Category "mysql"

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

SQL: What am I doing wrong? adding / sum returns null

Totally MySQL newbie here. I'm a network systems management student and I have a problem with one of the exercises. The exercise asks to create a function that

Mysql 8.0.29 installation failed

The installation failed at this point I have already installed Microsoft Visual Studio c++ 2019. I already uninstalled and delete all the hidden folders. I rea

java.sql.SQLException: Column 'serialnumber' not found. (spring boot)

I am writing to-do list web app with spring boot. I Have 2 entities: User (fields: userid (ID), username, password Item (fields: serialnumber (ID), task, userid

MySQL How to join 2 tables and get a combined response

I have 2 tables projects and images. My goal is to get all images of a project and get this kind of response. { "data": { "id": "this is project id",

First time SQL query is taking More time from Spring Boot application

I have to fetch some records and then display in output. In my Spring Boot Application, I am using JPA Specification for creating Criteria and then calling repo

Mysql 8.0 Not supports ST_POINTFROMWKB Any Alter Native?

SELECT * from ip2loc.netacuity as IP where MBRCONTAINS(IP.ip_poly,ST_POINTFROMWKB(POINT(2925896821,0))) [SQL] SELECT * from ip2loc.netacuity as IP where MBRCO

SQL returning all rows and count

I have 3 tables, Property managers, Addresses and Units. I'm trying to get all the rows using the aggregate function COUNT, but it only returns 1 row. I want to

MYSQL query that works out the total amount of days between different time periods for a payroll

I know this question may seem like a simple one and might have been asked before but what makes this tricky is how do I work out the total days for a payroll. N

Relating Wordpress posts to a particular time of the year

I have a 'diary' type blog in which I want to highlight all the posts made around the current day and month, regardless of the year. You could say they need to

Best way to get list of element combinations from two mysql tables

I have two tables: Table "products" ID Name Price Quantity 1 Product A 10 10 2 Product B 20 10 Table "promotions" ID Product ID Type Price Quantity 1 1 disco

MariaDB CTE syntax for parameter list

I'm trying to replace an expensive where in ... query with a CTE. I've done this previously in other sql dialects, but can't get the syntax right for MariaDB/My

Postman Post Request column cannot be found error(JDBC/MYSQL/AWS)

I am working on an independent JDBC/Springboot project and I am having a lot of trouble actually posting any data from postman into MySQL. I have tried looking

Updating MySQL database with jquery, displaying update on page

Standard disclaimer--I am brand new to coding and I have never used a MySQL database before. I also do not know PHP (I know that many of the answers on this sit

Mysql Query to find the status of the SKU items manufactured

I have a delay table (as below) where a SKU is identified by the combination of mmodel and srno and the snapdate.. A SKU present on a specific snapdate indicate

i have an error in establishing a database connection

Hello i have this problem today and i partially solved it using the method described by Fabricio Valencia: IMPORTANT: do NOT delete ibdata1 file. You could dest

Selecting rows with id's from two other tables

Let's call this table service_status: +---------+----------+-------------+------------+ |service_id| output | created_at | updated_at | +---------+--------