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我有以下查询,我将打电话QUERY1:Netezza公司SQL For循环
with a as (
select customer_key as cust,
sum(sales)*1.0/4 as avg_sales
sum(returns)*1.0/4 as avg_return
count(distinct order_key)*1.04 as avg_num_orders
from orders_table
where purch_year between 2011 and 2014
group by cust
order by random()
),
b as (
select *
from a
where avg_num_orders > .25
limit 100000
)
select case
when avg_num_orders <= 1 then 'Low'
when avg_num_orders between 1 and 4 then 'Medium'
when avg_num_orders > 4 then 'High'
end as estimated_frequency,
count(cust) as num_purchasers_year,
sum(avg_num_orders) as num_orders_year,
avg(avg_num_orders) as avg_num_order_year,
sum(avg_sales) as avg_sales_year,
sum(avg_total_return) as avg_return_year,
avg_sales_year/num_orders_year as AOV,
avg_sales_year/num_purchasers_year as ACS,
stddev(avg_sales) as sales_stddev
from b
where avg_num_orders > .25
group by estimated_frequency
order by estimated_frequency;
我想要写代码,做以下(这是不行的,我所提供的伪代码)。我无权创建程序。
Create table temp1
for i in 1..100 loop
insert into temp1 the result of QUERY1
end loop
然后
select estimated_frequency,
avg(acs),
avg(sales_stddev)
from temp1
group by estimated_frequency
从本质上讲,我想运行QUERY1 100次,并将结果存储在一个名为temp1中的表,然后计算在temp1中有一些平均数,一旦我感到一切都成定局。
谢谢您的帮助