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How to configure PostgreSQL to accept all incoming connections
I've got a PostgreSQL data base that I'd like to configure to accept all incoming connections regardless of the source IP address. How can this be configured in the pg_hba.conf file? I'm using postgreSQL version 8.4.
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Initialise a list to a specific length in Python [duplicate]
...dicts, do not use [{}]*10 -- that would give you a list with the same initially-empty dict ten times, not ten distinct ones. Rather, use [{} for i in range(10)] or similar constructs, to construct ten separate dicts to make up your list.
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What does `unsigned` in MySQL mean and when to use it?
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MySQL says:
All integer types can have an optional
(nonstandard) attribute UNSIGNED.
Unsigned type can be used to permit
only nonnegative numbers in a column
or when you need a larger upper
numeric range for the column. For
e...
【天气API】对接国内免费好用的天气API - App应用开发 - 清泛IT社区，为创新赋能！
...ather/weatherInfo?key=【你的_API_KEY】8&city=110000&extensions=all
复制代码
阿里云也有天气API。中国天气 weather.com.cn 虽然很权威，但是不对外提供API，网上的多数链接都失效了，不考虑。
优先选择高德。
参考：https://zhuanlan.z...
How to duplicate object properties in another object?
...r the idea of applying any rules to any situation harmful and unwise. Like all these pattern-driven development practices that are going on, so don't take it personal…
– Michael Krelin - hacker
Oct 3 '12 at 20:03
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SQL Server SELECT INTO @variable?
... In case if you aren't using the database type that the OP is using, not all support TOP 1 as Adrian mentioned. SQL Server / MS Access use TOP, MySQL uses LIMIT, and Oracle uses ROWNUM. See w3schools.com/sql/sql_top.asp for more information.
– Tyler
Jul 7 '17...
Replacement for “rename” in dplyr
...which does keep it consistent with the rest of the dplyr functions. Personally, I don't think of it as a problem--you get used to new things quickly especially when it means a significant speedup in your data processing.
– vergilcw
Feb 3 '14 at 15:47
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Is there an easy way to strike through text in an app widget?
... First it is unclear what is remoteviews , plus doesn't work for all android versions.
– akshat tailang
Nov 28 '18 at 18:26
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Android file chooser [closed]
...tent in an Intent.createChooser() like this:
private static final int FILE_SELECT_CODE = 0;
private void showFileChooser() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("*/*");
intent.addCategory(Intent.CATEGORY_OPENABLE);
try {
startActivityFor...
Streaming a video file to an html5 video player with Node.js so that the video controls continue to
...to get the size of the file without reading the whole file into memory. Finally, use fs.createReadStream to send the requested part to the client.
var fs = require("fs"),
http = require("http"),
url = require("url"),
path = require("path");
http.createServer(function (req, res) {
if ...