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SQL query to group by day
...er (from Jon Bright):
GROUP BY date(datefield)
For Oracle:
GROUP BY to_char(datefield, 'yyyy-mm-dd')
or faster (from IronGoofy):
GROUP BY trunc(created);
For Informix (by Jonathan Leffler):
GROUP BY date_column
GROUP BY EXTEND(datetime_column, YEAR TO DAY)
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Python Requests throwing SSLError
...he following options, your best option is to set the verify parameter to a string that is the path of the .pem file of the certificate (which you should obtain by some sort of secure means).
So, as of version 2.0, the verify parameter accepts the following values, with their respective semantics:
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Uses for Optional
...de to work, but it's rather clumsy. Suppose you have a method that takes a string followed by an optional second string. Accepting an Optional as the second arg would result in code like this:
foo("bar", Optional.of("baz"));
foo("bar", Optional.empty());
Even accepting null is nicer:
foo("bar", ...
Check if a path represents a file or a folder
I need a valid method to check if a String represents a path for file or a directory. What are valid directory names in Android? As it comes out, folder names can contain '.' chars, so how does system understand whether there's a file or a folder?
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How do I convert a double into a string in C++?
I need to store a double as a string. I know I can use printf if I wanted to display it, but I just want to store it in a string variable so that I can store it in a map later (as the value , not the key ).
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Java RegEx meta character (.) and ordinary dot?
... have to escape it with a backslash. Since regexes in Java are normal Java strings, you need to escape the backslash itself, so you need two backslashes e.g. \\.
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boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
...程编号
unsigned int course_hour; // 课时
std::string course_name; // 课程名
// 课程枚举
enum CourseNum_Enum
{
CourseNum_CPP = 0, // C++
CourseNum_English, // 英语
CourseNum_Ma...
How can I convert my device token (NSData) into an NSString?
I am implementing push notifications. I'd like to save my APNS Token as a String.
29 Answers
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How do I replace multiple spaces with a single space in C#?
How can I replace multiple spaces in a string with only one space in C#?
24 Answers
24...
PHP function to make slug (URL string)
I want to have a function to create slugs from Unicode strings, e.g. gen_slug('Andrés Cortez') should return andres-cortez . How should I do that?
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