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Tag: mysql

mysql: natural join

everyone! I’m currently trying to make a simple table with MySQL that satisfies the below condition. make a table of ship names, displacement, and numGuns with ones participated ‘Guadalcanal’ battle 3 tables are needed to make this. I’ve tried several codes but they all failed. I also …

How to compare within a partition across all possible values in MySql?

I am trying to compare values for each user per each retailer transaction. This is the input example table: Now, I want to compare for each distinct user for the same retailer if the amount spent was within 30% across all purchases. Let’s say that the amount spent of the first and second transaction is …

how to get sql result as objects

I have three tables: Table USER id name email Table CAMPUS id user_id (foreign key) name Table POST id title user_id (foreign key) A User belongs to a Campus, and a Post belong to a User. I want to write a query to fetch posts inner join with user inner join with campus. The result i get: [{ id username

Select count(column) from table of mysql in php

I have a database and I am trying to make a website and connect it to my database. I am trying to count the number of instances in a column but I am having trouble. I have this so far: Answer I hope you have the connection done. Here something is column which you are using to filter the output