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Concatenate multiple result rows of one column into one, group by another column [duplicate]

...ase. string_agg() expects data type text as input. Other types need to be cast explicitly (actor::text) - unless an implicit cast to text is defined - which is the case for all other character types (varchar, character, "char"), and some other types. As isapir commented, you can add an ORDER BY c...
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Get operating system info

...ing system info. I have not been able to find out how to do that with PHP, and wanted to try to figure it out. 7 Answers ...
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RESTful Authentication via Spring

...(user/pass combo) with each request is not desirable. Per REST guidelines (and internal business requirements), the server must remain stateless. The API will be consumed by another server in a mashup-style approach. ...
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Find a file in python

... to implement a search for the file? A way that I can pass the file's name and the directory tree to search in? 9 Answers ...
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How do I get the full path of the current file's directory?

...nt working directory: import pathlib pathlib.Path().absolute() Python 2 and 3 For the directory of the script being run: import os os.path.dirname(os.path.abspath(__file__)) If you mean the current working directory: import os os.path.abspath(os.getcwd()) Note that before and after file is...
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What is the difference between os.path.basename() and os.path.dirname()?

What is the difference between os.path.basename() and os.path.dirname() ? 2 Answers ...
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Check whether a path is valid in Python without creating a file at the path's target

I have a path (including directory and file name). I need to test if the file-name is a valid, e.g. if the file-system will allow me to create a file with such a name. The file-name has some unicode characters in it. ...
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How to detect reliably Mac OS X, iOS, Linux, Windows in C preprocessor? [duplicate]

...ed(__WIN32__) || defined(__NT__) //define something for Windows (32-bit and 64-bit, this part is common) #ifdef _WIN64 //define something for Windows (64-bit only) #else //define something for Windows (32-bit only) #endif #elif __APPLE__ #include <TargetConditionals.h&...
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How can I check file size in Python?

... by the block size, but I'm still searching how to get it programmatically and cross-platform (not via tune2fs etc.) – Tomasz Gandor Apr 22 '16 at 20:56 add a comment ...
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Extract a part of the filepath (a directory) in Python

...ath.dirname(os.path.dirname(file)) ## directory of directory of file ... And you can continue doing this as many times as necessary... Edit: from os.path, you can use either os.path.split or os.path.basename: dir = os.path.dirname(os.path.dirname(file)) ## dir of dir of file ## once you're at th...