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Which timestamp type should I choose in a PostgreSQL database?
... 0
(1 row)
The bottom line:
store a user’s time zone as a named label (e.g. America/Los_Angeles) and not an offset from UTC (e.g. -0700)
use UTC for everything unless there is a compelling reason to store a non-zero offset
treat all non-zero UTC times as an input error
never mix and match...
Can I set enum start value in Java?
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Java enums are not like C or C++ enums, which are really just labels for integers.
Java enums are implemented more like classes - and they can even have multiple attributes.
public enum Ids {
OPEN(100), CLOSE(200);
private final int id;
Ids(int id) { this.id = id; }
p...
Sending Arguments To Background Worker?
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@rayray: label1.Text = e.Result.ToString(); , everywhere I marked that as safe.
– Henk Holterman
May 16 '19 at 4:57
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ERROR:'keytool' is not recognized as an internal or external command, operable program or batch file
... the error is The filename, directory name, or volume label syntax is incorrect.
– Shalini
Jun 2 '11 at 9:15
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Pure JavaScript Graphviz equivalent [closed]
...s is great and very easy, not that it currently does not support html-like labels: graphviz.org/doc/info/shapes.html#html
– SirLenz0rlot
Feb 8 '13 at 10:15
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Restoring state of TextView after screen rotation?
... android:configChanges="orientation|keyboardHidden"
android:label="@string/app_name">
</activity>
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How can I check the system version of Android?
... the same thing Menu >> Settings >> About Phone. It should be labeled Firmware Version or something to that affect.
– Falcon165o
Mar 7 '12 at 17:21
59
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Save image from URL by paperclip
...low other to upload an Image from a URL
<%= f.input :image_remote_url, label: "Enter a URL" %>
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How to require a fork with composer
...reate a branch and make the required modifications.
3- Add the repository label to your composer.json
"repositories": [
{
"type": "vcs",
"url": "https://github.com/user/yourforkname"
}
]
4- In the command line inside your project require your fork lik...
开源MQTT网关：EMQX vs Mosquitto - 创客硬件开发 - 清泛IT社区，为创新赋能！
...物联网等各类关键业务场景。EMQX 采用 Erlang/OTP 编写，这是一种用于构建大规模可扩展软实时系统的编程语言。与 Mosquitto 不同，EMQX 在设计之初即采用了分布式集群架构，可以轻松实现弹性水平扩展，从而稳定承载大规模的 MQTT ...