Hello every one i'm new to MySQL database design
My question is this database is correctly build or not
We used users table to login and get account type
and here the code to login
$result = mysqli_query($db->_connect()," SELECT * FROM users WHERE nam = $_n AND pas = $_p ");
if (!empty($re...
I am looking to optimize the nested for-loops shown in the code below.
I have a list, mixtures, that contains points that represent 1 Gaussian Mixture (GM) on each line. My goal is to run a function kl_divergence between all combinations of GM's (with i≠j) and store the results in an array PxP....
This is one of my main .htaccess files and I'm wondering if anyone can review it and tell me if I have the syntax correct, I'm still not 100% sure what should and shouldn't be inside a module, I know that they can be nested but this is about as far as my knowledge goes. This is in the main root d...
Suppose originally a Person class supporting a single CreditCard for purchases a user can do.
public class Person {
private CreditCard creditCard;
public boolean hasCreditCard() {
return creditCard != null && creditCard.isValid();
}
}
Now, a Person can have multiple credit c...
I am making a small console app to get XML from an API and then save the data to a database. While this project was not created via test-driven-development, I have tried to make it such that tests can be written easily and properly. Additionally, the core portions of the application are in a sepa...
// this program is for a binary search i need help specifically for building a header file
//ive been struggling with this program for a few days.
// any suggestion? thank you
#include<iostream>
#include<fstream>
#include"BinarySearch.h"
using namespace std;
int recursiveBinarySearch ((int...
I am currently working on building a calculator using Java and JavaFX to practice my coding skills. I wrote the following methods to evaluate a given expression.
What can I improve? Is there anything you would recommend me to change?
public String evaluate(String expression) {
char[] token...
My path to learning c++ has been a rough one. Currently, I'm writing a project and my knowledge is very outdated. While I can write code that accomplishes the tasks required, I'd like to improve and learn new aspects of the language.
So, I've written a class called Sequencer. It works. It's not...
I understand that code found on Stack Exchange is under a Creative Commons License. This stipulates that 1) any projects using the code must be shared with same (or compatible) license, and 2) the author must be credited.
This doesn't work well in some situations, such as closed source projects...
The following Python class is what I am trying to refactor in the case where I have to add validation of the existence of an AWS cloudformation stack before creating it in the method create_cfn_stack :
class AWSPlugin(object):
""" AWS Plugin class """
def __init__(**kwargs):
""" ...
I would like to share a matplotlib real-time monitor plot that I needed for another application. Basic trick is to reverse the time, so that t=0 is now and t=20 is twenty seconds in the past and to plot the signal from 0 at the right towards the left. The core method is update that reverses time ...
Meme: s/old message/new message/
Originator: Unknown
Cultural Height: The 2nd Monitor.
Background:
Often in chat, a user will type something like this:
s/funny/annoying/
In response to what another user said as a "joke edit". Occasionally it is actually used to correct spelling.
The meme ...
I was looking for comments (on performance and general implementation) on the following Linked HashMap implementation in C:
typedef int (*cmp)(void *a, void *b);
typedef size_t (*hash_fn)(void *val, int bound);
typedef struct {
int index;
size_t hash;
void *key;
void *val;
s...
The following code evaluates probability mass function for all possible states of a model.
def PDF(size):
b = np.random.randn(size)
J = np.random.randn((size, size))
density_func = np.zeros(2**size)
states = dec2bin(2**size)
for i in range(2**size):
density_func[i...
I have this Kotlin function:
fun handleCreateUser(
email: String,
existsUserWithEmail: (String) -> Boolean,
createUser: (String) -> User)
: Result {
//some code
}
I'm writing a unit test for that:
@Test(UserAlreadyExists::class)
fun test() {
handleCreateUser("test@test.c...
Putting the 2019 server into the existing 2012 cluster – as expected, this fails due to the operating systems being different
Attempted to just add it to the existing AGs when not being in a cluster – this fails because it’s not in a cluster
Created a separate single node cluster for the 2019 server and attempted to add as a replica to the AGs – this fails as well
Evict it from the existing 2012 cluster
Rebuild it with the Windows Server 2019
Create a new WSFC with one node
Install SQL Server 2017 …
I have been implementing a library of PLC logic blocks (i.e. AND gates, OR gates,
RS flip-flops and TON, TOF and TP timers) in C++. I have decided to model all of
these logic blocks with C++ classes which implement common interface
namespace LogicBlocks
{
class LogicBlk {
public:
enum Logic...
i have tried a lot to get an answer for my problem
i'm working on a restaurant order management system , and apart of the system is a point of sale at the same time(for cashier) , when a customer visit to the restaurant , the cashier be able to fill a receipt,for example (3 pizza with 2 sandwich...
I've created a Node class which contains two important properties:
public Node Parent { get; private set; }
private List<Node> Children { get; set;}
As the name suggests, the Parent object holds information about the ancestor of a certain node, if the parent is the root of the tree, then the ...
I have a script that I want proxybroker in for proxy rotation. How does it go in? with proxybroker having country_code = ['US']> someone please help me.
import os
import requests
import re
import backoff
from bs4 import BeautifulSoup
from fake_useragent import UserAgent
for i in range (10):
...
update1:
- I need to make two different api calls.
- from the result of first api call I am getting id in the variable firstAPIid,
https://reqres.in/api/users?page=2
- I need to pass this id firstAPIid to the second api call.
can you review my code.
I did multiple api calls through promise.
...
well I'm building solar energy web and had idea for interactive circle services menu can anyone tell how I can reach the same result using minimal code/elements (to avoid divseption)? the demo of the intended result is here https://evsdev.ga/dev/home/
any help or pointers would be very appreciat...
I created an algotrithm that groups a sorted list of coordinates into buckets based on their proximity (30) to one another.
Steps:
Create a new key with a list value and pop the first point in the list into it
Scan the list of points for points that are close to it. Push matches to the new li...
I have two dataframes (x and y) that I need to join, conditional on the timestamp in x falling within the time interval of two columns in y. I've accomplished this using data.table::foverlap() by adapting some of the code in this stackexchange question), but in order to get it to work on my data...
I have written a file compressor in python. I would like feedback on code readability, efficiency, and any other nitpicks that you find. Any and all feedback is considered and appreciated!\
compress.py
""" Import Statements """
import os
import random
import re
import string
UNCOMPRESSED_FILE ...
