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Building on Count number of elements with same tag

I will be running this query with BaseX 9.5.2.

Given the data

Building upon books.xml transform to CSV: repeat title on each row:

For the document below, how can I count

• the number of authors per book
• the number of unique authors per book?

In this case, they would both be the same:

I am new in AWS and need a Centralized Logging architecture with X-Ray. For this issue, I checked the AWS reference implementation: https://docs.aws.amazon.com/solutions/latest/centralized-logging/architecture.html which shows an interesting architecture.

My question is, how and where I should use X-Ray in such an architecture? My goal is to have a centralized account, which will be aware, about the underlying services, especially from other accounts.

Thanks.

I just received a helpful answer to a question about xml->tabular transformation, but I don't understand how to apply it to a document where an element may have several child nodes with the same tag.

As a minimal example, consider the books.xml file at the W3Schools web site.

I want to write code that will cast a ray from my player, and for every enemy that the ray touches I want to be able to reference that enemy, to do things such as finding the furthest enemy or calling methods inside of the enemy. Currently inside of my Player object I have the following code:

Copying a VkImage that is being used to render to an offscreen framebuffer gives a black image.

When using a rasterizer the rendered image is non-empty but as soon as I switch to ray tracing the output image is empty:

I'm trying to instantiate blocks like Minecraft with a Raycast. It works, but if I click a block with a different rotation to (0,0,0), my block spawn in the same position of the block that I clicked.

Here is a video of what I mean

My code:

In the following Python 3 code, the correct value is written into the daysSchedule but when iterating to the next value.

I'm hoping someone can help me out. I have created a table and have multiple Tabs. Each Tab has different data inside the table. Each table row has a column with a number of votes and I want to sort the rows automatically with the columns that have more votes at the top.

This is my HTML code: