MySQL-显示所有排列吗？

一尘不染

MySQL-显示所有排列吗？

sql

表格1：

Id   MyFK   f_name   l_name
===========================
1    100    John     Doe
2    100    Little   Timmy

表2：

Id   MyFK   item     price
===========================
1    100    Car      200
2    100    Bike     100

在MySQL中，我如何生成这样的表：

Id   MyFK   f_name   l_name  item  price
========================================
1    100    John     Doe     Car   200
1    100    John     Doe     Bike  100
2    100    Little   Timmy   Car   200
2    100    Little   Timmy   Bike  100

阅读 196

2021-05-30

共1个答案

一尘不染

CREATE TABLE person
SELECT 1 AS Id, 100 AS MyFK, 'John' AS f_name, 'Doe' AS l_name UNION
SELECT 2, 100, 'Little', 'Timmy';

CREATE TABLE vehicle
SELECT 1 AS Id, 100 AS MyFK, 'Car' AS item, 200 AS price UNION
SELECT 2, 100, 'Bike', 100;

SELECT p.Id, p.MyFK, p.f_name, p.l_name, v.item, v.price
FROM person p
CROSS JOIN vehicle v;

2021-05-30