Resetting all woocommerce products stock to 0
I have around 5k products in my store and I wonder if there is a way via PhpMyAdmin or any other plugin you might know to set all my stock levels from variables products to 0 due to the fact…
Mysql – Make a SQL select query for each item in the list?
Let's say I have a student table like this: ID Name Major Gender 1 Alice Math F 2 Bob Biology M 3 Candice Econ F And I have a list of data like this: names=["Alice,"Bob","Candice"] majors=["Math","Biology","Econ"] genders="["F","M","F"] I want to…
Postgresql – Inserting dummy data into Postgres table
I have got the following Postgres table: create table test ( id serial, contract varchar, amount0 int, amount1 int, price double precision ); I would like to insert 100 rows of dummy data that conforms to the following: – In…
Postgresql – How to make a subquery get latest updates during UPDATE statement
I have two tables, organization and address. organization table has an address_id column but all the rows have address_id set to NULL. I want to SET address_id in organization table equal to a random id in address table but I…
Mysql – SQL Flag By Group
CREATE TABLE t (STUDENT int, SCORE int, DATE date) ; INSERT INTO t (STUDENT, SCORE, DATE) VALUES (1, 6, '2022-02-01 00:00:00'), (1, 2, '2022-03-12 00:00:00'), (1, 5, '2022-04-30 00:00:00'), (2, 2, '2022-04-12 00:00:00'), (2, 0, '2022-04-17 00:00:00'), (2, 7, '2022-05-08…
Postgresql – Query Error: error: syntax error at or near "SELECT"
I am trying 8weeksqlchallenge, and I usually work with MySQL and the error codes are quite cleaner there, but not so much on dbfiddle.com This is my schema CREATE SCHEMA dannys_diner; SET search_path = dannys_diner; CREATE TABLE sales ( "customer_id"…
Mysql – Optimizing INNER JOINS SQL query
I have a query like this: SELECT DISTINCTROW customers.id, customers.customer_name FROM customers INNER JOIN rentals ON customers.id = rentals.id_customer INNER JOIN rentals_billing ON rentals.id = rentals_billing.id_rental INNER JOIN vehicles ON vehicles.id = rentals.id_vehicle WHERE (rentals_billing.customer_id_facsimile IS NULL AND rentals_billing.rental_payable =…
Postgresql – Split a row into columns in SQL
E1 E2 E3 EXPLANATION AMOUNT 01 PERSONNEL EXPENSES 5000 01 1 OFFICERS 5000 01 1 1 BASIC SALARIES 3000 01 1 2 INCREASES AND COMPENSATION 2000 02 GOODS AND SERVICES PURCHASE EXPENSES 8000 02 1 SERVICE PROCUREMENT 8000 02 1…
Mysql – Drop primary key error: You have an error in your SQL syntax
I am new to programming and still learning. I have a project which is developed using PHP and MySQL. I'm facing an issue in SQL where I wanted to drop the primary key for the table I created. It would…
Reactjs – Application fails to start when I add a custom method in Repository interface
My application runs fine when it doesn't include any custom method in Repository. The moment I add a custom repo method in repo interface, it gives exceptions and application fails to start. package com.library.repo; import java.util.List; import org.springframework.data.jpa.repository.JpaRepository; import org.springframework.data.jpa.repository.Query;…