= '2009-10-20 23:59:59' => 168ms
When doing a second call over the same query the difference is even ...
How does this CSS produce a circle?
... updated in 6 years, I suspect a lot of it will be. I do know that section 11 (overflow family of properties) now lives in its own module, css-overflow-3, but that hasn't been reflected in the ED yet. You'll see plenty of issues in the ED, but I imagine it isn't an exhaustive list: dev.w3.org/csswg/...
Asynchronous vs synchronous execution, what does it really mean? [closed]
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1175
Synchronous/Asynchronous HAS NOTHING TO DO WITH MULTI-THREADING.
Synchronous or Synchronized...
What kinds of patterns could I enforce on the code to make it easier to translate to another program
...me), this is not nice. If you attempt to convert 100K SLOC then 20% is 20,000 original lines of code that are hard to translate, understand and modify in the context of another 80,000 lines of translated program you already don't understand. That takes a huge amount of effort. At the million line...
What is the “volatile” keyword used for?
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11
It's still much more subtle than that.
– Tom Hawtin - tackline
Aug 7 '10 at 14:46
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Why 0 is true but false is 1 in the shell?
... well known)?
– Guillaume86
Dec 20 '11 at 17:46
1
Assuming there is a boolean to int conversion i...
LinearLayout not expanding inside a ScrollView
... android:fillViewport="true" android:background="#000" android:orientation="vertical" > </LinearLayout>
– Prasad
Mar 13 '15 at 10:02
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How do i find out what all symbols are exported from a shared object?
...9888 bytes
Exports table:
Name: pcre.dll
Characteristics: 00000000
TimeDateStamp: 53BBA519 Tue Jul 8 10:00:25 2014
Version: 0.00
Ordinal base: 1
# of functions: 31
# of Names: 31
Addresses of functions: 000375C8
Addresses of name ordinals: 000376C0
Addr...
What is the size limit of a post request?
...ting: max_input_vars which in my version of PHP: 5.4.16 defaults to 1000. From the manual: "How many input variables may be accepted (limit is applied to $_GET, $_POST and $_COOKIE superglobal separately)" Ref.: php.net/manual/en/info.configuration.php#ini.max-input-vars
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Using a strategy pattern and a command pattern
...bout each other!
– Kalpesh Soni
May 11 '12 at 22:14
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