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I am encountering an issue with Neo4j where the results for the same query change after applying the below:

• an index on a property for nodes with a given label
• a constraint that asserts the existence of the same property for nodes with the same label as above

• Neo4j version: 4.2.1 Enterprise, default runtime (slotted)
• Neo4j Desktop 1.4.1
• Operating system: macOS Big Sur Version 11.4

Create one set of nodes and relationships by running the following:

In a Laravel project I have an array with arrays like this:

I am working with the current tidytuesday data about salaries and trying to create a model with tidymodels and recipes. I want to predict salary with many of the other factors present using the recipes code, but I run into an issue.

Issue 1 - My recipe says there are empty rows, but I do not know how to figure out how. This does not give an error, so maybe it is not a problem.

Issue 2 - Understanding what my models actually did and how to visualize the performance. I want to plot the models performance on the initial data. Here is an example of my goal: https://indescribled.files.wordpress.com/2021/05/image-17.png?w=782

I do not understand exactly how to use the predict function with my recipe. juice(rec) is less than 1000 rows while the testing data is about 6000. Perhaps I am reading it backwards, but can someone try to point me in the right direction?

The code below should be an exact reproduction of mine.

I have combined 3 JSON files into a single array using flat(), and then looped through the array to output its contents in the console. It outputs an array of arrays created from the 3 JSON files below.

Here's the console output:

I wrote a code where I replaced all the whitespaces with new lines from a .txt file which is basically a novel. Doing this, seperated the words in new lines for me, but there are some empty lines and I want to remove those. So I am trying to remove all the whitespaces except the new lines. How might I do that using regex?

First I did this to replace whitespaces with new lines:

I wanted to get the adjacent record as a column on the select query of the Postgresql

here is my schema.

I have two table :

Table 1

and Table 2

Now, I want to write a trigger that after deleting from Table 1 and Number of books = 0 , delete that row from table 2 and if Number of books not null update the value of the Number of books.

for Example :

1.delete from Table 1 where Bookname=poem

and

2.delete from Table 1 where Bookname=Math

Then Table 2 would be change like This

I'm pretty new working on python and this is my first "big" project. This is what I have worked on for the day. I am trying to work on this project that randomly generates a name when you click on a category and press the generate button. It randomly generates one name but when I press the generate button again it doesn't display another name. That's what I'm trying to figure out. Also if anyone doesn't mind, how can I check a box and generate a name on that category.

Thank you very much

I am trying to write data from csv file to MySQL database with python. I created a table in MySQL with the query: