大约有 41,400 项符合查询结果(耗时:0.0623秒) [XML]
CharSequence VS String in Java?
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Strings are CharSequences, so you can just use Strings and not worry. Android is merely trying...
Remove leading or trailing spaces in an entire column of data
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133
If you would like to use a formula, the TRIM function will do exactly what you're looking for:
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How does “304 Not Modified” work exactly?
...he If-Modified-Since or If-None-Match header, telling the server to send a 304 if the content still has that date or ETag.
The server needs some way of calculating a date-modified or ETag for each version of each resource; this typically comes from the filesystem or a separate database column.
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Unix shell script find out which directory the script file resides?
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edited Feb 28 '16 at 3:37
James Ko
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answ...
Is there a pattern for initializing objects created via a DI container
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Mark SeemannMark Seemann
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NUnit vs. MbUnit vs. MSTest vs. xUnit.net [closed]
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I know this is an old thread, but I thought I'd post a vote for xUnit.NET. While most of the oth...
What is the difference between JOIN and UNION?
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UNION puts lines from queries after each other, while JOIN makes a cartesian product and subse...
How to initialize a dict with keys from a list and empty value in Python?
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dict.fromkeys([1, 2, 3, 4])
This is actually a classmethod, so it works for dict-subclasses (like collections.defaultdict) as well. The optional second argument specifies the value to use for the keys (defaults to None.)
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Get first n characters of a string
...ngths on trimmed and untrimmed strings):
$string = (strlen($string) > 13) ? substr($string,0,10).'...' : $string;
So you will get a string of max 13 characters; either 13 (or less) normal characters or 10 characters followed by '...'
Update 2:
Or as function:
function truncate($string, $len...
setting multiple column using one update
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Just add parameters, split by comma:
UPDATE tablename SET column1 = "value1", column2 = "val...
