SQL returns less results when using UNION?

I have a SQL Server stored procedure that doesn't give me all the results when I add in the union and the second half. The first half will give me all 6 results, using the union, I only get...

Possible memory leaks using Web Workers (Garbage Collector)

I have an app which calls web worker after the button click. The calculations are moved to worker to relieve UI and make it responsive to user actions while calculations are being made. Everything...

LESS compiler for PHP

I'm trying to compile LESS from PHP and don't want to use node.js or ruby. There's this PHP implementation I found through Google but it seams really outdated and lacks support for newer...

Using BlockingCollection<T>: OperationCanceledException, is there a better way?

I'm making use of the (frankly great) BlockingCollection<T> type for a heavily multithreaded, high-performance app. There's a lot of throughput through the collection and on the micro-level it's...

Why does gcc generate verbose assembly code?

I have a question about assembly code generated by GCC (-S option). Since, I am new to assembly language and know very little about it, the question will be very primitive. Still, I hope somebody...

If else statement in R

So I am trying to create an if statement where if the number of columns is greater than 1 then it will do several forms of manipulation to that matrix, and if the matrix has less then or equal 1...

How to alias a table in Laravel Eloquent queries (or using Query Builder)?

Lets say we are using Laravel's query builder: $users = DB::table('really_long_table_name') ->select('really_long_table_name.id') ->get(); I'm looking for an equivalent to...

LOAD_FILE returns NULL

I am trying to insert an image into my MySQL server. I have done some research and it looks like the best way to do that is through LOAD_FILE(). However, LOAD_FILE() always returns null. I know...

What is the difference between A.length and A.heap-size?

I have a question about heap sort. It state in an Algorithms book that A.heap-size<= A.length I don’t understand the difference between the two. If an array represents a heap, why is there a...

How to show Bootstrap 3 popover scroll only when needed

I have this popover, with a scroll bar HTML <ul class="navbar-nav pull-right"> <li><a href="#" data-toggle="popover" title="Notifications" data-html="true" data-content="<a href='?Profile'><div...

Adding highscores to java game - From console to JPanel - Saving highscore in encrypted text file

I am new to Java, and learning new things everyday. English is not my mother language, I'm sorry. So, I'm making a maze game in Java to learn while writing code. For my maze game, the player needs...

Detect duplicate videos from YouTube

In consideration to my M.tech Project I want to know if there is any algorithm to detect duplicate videos from youtube. For example (here are links of two videos): random user upload upload by...

User suddenly getting "XPath Evaluator is Undefined" error

This is an issue coming from a user of a system I support. The system is a web-based enterprise application. I should note that I am not the developer for it. The reason why I am not asking their...

Debug and HeapAlloc

On trying to deal with heaps in WinApi I've got some strange results for HeapAlloc's actions. Lets consider the following code. The problem is that according to Microsoft Documentation on Windows...

How Kotlin coroutines are better than RxKotlin?

Why would I want to use Kotlin's coroutines? It seems that the RxKotlin library is much more versatile. Kotlin's coroutines look significantly less powerful and more cumbersome to use in...

Is it possible to import *.vue files in a folder?

I hate repeating things in code. For now I am importing vue files like this in my main.js. import Default from '../../src/components/default.vue'; import Home from...

Looking for a fast prime-counting function

I need to calculate the number of primes less than or equal to some N, which is the prime-counting function or the PI function. I have this one but it works too slowly: function PI(x) { var...

One Sided One Sample T Test Python

In Python I'm using SciPy for a one sample t test: from scipy import stats one_sample_data = [177.3, 182.7, 169.6, 176.3, 180.3, 179.4, 178.5, 177.2, 181.8, 176.5] one_sample =...

Not-reproducible results using IPOPT in C#

I am currently trying to implement an optimization problem in C# using IPOPT and csipopt. I observed that running the same problem with the same data over and over in the same process leads to...

How to use spacy in large dataset with short sentences efficiently?

I choose spacy to process kinds of text because of the performance of it's lemmatation compared with nltk. But When I process millions short text, it always consumed all of my memory(32G) and...

How to Trap Android Location Permission Revoked after Location Service Started?

I have developed a Android hybrid app that amongst other activities tracks the users location and displays it to the user showing where they have been recently. This works by invoking...

Delete large number of rows (e.g. ~500k rows) based on a certain criteria

I have a large number of rows and columns (e.g. 500k rows and 20 columns) all filled with numbers. I'm trying to delete all data in column I that has a certain value (e.g. less than or equal to...

Kotlin groupBy with range

Any method to use groupBy extension function of kotlin with custom range on the selected key e.g group all similar items with age less then 2 years apart from each other using list.groupBy{...

Random number generation following a Poisson distribution

I have prepared a code in Python to do random sampling of beam structure and looking for photons. The evolution of photons with time follows a Poisson distribution. The beam structure I am...

Webpack does not resolve less loader

I'm getting crazy about the configuration of my React-Typescript-Webpack application. It is built from scratch - no create-react-app - and should work with the UI library "antd" and "storybook" as...

Spring Boot: Tomcat redirects to HTTPS 8443, no matter which HTTPS port I specify

I use a fairly standard method of redirecting Spring Boot's embedded Tomcat from HTTP to HTTPS, which repeates in a number of tutorials. The method works perfectly for the ports HTTP 8080 and...

Zabbix on docker-compose don't start zabbix-agent

I have used docker-compose based zabbix version 4.x in the past. When I started the environment I could count more than 5 containers, including zabbix-agent. I am now trying to start versions 5.0,...

How to Use React Suite with tailwind css in Next.js?

Description I want to use React Suite and tailwind so I install tailwind following the installation instructions from the documentation and it's working fine, but when I install React Suite and...

Inverting an Order-Preserving Minimal Perfect Hash Function in Better than O(K*lg N) Running Time

I am trying to find a more efficient solution to a combinatorics problem than the solution I have already found. Suppose I have a set of N objects (indexed 0..N-1) and wish to consider each subset...

Fastest way to write numpy array in arrow format

I'm looking for fast ways to store and retrieve numpy array using pyarrow. I'm pretty satisfied with retrieval. It takes less than 1 second to extract columns from my .arrow file that contains...