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Remove an item from a dictionary when its key is unknown
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Change type of varchar field to integer: “cannot be cast automatically to type integer”
...);
CREATE TABLE
=> insert into test(x) values ('14'), (' 42 ');
INSERT 0 2
=> ALTER TABLE test ALTER COLUMN x TYPE integer;
ERROR: column "x" cannot be cast automatically to type integer
HINT: Specify a USING expression to perform the conversion.
=> ALTER TABLE test ALTER COLUMN x TYPE ...
C语言面试那些事儿──一道指针与数组问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
...tr = (int*)(&a + 1);
printf("%d,%d\n", *(a+1), *(ptr-1));
return 0;
}
这道题在很多所谓经典C语言面试题里是常见的不能再常见，你知道输出结果吗？
答案是：2,5
但是仍有许多人不能答对，也包括当初的我。这道题简简单单，但是考...
How can I run dos2unix on an entire directory? [closed]
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find . -type f -print0 | xargs -0 dos2unix
Will recursively find all files inside current directory and call for these files dos2unix command
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JavaScript for detecting browser language preference [duplicate]
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305
I think the main problem here is that the browser settings don't actually affect the navigator....
CSS overflow-x: visible; and overflow-y: hidden; causing scrollbar issue
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703
After some serious searching it seems i've found the answer to my question:
from: http://www.b...
Block Comments in a Shell Script
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answered Jun 4 '09 at 0:02
sunny256sunny256
7,98822 gold badges2222 silver badges2222 bronze badges
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C# 4.0 optional out/ref arguments
Does C# 4.0 allow optional out or ref arguments?
9 Answers
9
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Authorative way to override onMeasure()?
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edited Aug 14 '13 at 22:30
answered Apr 26 '12 at 18:52
Gr...
How can I parse a time string containing milliseconds in it with python?
...s. Not sure if this is documented anywhere. But if you're using 2.6 or 3.0, you can do this:
time.strptime('30/03/09 16:31:32.123', '%d/%m/%y %H:%M:%S.%f')
Edit: I never really work with the time module, so I didn't notice this at first, but it appears that time.struct_time doesn't actually sto...