Centry | Panic button for protection against cold boot attacks | Encryption library

i have one important question i started doing project now, and i don't really know what's the difference between centerx and centry, for now I only see that centry is using for top and bottom, and centerx using right and left, can someone explain me more about it? I'm using pygame, if you have more valuable information you can share, I will be greatful :)

I have what is just an odd issue with VB.Net and SQLite and an Update procedure
Little background first I wanted to move some data from a Derby DB to the SQLite DB in a VB.Net project
So I had two records int the Netbeans Derby DB project dated Dec-03-2019 and Dec-30-2019
To use the date setting in the VB.Net project I set my computer date and time back to Dec 3 2019
With no records in the VB.Net SQLite DB project I only copy and pasted the TextBox multi line in the Netbeans project into the VB.Net project and saved the data the save worked as it should
Closed all open projects and move on to setting the date and time to Dec 30 2019 and repeted the above process great I now have two legacy Records
With all projects closed I set the computer back to today's date and time

Here is where it gets beyond my comprehension
If I try to update the first record for Dec 3 2019 the update code works
If I try to update the second record for Dec 30 2019 the update FAILS
To be clear if I enter two records for September 2020 and try to update either one the Update code works even with different dates

Why is the second LEGACY record not updating?
You will notice a Global Variable gv_childInt the little MesBox confirms the correct value is being used
UPDATE CODE BELOW with commented out changes I have tried I even did WHERE CID = " & gv_childInt

I'm using .net core Razor pages, and I'm trying to write a class / function to look up CMS data from database. I can get it work if I put the class into the model.cs of each page, but I really want to just call it from a central class file.

The code that I have that works is:

Basically what i want to do is if you press the Button then entries should get a new CEntry. It would be nice if someone could help me out. Thanks!

I have my button and function in GUI as shown below. RUN function calculates X and Y coordinates along with color values and then plots them using matplotlib. Since the calculations and plotting takes time, Tkinter freezes until it's completed. I've seen people using threading but I couldn't really adapt it to my own code. How can I stop Tkinter from freezing?

I am creating an app as my homework that takes in customer information and register it using derby database and javafx. Once registered, the new customer will appear on a tableview. I've been trying to add rows to tableview but java.lang.reflect.InvocationTargetException keeps popping up and I have no idea what is going on. I want to retrieve data from my derby database and show it in a tableview in my app. When you open the app, there is an option to add new customer. When clicked on the option to add new customer, a new window will pop up that asks for the new customer's information. I have made a separate FXML file for the new customer entry window and a separate controller for it (neither are shown here). After entering all of the required information on the customer entry window, you click on the submit button and the entered information will be inserted into the derby database, then the NewCustomerEntryController class will call the "handleNewSubmit" method in the "RetailSystemController" class (shown below). Please see my code below and the exception that pops up.

This is the main class that overrides the start method of javafx and I have set up my driver and URL connection for derby in this class