sql 查询获取两个产品每个月的第一个和最后一个记录

sql query to fetch first and last records of each month for two products

大家好,我正在写一个查询,可以给我每个月的第一个和最后一个记录,但我正在使用下面的代码检索两个产品的数据

SELECT u1.product, 
       v.month,
       v.mindt,
       u1.opens,
       v.maxdt,
       u2.closingStockvalue 
FROM ( SELECT month, MIN(date) mindt, MAX(date) maxdt 
       FROM closingstock 
       where product='PMS' 
       GROUP BY month) v 
JOIN closingstock u1 ON u1.date=v.mindt 
JOIN closingstock u2 ON u2.date=v.maxdt;

但结果在下面的屏幕截图中,我只想要突出显示的结果,请为下面的屏幕截图提供任何解决方案 enter image description here

SELECT product, 
       v.month,
       v.mindt,
       u1.opens,
       v.maxdt,
       u2.closingStockvalue 
FROM ( SELECT product, `month`, MIN(`date`) mindt, MAX(`date`) maxdt 
       FROM closingstock 
       WHERE product IN ('Product 1', 'Product 2')  -- the list of needed products
       GROUP BY product, `month`) v 
JOIN closingstock u1 USING (product)
JOIN closingstock u2 USING (product)
WHERE u1.`date`=v.mindt
  AND u2.`date`=v.maxdt;