ndata | A deep key-value store for Node.js | Runtime Evironment library

I'm trying to store data into a database and I encountered a situation where I don't know is it feasible or not to do that.

so I have two following tables in the database

I am trying to append data.rate into the this.state.test after iterating over the value, the problem is that the data is not showing in test

I'm actually coding a Multitracker with Opencv using a CSRT tracker. (I used a online code and modified it as I need, here is the source: https://learnopencv.com/multitracker-multiple-object-tracking-using-opencv-c-python/ ) Every time a bounding box is 'updated' its coordinates are added to a list.

For every bbox (bounding box) I have to lists, one for the x and y coordinates of the top left corner of the bbox, and an other one for the x and y coordinates of the bottom right corner. (Those lists are respectively called p1 and p2.)

I have done almost everything that I want, but the p2 list of the bbox 1 don't stop copying itself or something like in the p2 list of the third bbox, and it don't depend of how much bbox exists. Note that I don't want any comments about improving it or optimizing it I don't care about it. Note too that the program is made to run with up to 6 bbox, and it's normal I don't need more but the program can run with 1, 2, or least that 6 bbox if I want.

If I'm lucky it's a stupid error, but I can't get it, so maybe that looks from other peoples on it may find it better than I can! ^^

Here is my long, unoptimized and ugly program! (And thanks if you help me!):

I am trying to write a few lines to a file. After the line are written, when I try to read those lines from file using fscanf it is going into infinite loop. fprintf is working but fscanf is going to an infinite loop.

I'm trying to send a formData post request (using axios) to my backend (springboot) but I'm not sure of the proper way to do it. My plan is to pass the data through the controller to a service that will utilize it.

Axios call -

When using the titular command with an image after using "add_run", the image is not right aligned. I was attempting to recreate something similar to this but swapping the picture and text section. Unsure if this can be achieved with the library.

The code below was modified based on my original one to fix an error thanks to @RemyLebeau. It woks great but a new issue have showed up where when I want to delete a student data using option 4 from the menu, after entering their ID, it says their data is deleted but its not. And at the end of the console the message "error reading data from file", under the Standard Error Stream (cerr), keeps showing up. And all my tries to fix it failed. error_display

I have a **void where each position point to *void that point to my struct record with 3 fields (*char, int, float). I want to load data from a csv in my struct, but when it's time to reallocate memory, because size is equal to array's capacity, I got realloc(): invalid next size. I did not get my printf("realloc fails") so I think that tmp is not null, but anyway I lost my memory pointer.

The following is a code to enter some details of students into a text file and from the main menu, the user can display them using option 2. My problem is in the section where it should display all the "Taken Courses by student". When I choose to display all data, the "mentioned section using the for loop only display the last value I enter when writing to the file. How can I make it display all my entries? The issue is under the showdata and displaydata functions.