I have a table which somewhat looks like this Table A: Voter_id Id ---------------------- null | DEPT 1f7h null | DEPT 3k9n null | DEPT 2lp0 null | DEPT 2f6k (250,000 rows like this) This table Table A has close…
Can anyone help mi solve this problem? I want to show list of users in the app. Logcat error: E/RecyclerView: No adapter attached; skipping layout User code data class Users(val userId : String = "", val name : String =…
I'm using AWS RDS Aurora Postgres 12.9. I have a database in an "initial state" with some data on it, I want to insert/update many data on it, and then easily restore it to the "initial state" whenever I want.…
in the following example I have a company named Colors Company that owns many shops { _id: ObjectId("78391283"), name: "Colors company", shops: [ {shopID: ObjectId("123456a1cb"), income: 0}, {shopID: ObjectId("2a1cb67890"), income: 0}, {shopID: ObjectId("2a1cb010111"), income: 0}, ... ], } I need…
My question is relevant to the concept of searching data. I am developing a project with Laravel. The question is, which is efficient? Get data from the database and search through PHP, Or prepare the SQL command and search inside…
Here is the code example: app.js const express = require("express"); const app = express(); const cors = require("cors"); require("dotenv").config({ path: "./config.env" }); const port = process.env.PORT || 5000; app.use(cors()); app.use(express.json()); app.use(require("./routes/record")); // get driver connection const dbo = require("./db/conn"); app.listen(port,…
I'm looking to improve the query performance of the following mysql query: SELECT * FROM items WHERE items.createdAt > ? AND items.createdAt + items.duration < ? What are the best indexes to use here? Should I have one for both…
i have json server fake data in my react app and here is my data: {"quotes": [ { "id": 1, "quote": "Javascript is my life", "author": "ali pasha", "comments": [], }, { "id": 2, "quote": "Learning react is very fun",…
the screenshot of MySQL exportMySQL tables do not show when trying to export my schema... I can see those tables in my schema, etc but not when trying to export. What could be wrong? I am using MySQL Workbench on…
I'm trying to retrieve data from database and display all the data using foreachloop. Im getting first row data easily without foreach loop but whenever I try using loop the error displays "foreach() argument must be of type array|object, string…