workshops | first step on your adventure with programming in RoR | Natural Language Processing library

I have a model called userWorkshop it references both a User and a Workshop.

Workshops have a price column.

userWorkshops have an override_price column.

I would like its default value of the override_price column of the UserWorkShop to be based on the price column of the Workshop it is associated with.

I want to set this value in my ActiveRecord migration. I imagine it might look something like this:

I'm trying to execute a request at another service that I own. The guides I'm using to create the app are:

QUARKUS - Using the REST Client

QUARKUS - CDI Reference

QUARKUS - Workshop

I'm getting an error like:

I'm developing a GIS library for PHP, that delegates GIS calculations to the database.

I'm currently using the ST_GeomFromText() and ST_GeomFromWKB() functions to convert PHP objects to database objects.

I'd now like to add support for PostGIS Geographies, so I thought I'd use ST_GeographyFromText() and ST_GeographyFromWKB(), but to my surprise, the latter does not exist.

Is there any reason why ST_GeographyFromWKB() does not exist?

As far as I understand it, there is no reason why a WKB with the standard format and bounds in [-180 -90, 180 90] could not be imported as a Geography.

Did I miss something?

Doing hackerrank problem "Attending Workshops" https://www.hackerrank.com/challenges/attending-workshops/problem

I have the problem that I can't sort my vector. I tried with a lambda (in commentary) and then by overloading the operator >.

My vector never turn out to be sorted. Can you help me find what I did wrong. Here is my code:

I'm new here on the site, I'm learning databases independently, and there's a question I've been trying for a long time, and I decided to ask it here

The question has such a database:

• Person (p-id, name, title, hourly-rate, title)
• Topics (t-name, description)
• Workshops (p-id, t-name, hourly-credit)
• Employees (e-id, name, address, mobile)
• EmpTraining (e-id, p-id, t-name)

Persona - The lecturer has a unique ID, name, degree, cost per hour

Topics - the topics in which workshops are delivered. Each topic has a unique name (time management, budget management, etc.) and description.

Workshop - A workshop delivered by a specific lecturer on a specific topic. (Several lecturers can deliver a workshop on the same topic and a lecturer can deliver workshops on different topics) Each workshop is defined as the number of hours that entitle the employee to the training allowance.

Employee - The employee has a unique ID, address and telephone name.

EmpTraining - Each employee is documented in all the workshops he has taken

Example of the database I built, I want to point out that the example here is from a test I failed, the database itself I added is just an example, it does not belong to the exercise itself, but that way it is easier for me to explain, and that way easier to understand.

https://www.db-fiddle.com/f/wrDLMHhsquiFQmZT7uS3Z9/0

I need to write it in code in SQL, two things:

1. Return the names of the employees who have undergone at least the same series of workshops as the outstanding employee whose employee number is 100.

In this question I have to return the names of all the workers, who did all the workshop that a worker with number 100 did

i try to write, i dont thing that is right, because i am not sure how to select same series of workshops:

I am a beginner and I have created a 3 level Multilevel List View inside navigation view, where items and group items are there and each item open's a new activity. The image is attached below. image

The problem is that there is a group item named Tomorrowland which further has two items, but on click of Tomorrowland Winners it is opening two activities in stack. Like Tomorrowland Winners should open activity A but its opening Activity B and when on back pressed the Activity B the activity A is opened. The Activity B opens when clicked on Winners.

Home Activity Code:

I am wanting to create a dynamic route in my react app using react-router-dom. I have been reading documents over it but none of it is really making sense in my situation. I have a projects page, and then you can click on a link in the projects page and it takes you to a new page called project details. the url is different in each one.

App.js

I'm working for the first time with a project created using vue-cli. I'm using VueRouter to navigate between multiple views. The problem is that if I visit de route '/workshops', '/categories' or '/machines', it's always the 'Workshops' component that show up... Here's my router declaration:

Everything is going great, but I don't see this right and left arrors in my slide show. What should I do to fix it? I did the exactly what is in bootstrap documentation. I tried to look at on google, but couldn't find anything related to this issue. I need your help with this issue, please. (it still doesnt upload my post, so filling the blanks)