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题解 | 一种普通的解法

select cust_id, order_date from OrderItems a, Orders b where a.order_num = b.order_num and prod_id = 'BR01' ...

Mysql

2022-06-25

21 329

题解 | 一种普通的解法

select prod_name, sum(quantity) quant_sold from Products a,OrderItems b where a.prod_id=b.prod_id group by prod_name

Mysql

2022-06-25

0 249