I am making an application in Flutter which is like an online market where users can login and post things to sell. The users can add photos to their ...

I'm doing row reduction on 3 dimensional ndarray (KxMxN), i.e., taking all values of a column and use a reduce function to produce a scalar value; eve...

I have a variable t: Arc> to write/read in the main thread, and in multiple other threads (number of threads = n), t is cloned only for releasing reso...

I have a variable t: Arc> to write/read in the main thread, and in multiple other threads (number of threads = n), t is cloned only for releasing reso...

I'm setting up my server and I can connect to the DB using `mysql -u root -p` and by ssh from outside the server. But I am getting `SQLSTATE[HY000...

I've been chipping away at some code to improve its speed. The best I've been able to do so far is as shown in the reproducible example below, but I a...

I'm trying to read sheets and insert them into postgresql to make the staging tables in my etl_table. The function was working, but now I'm getting a ...

I'm not really sure but why the following DocumentFile's exist and canWrite functions takes too much CPU time compare to File when working with built-...

JVM has a great set of tools to find the hotspots in your application. By enabling JMX and connecting with JProfiler / VisualVm we can quite quickly f...

There is a function that takes data from the database and creates html code with the required number of buttons, This code needs to be embedded on the...

I need to move the selected row up or down in the datagridview when the button is clicked, but the datagridview is bound to an sql database. At first ...

What is the proper way to do that? My goal is to save in database the count of minutes of the video the user has watched until he closed the page and ...

I am learning sqlite3 in Node.js and having problem with following code var sqlite3 = require('sqlite3').verbose(); var db = new sqlite3.Database('fir...

My issue is that we use Debezium to monitor the DB events and even when the is a simple update of the data present in the plugin table, the OCS invent...

This is my main class: public class Warehouse { public List WarehouseRelationList { get; private set; } = new List(); public void AddWarehous...

I experimenting with.net 8 aspire currently. I am following Microsoft documentation. I did a simple project with Backend api, frontend, and Redis cach...

I am getting a System.NullReferenceException: Object reference not set to an instance of an object. when I delete an item from the SQLite database a...

I have an IG with the following query for PL/SQL returning function body: declare L_sql varchar2(4000); l_instead varchar2(100); begin l_sql := 'selec...

I am trying to delete a row from my database but nothing worked. here is my code: import mysql.connector mydb = mysql.connector.connect(host="localhos...

I have an object set initial data by useState like this const Price = () => { const [price, setPrice] = useState({ vehicleType: "", price: 0...

I have an entity class in my Spring Boot application where I've implemented a custom ID generator for the ID field. However, the ID isn't generated up...

I have these three tables: hotel hotel_id hotel_name room room_id hotel_id room_price room_id date price I k...

I have these three tables: hotel hotel_id hotel_name room room_id hotel_id room_price room_id date price I k...

I have a Time In and Time Out buttons in a form. And I have a VBA Module code that saves the last entered data/last row of an entry from an Excel Tabl...

I need query in django orm to clubs list endpoint. with clubs where user is the club owner, or user is Tournament Referee (with empty end_date, or the...