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Which timestamp type should I choose in a PostgreSQL database?
... (
my_timestamp TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
CHECK(EXTRACT(TIMEZONE FROM my_timestamp) = '0')
);
test=> SET timezone = 'America/Los_Angeles';
SET
test=> INSERT INTO my_tbl (my_timestamp) VALUES (NOW());
ERROR: new row for relation "my_tbl" violates check constraint "my...
Declaration/definition of variables locations in ObjectiveC?
...In ObjC, they should only be used to declare constants, and generally only string constants. For instance:
extern NSString * const MYSomethingHappenedNotification;
You would then in your .m file declare the actual constant:
NSString * const MYSomethingHappenedNotification = @"MYSomethingHappened...
What does Visual Studio mean by normalize inconsistent line endings?
...iewing a file originating from a Windows computer on a
Unix system, the extra CR may be displayed as ^M or at the end of each line or as a
second line break.
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SqlAlchemy - Filtering by Relationship Attribute
...u: I recently made package that gives you filtering/sorting with "magical" strings as in Django, so you can now write something like
Patient.where(mother___phenoscore=10)
It's a lot shorter, especially for complex filters, say,
Comment.where(post___public=True, post___user___name__like='Bi%')
...
MFC的多国语言界面的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...不同语言版本中按钮的点击次数的统计。
（1） 在String Table中分别添加中英文的IDS_STRING_SAMPLE资源，内容如下表所示。
中文
这个一个中文提示信息。\n点击次数：%d。
英文
This is a prompt message in English.\nClick Ti...
How to initialize an array in Java?
...
+1. You have an extra opening brace. One can also write: data[0] = 10; data[1] = 20; .... after int data[] = new int[10], but it is too much code and it will end up doing the same thing.
– Hamish Grubijan
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How to get the return value from a thread in python?
The function foo below returns a string 'foo' . How can I get the value 'foo' which is returned from the thread's target?
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DateTime vs DateTimeOffset
... value with Kind=Local using Json.Net and an ISO date format, you'll get a string like 2015-08-05T07:00:00-04. Notice that last part (-04) had nothing to do with your DateTime or any offset you used to calculate it... it's just purely the server's time zone offset.
Meanwhile, DateTimeOffset explic...
use localStorage across subdomains
...n localStorage on load, grab it from the cookie.
Pros:
Doesn't need the extra iframe and postMessage set up.
Cons:
Will make the data available across all subdomains (not just www) so if you don't trust all the subdomains it may not work for you.
Will send the data to the server on each requ...
Count number of occurrences of a pattern in a file (even on same line)
When searching for number of occurrences of a string in a file, I generally use:
5 Answers
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