yuadh

分类

/ 注册

全部文章（共2篇）

题解 | 宠物猫繁育族谱追溯与遗传病风险评估

with recursive generat_table as ( select a.child_cat_id descendant_id,a.child_cat_name descendant_name,1 as generation,ROUND(a.health_score * POW(...

2026-03-03

0 5

题解 | 分析每个商品在不同时间段的销售情况

select a.product_id,a.product_name,case when b.total_amount is null then 0.00 else ROUND(b.total_amount,2) end q2_2024_sales_total,rank() over(partiti...

2026-02-26

0 7