大约有 41,000 项符合查询结果(耗时:0.0180秒) [XML]

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How do you create a random string that's suitable for a session ID in PostgreSQL?

...sion verification using PostgreSQL. I know I can get a random number with SELECT random() , so I tried SELECT md5(random()) , but that doesn't work. How can I do this? ...
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How to get IP address of the device from code?

Is it possible to get the IP address of the device using some code? 27 Answers 27 ...
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How to get the primary IP address of the local machine on Linux and OS X? [closed]

...oking for a command line solution that would return me the primary (first) IP address of the localhost, other than 127.0.0.1 ...
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Bash Templating: How to build configuration files from templates with Bash?

...omprehensive solution: These otherwise handy solutions do not allow you to selectively protect variable references from expansion (such as by \ -escaping them). – mklement0 Mar 25 '15 at 21:48 ...
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What's the difference between VARCHAR and CHAR?

...CHAR(10), Street VARCHAR(10)); Insert into temp values('Pune','Oxford'); select length(city), length(street) from temp; Output will be length(City) Length(street) 10 6 Conclusion: To use storage space efficiently must use VARCHAR Instead CHAR if variable length is ...
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How can I check if an ip is in a network in Python?

Given an ip address (say 192.168.0.1), how do I check if it's in a network (say 192.168.0.0/24) in Python? 27 Answers ...
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How to convert int to char with leading zeros?

... Try this: select right('00000' + cast(Your_Field as varchar(5)), 5) It will get the result in 5 digits, ex: 00001,...., 01234 share | ...
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Get IP address of visitors using Flask for Python

... from flask import request from flask import jsonify @app.route("/get_my_ip", methods=["GET"]) def get_my_ip(): return jsonify({'ip': request.remote_addr}), 200 For more information see the Werkzeug documentation. sh...
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Deny all, allow only one IP through htaccess

I'm trying to deny all and allow only for a single IP. But, I would like to have the following htaccess working for that single IP. I'm not finding a way to have both working: the deny all and allow only one, plus the following options: ...
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Getting the location from an IP address [duplicate]

...ieve information like the city, state, and country of a visitor from their IP address, so that I can customize my web page according to their location. Is there a good and reliable way to do this in PHP? I am using JavaScript for client-side scripting, PHP for server-side scripting, and MySQL for th...