在不带变量的多行查询中使用 MySQL 中的值

Question

我有这个 mysql 查询，它使用我传递的相同值，超过 3 次。

select p.*,
       ROUND(sum(unitsPerBlock * blocks) / datediff(date(now()), date(?)), 2) as avg
from batches b
inner join products p on b.productID = p.id
where (
          select sum(b1.availableQty)
          from batches b1
          where b1.productID = p.id
            and b1.addedDate between date(?) and date(now())
      ) = 0
and b.addedDate between date(?) and date(now())
group by b.productID
order by avg desc

有什么方法可以让我无需输入以下内容就可以进行此查询

preparedStatement.setString(1, date);
preparedStatement.setString(2, date);
preparedStatement.setString(3, date);

然后就用这个

preparedStatement.setString(1, date);

Answer 1

select p.*,
       ROUND(sum(unitsPerBlock * blocks) / datediff(CURRENT_DATE, input.parameter), 2) as avg
from batches b
inner join products p on b.productID = p.id

CROSS JOIN (SELECT date(?) AS parameter) AS input

where (
          select sum(b1.availableQty)
          from batches b1
          where b1.productID = p.id
            and b1.addedDate between input.parameter and CURRENT_DATE)
      ) = 0
and b.addedDate between input.parameter and CURRENT_DATE
group by b.productID
order by avg desc

在不带变量的多行查询中使用 MySQL 中的值

Use a value in MySQL query in multiple lines without a variable

java

mysql

sql

jdbc