Category "mysql"

Use Node js with mysql for onclick function

I have tried to show sql query result on click a button in node js Like on click a button, it show the result of sql query below that button

Use Node js with mysql for onclick function

I have tried to show sql query result on click a button in node js Like on click a button, it show the result of sql query below that button

InnoDB Write Log efficiency is too high more than 100% (1953.15%)?

I have MariaDB on my server with 16/32 CPU cores, Everything seems to be ok when running mysqltuner except InnoDB Write Log efficiency, taking 1953.15%, wonderi

Shard key with mostly even distribution. How to handle outliers?

I'm learning about sharding approaches. How to achieve good horizontal scalability with a large number of shards in an IO-heavy application. Below I describe a

How to get data from MySQL and after 30 second fetch it again in Node.js?

I'm trying to do is fetching the data according to timestamp from DB once (call it origin) and wait for 30sec fetch it again with same query(call it recent) in

Multiple SQL querys in NodeJS

how would i make multiple MySQL querys in NodeJS, in the following code con = mysql.createConnection(...) con.query(`SELECT * FROM BRUGERE WHERE username = ${us

pd.period_range(...) equivalent function in mysql

I have to generate 'yearquarter' combinations within a specific date. example: start_date = '2021-01-30' end_date = '2022-05-01' Output: result = [ '2021Q1',

I am trying to migrate the table I have created but I keep getting an error that my database is unknown.I use XAMPP 3.3

SQLSTATE[HY000] [1049] Unknown database 'laravel' (SQL: select * from information_schema.tables where table_schema = laravel and table_name = migrations and ta

Sql: hackerrank aggregation

Samantha was tasked with calculating the average monthly salaries for all employees in the EMPLOYEES table, but did not realize her keyboard's key was broken un

Get a path from manager to an employee in mysql 8

I have a question in term of my database courses, hope that you can help me. The table bellow is an exemple: +------------------------------------+ |ID_EMPLOYEE

How do I insert text into MySQL with Julia?

I'm struggling to get text from an input file into MySQL with Julia. Using this code: using CSV using MySQL conn = DBInterface.connect(MySQL.Connection, "local

Why Hibernate cant create DB? SQLSyntaxErrorException and CommandAcceptanceException

I have three DBs, of which hibernate can only create 2/3. Can someone explain why hibernate can not create a third table "goods" 1: org.hibernate.tool.schema.sp

workbench Import dump Mysql loading forever and not processing

I'm trying to migrate from a dump to a base in OceanDigital, and I'm having the following problem: the dump keeps loading forever without any signal that it's p

Using mysql in github workflow always leads to SQLSTATE[HY000] [1045] Access denied for user error

Im currently configuring a CI pipe for my laravel project via github actions. This is my build.yml file # GitHub Action for Laravel with MySQL and Redis name: A

SQL FOREIGN KEY ERROR (errno: 150 "Foreign key constraint is incorrectly formed")

Hi I have this three very simple tables but I can't fix it to get the right format of foreign key. CREATE TABLE company( company_name varchar(30) UNIQUE NOT NUL

Can i have a one to many from a select case statement?

I have two tables that I'm working on for a project at work. The first table (crm_users) has id, username and 16 fields that start with "state_license_" with a

Object reference not set to an instance of an object on mySQL Installer while configuring mySQL Server 8.0.25

I recently deleted mySQL and now when i am trying to reinstall it is giving me an error while configuring the mySQL Server i have tried deleting everything from

MYSQL workbench 8 Migration wizard error "SystemError: TypeError("'>' not supported between instances of 'NoneType' and 'int'")"

I've been trying to migrate a PSQL (v13.4) database to MySQL (8.0.26) with the Migration wizard tool from Mysql Workbench. I've had to change some code from "db

Subtracting rows based on condition

Suppose I have a table that looks like this: OrderNumber OrderType 1 D 1 D 1 R 2 D 2

Error when trying to use count and group by

Here is my query: SELECT DISTINCT takes.semester, takes.sec_id, takes.course_id, instructor.name, COUNT(takes.ID) FROM takes INNER JOIN teaches ON takes.cour