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How to select only the records with the highest date in LINQ
...q = from n in table
group n by n.AccountId into g
select g.OrderByDescending(t=>t.Date).FirstOrDefault();
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What is the difference between require and require-dev sections in composer.json?
...oding style issues)
phpunit/phpunit (to drive the development using tests)
etc.
Deployment
Now, in development and testing environments, you would typically run
$ composer install
to install both production and development dependencies.
However, in staging and production environments, you onl...
Loop inside React JSX
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+1. I'm even using this with a ul (unordered list). <ul> {objects.map((object:string,i:number)=>{ return <li>{object}</li> })} </ul> using TypeScript
– Roberto C Navarro
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Java EE web development, where do I start and what skills do I need? [closed]
...ou'd like to pick another, e.g. WildFly, TomEE, Payara, Liberty, WebLogic, etc. Otherwise you have to use Spring instead of Java EE. It's namely not possible to install EJB in a barebones servlet container without modifying the core engine, you'd in case of Tomcat basically be reinventing TomEE. See...
Finding duplicate values in a SQL table
...s unpredictable and you need sql_mode=only_full_group_by:
GROUP BY lname ORDER BY showing wrong results;
Which is the least expensive aggregate function in the absence of ANY() (see comments in accepted answer).
Oracle isn't mainstream enough (warning: humour, I don't know about Oracle).
...
Different types of thread-safe Sets in Java
...only some of them.
Obviously you can use this only if you have some total order on your elements.
This looks like an ideal candidate for high-concurrency situations, for not-too-large sets (because of the O(log n)).
4) For the ConcurrentHashMap (and the Set derived from it): Here most basic option...
Django - limiting query results
...]: l.addHandler(logging.StreamHandler())
In [23]: User.objects.all().order_by('-id')[:10]
(0.000) SELECT "auth_user"."id", "auth_user"."username", "auth_user"."first_name", "auth_user"."last_name", "auth_user"."email", "auth_user"."password", "auth_user"."is_staff", "auth_user"."is_a...
AI2 Keep Awake
...hat are not actively used, i.e. are in the background, are restricted in order to reduce energy consumption. Processor performance adjustment: The processor is throttled to save energy. Deactivation of unnecessary functions: Functions such as Bluetooth, WLAN or GPS are deactivated when they ar...
How to install Maven 3 on Ubuntu 18.04/17.04/16.10/16.04 LTS/15.10/15.04/14.10/14.04 LTS/13.10/13.04
... it if apt-get update gives a NO_PUBKEY error after manually adding it to /etc/apt/sources.list
Open a terminal and run the following:
sudo -i
Enter your password if necessary, then paste the following into the terminal:
export GOOD_RELEASE='precise'
export BAD_RELEASE="`lsb_release -cs`"
cd /...
What is managed or unmanaged code in programming?
..., CLR, the foundation of the .net framework, IL, CLI execution environment etc etc
– BKSpurgeon
Mar 3 '16 at 1:32
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