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How do I automatically update a timestamp in PostgreSQL
...ULT value:
CREATE TABLE users (
id serial not null,
firstname varchar(100),
middlename varchar(100),
lastname varchar(100),
email varchar(200),
timestamp timestamp default current_timestamp
)
Note that the value for that column can explicitly be overwritten by supplying a value in the...
Real mouse position in canvas [duplicate]
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The Simple 1:1 Scenario
For situations where the canvas element is 1:1 compared to the bitmap size, you can get the mouse positions by using this snippet:
function getMousePos(canvas, evt) {
var rect = canvas.getBoundingClientRect...
Is pass-by-value a reasonable default in C++11?
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138
It's a reasonable default if you need to make a copy inside the body. This is what Dave Abraha...
The written versions of the logical operators
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112
They originated in C in the header <iso646.h>. At the time there were keyboards that cou...
Execute AsyncTask several times
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217
AsyncTask instances can only be used one time.
Instead, just call your task like new MyAsyncTas...
What is Python buffer type for?
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146
An example usage:
>>> s = 'Hello world'
>>> t = buffer(s, 6, 5)
>>>...
How to determine if Javascript array contains an object with an attribute that equals a given value?
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2018 edit: This answer is from 2011, before browsers had widely supported array filtering methods and arrow functions. Have a look at CAFxX's answer.
There is no "magic" way to check for something in an array without a loop. E...
Get login username in java
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edited Jul 3 '12 at 17:35
Tim Cooper
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Windows远程桌面授权错误（授权超时）等报错信息疑难解答 - 更多技术 - 清...
...临时许可证还有多少天即将过期。与此类似，“事件 ID 1011，源 TermService”也将显示在终端服务器上的应用程序事件日志中。
解决方案： 将终端服务器授权模式从“每设备”更改为“每用户”。
要点
终端服务器不监视每用...
Avoid line break between html elements
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146
There are several ways to prevent line breaks in content. Using &nbsp; is one way, and wor...