大约有 30,000 项符合查询结果（耗时：0.0502秒） [XML]
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
... preferred whenever practical.
In this case, you typically follow the following process:
CREATE a TEMPORARY table
COPY or bulk-insert the new data into the temp table
LOCK the target table IN EXCLUSIVE MODE. This permits other transactions to SELECT, but not make any changes to the table.
Do an ...
What does O(log n) mean exactly?
...t's versatile as an example. Plus I got to use robots in my explanation! A win all-around. (Also, it looks like your answer was made before I was even a member on StackOverflow to begin with!)
– John Feminella
Feb 23 '10 at 0:40
...
Set style for TextView programmatically
...assigned, for example in res/layout create tvtemplate.xml as with the following content:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
...
How to merge two sorted arrays into a sorted array? [closed]
... if arrays are really imbalanced then versions with System.arraycopy would win because internally it can do this with single x86 assembly instruction.
Notice a[i] >= b[j] instead of a[i] > b[j]. This guarantees "stability" that is defined as when elements of a and b are equal, we want elements...
What are the advantages of Sublime Text over Notepad++ and vice-versa? [closed]
...me is that Sublime Text 2 is almost the same, and has the same features on Windows, Linux and OS X. Can you claim that about Notepad++? It makes me move from one OS to another seamlessly.
Then there is speed. Sublime Text 2, which people claim is buggy and unstable ( 3 is more stable ), is still am...
How to check type of files without extensions in python?
...
The package python-magic-win64 worked for me in Windows
– ChesuCR
Jan 25 '19 at 9:52
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invalid byte sequence for encoding “UTF8”
...hat will work on Macs in the terminal, too.) Not sure how to do that under Windows.
If you use that same utility on a file that came from Windows systems (that is, a file that's not encoded in UTF8), it will probably show something like this:
$ file yourfilename
yourfilename: ASCII text, with CRLF...
What's the best CRLF (carriage return, line feed) handling strategy with Git?
...s committed into
the repo and overrides the core.autocrlf setting,
allowing you to ensure consistent behaviour for all
users regardless of their git settings.
And thus
The advantage of this is that your end of line
configuration now travels with your repository and you
don't need to ...
Why is the use of tuples in C++ not more common?
... mind). But while tuple is handy, it's not such an overwhelming and clear win that people bother with it.
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JS: iterating over result of getElementsByClassName using Array.forEach
...y>
</html>
This works in IE 9, FF 5, Safari 5, and Chrome 12 on Win 7.
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