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Optimal way to concatenate/aggregate strings
...e SQL Database:
STRING_AGG() in PostgreSQL, SQL Server 2017 and Azure SQL
https://www.postgresql.org/docs/current/static/functions-aggregate.html
https://docs.microsoft.com/en-us/sql/t-sql/functions/string-agg-transact-sql
GROUP_CONCAT() in MySQL
http://dev.mysql.com/doc/refman/5.7/en/group-by-f...
Scroll to the top of the page using JavaScript?
... to "smooth"
window.scrollTo({ top: 0, behavior: 'smooth' });
Reference: https://developer.mozilla.org/en-US/docs/Web/API/Window/scrollTo#Example
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Cannot create or edit Android Virtual Devices (AVD) from Eclipse, ADT 22.6
...roblems. Also tested under Debian and same results obtained.
Update 5
At https://code.google.com/p/android/issues/detail?id=66661 android project members conforms the problems and promises to fix by upcoming versions of ADT (22.6.1 - 22.6.3). At the mean time I would suggest to roll-back ADT to a ...
Is UML practical? [closed]
...it's started to rain - then you need to look at your feet to avoid falling down. There are times when the task you've taken on is more complicated than your intuition can handle, and you need to slow down and state the structure of your program explicitly. Then UML is one of many tools you can use. ...
how to check redis instance version?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to add text at the end of each line in Vim?
...
I have <M-DOWN>(alt down arrow) mapped to <DOWN>. so that I can repeat the last command on a series of lines very quickly. with this mapping I can:
A,<ESC>
And then hold alt while pressing down repeatedly to append th...
How to get the filename without the extension in Java?
...
Below is reference from https://android.googlesource.com/platform/tools/tradefederation/+/master/src/com/android/tradefed/util/FileUtil.java
/**
* Gets the base name, without extension, of given file name.
* <p/>
* e.g. getBaseName("file.t...
Apache Tomcat Not Showing in Eclipse Server Runtime Environments
...teps I followed:
Help -> Install New Software
Choose "Helios - http://download.eclipse.org/releases/helios" site or kepler - http://download.ecliplse.org/releases/kepler
Expand "Web, XML, and Java EE Development"
Check JST Server Adapters (version 3.2.2)
After that I could define new Server R...
What's the “average” requests per second for a production web application?
...ill need to test with live DB. DB may be our bottleneck and bring us back down unless we switch to nosql).
– Dean Hiller
Jun 6 at 0:28
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How to load json into my angular.js ng-model?
...ller.
I've put some examples here
http://plnkr.co/edit/Wuc6M7?p=preview
https://gist.github.com/3938567
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