Sql er\u id=x\u order.order\u id 和x_pick.pick_状态( “保留”， “等等，回答”， “开始” ) 和x_order.order_状态( “保留”， “开始” )

你好,，

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我得到一个错误，GrandVisite是一个无效的标识符，我不确定我是否会与其他标识符一起得到它。任何关于这一点的信息都将是惊人的。因为我看不出它为什么不同于其他的。

您不能在同一

select

子句中引用生成它的

别名

    select x_pick.prod_code,
    x_order.order_state,
    x_pick.pick_state,
    x_pick.pick_qty,
    x_pick.pick_location,
    x_order.wave_id,
    x_prod.normal_pick_area,
    x_apr_loc.location,
    x_order.reqd_despatch_time,
    x_prod.bncd_awkward_item,
    master.loc_count
from x_pick,
    x_order,
    x_prod,
    x_apr_loc,
    -- True Qty--
    (
    select 
        sub1.loc_count,
        area.normal_pick_area,
        (case when SUM(aerosolqty) = 0 then 0 when SUM(aerosolvisit) = 0 then 0 else SUM(aerosolqty) / SUM(aerosolvisit) end) as aerosolratio,
        (case when SUM(hazqty) = 0 then 0 when SUM(hazvisit) = 0 then 0 else SUM(hazqty) / SUM(hazvisit) end) as hazratio,
        (case when SUM(hvqty) = 0 then 0 when SUM(hvvisit) = 0 then 0 else SUM(hvqty) / SUM(hvvisit) end) as hvratio,
        (case when SUM(hlopqty) = 0 then 0 when SUM(hlopvisit) = 0 then 0 else SUM(hlopqty) / SUM(hlopvisit) end) as hlopratio,
        (case when SUM(plqty) = 0 then 0 when SUM(plvisit) = 0 then 0 else SUM(plqty) / SUM(plvisit) end) as plratio,
        (case when SUM(miniloadqty) = 0 then 0 when SUM(miniloadvisit) = 0 then 0 else SUM(miniloadqty) / SUM(miniloadvisit) end) as miniloadratio,
        (case when SUM(aprqty) = 0 then 0 when SUM(aprvisit) = 0 then 0 else SUM(aprqty) / SUM(aprvisit) end) as aprratio,
        (case when SUM(apr2qty) = 0 then 0 when SUM(apr2visit) = 0 then 0 else SUM(apr2qty) / SUM(apr2visit) end) as apr2ratio,
        (case when SUM(aprawkqty) = 0 then 0 when SUM(aprawkvisit) = 0 then 0 else SUM(aprawkqty) / SUM(aprawkvisit) end) as aprawkratio,
        (SUM(aerosolqty + hazqty + hvqty + hlopqty + plqty + miniloadqty + aprqty + apr2qty + aprawkqty)) as grandtotal,
        (SUM(aerosolvisit + hazvisit + hvvisit + hlopvisit + plvisit + miniloadvisit + aprvisit + apr2visit + aprawkvisit)) as grandvisit



    from 
        (select area.normal_pick_area,
            (case when area.normal_pick_area = 'Aerosol' then trueqty else 0 end) as aerosolqty,
            (case when area.normal_pick_area = 'Aerosol' then truevisits else 0 end) as aerosolvisit,
            (case when area.normal_pick_area = 'Haz Shed' then trueqty else 0 end) as hazqty,
            (case when area.normal_pick_area = 'Haz Shed' then truevisits else 0 end) as hazvisit,
            (case when area.normal_pick_area = 'High Value' then trueqty else 0 end) as hvqty,
            (case when area.normal_pick_area = 'High Value' then truevisits else 0 end) as hvvisit,
            (case when area.normal_pick_area = 'HLOP' then trueqty else 0 end) as hlopqty,
            (case when area.normal_pick_area = 'HLOP' then truevisits else 0 end) as hlopvisit,
            (case when area.normal_pick_area = 'Pallet Live' then trueqty else 0 end) as plqty,
            (case when area.normal_pick_area = 'Pallet Live' then truevisits else 0 end) as plvisit,
            (case when area.normal_pick_area = 'APR' then trueqty else 0 end) as aprqty,
            (case when area.normal_pick_area = 'APR' then truevisits else 0 end) as aprvisit,
            (case when area.normal_pick_area = 'Miniload' then trueqty else 0 end) as miniloadqty,
            (case when area.normal_pick_area = 'Miniload' then truevisits else 0 end) as miniloadvisit,
            (case when area.normal_pick_area = 'APR 2' then trueqty else 0 end) as apr2qty,
            (case when area.normal_pick_area = 'APR 2' then truevisits else 0 end) as apr2visit,
            (case when area.normal_pick_area = 'APR Awkward' then trueqty else 0 end) as aprawkqty,
            (case when area.normal_pick_area = 'APR Awkward' then truevisits else 0 end) as aprawkvisit
        from (
            select 
                x_prod.normal_pick_area,
                x_pick.pick_location,
                (
                case when x_prod.normal_pick_area = 'TP' then 'Miniload' when x_prod.normal_pick_area = 'MTP' then 'Miniload' when x_prod.normal_pick_area = 'PL' then 'Pallet Live' when x_prod.normal_pick_area = 'HLOP' then 'HLOP' when x_prod.normal_pick_area = 'STILLAGE' then 'High Value' when x_prod.normal_pick_area = 'ZA' then 'Aerosol' when x_prod.normal_pick_area = 'ZH' then 'Haz Shed' when x_prod.normal_pick_area = 'APR'
                    and Substr(x_pick.pick_location, 3, 2) < '22'
                    and x_prod.bncd_awkward_item = 'YES' then 'APR Awkward' when x_prod.normal_pick_area = 'APR'
                    and Substr(x_pick.pick_location, 3, 2) < '22'
                    and x_prod.bncd_awkward_item = 'NO' then 'APR' when x_prod.normal_pick_area = 'APR'
                    and Substr(x_pick.pick_location, 3, 2) > '21'
                    and x_prod.bncd_awkward_item = 'NO' then 'APR 2' when x_prod.normal_pick_area = 'APR'
                    and Substr(x_pick.pick_location, 3, 2) > '21'
                    and x_prod.bncd_awkward_item = 'YES' then 'TD1' else 'Unknown' end
                )
                    from x_pick,x_prod) area, qtyvisit, 
                        ((select sub1.loc_count,x_pick.pick_qty,
                            (case when sub1.loc_count < 2 then x_pick.pick_qty else x_pick.pick_qty / sub1.loc_count end) as trueqty,
                            (case when sub1.loc_count < 2 then 1 else 1 / sub1.loc_count end) as truevisits
                    from x_pick,sub1) truev from  
                (
                    select 
                    x_pick.prod_code,
                    area.normal_pick_area,
                    Count(distinct (x_apr_loc.location)) as loc_count
                    from 
                    x_apr_loc,
                    x_pick
                    where 
                    x_apr_loc.prod_code(+) = x_pick.prod_code
                    group by 
                    x_pick.prod_code)) sub1)
                    x_pick)
        ) master


where x_pick.prod_code(+) = sub1.prod_code
    and x_pick.prod_code = x_apr_loc.prod_code(+)
    and x_pick.prod_code = x_prod.prod_code
    and x_pick.order_id = x_order.order_id
    and x_pick.pick_state in (
        'RESERVED',
        'WAIT REPLEN',
        'STARTED'
        )
    and x_order.order_state in (
        'RESERVED',
        'STARTED'
        )

要计算
grandratio
您使用以下表达式，该表达式使用别名
grandvisit

SELECT Sum(aerosolvisit + hazvisit + hvvisit + hlopvisit
           + plvisit + miniloadvisit + aprvisit + apr2visit
           + aprawkvisit) AS grandvisit 

您可以使用派生表来执行此操作

SELECT CASE
         WHEN Sum(grandtotal) = 0 THEN 0
         WHEN Sum(grandvisit) = 0 THEN 0
         ELSE Sum(grandtotal) / Sum(grandvisit)
       END AS grandratio 

注意：您使用的是旧式外部联接（
+=
）。最好使用可读性更强的
Right/Left
联接来标记您正在使用的dbms。这些代码是特定于产品的，没有人会在这些乱七八糟的代码中进行筛选。很可能是一个小错误，但你需要自己解释一下。我已经用我在你评论后编辑的代码修改了原始帖子。谢谢你的帮助，因为我知道我错在哪里了。我不确定我是否能像以前那样嵌套子查询。
SELECT CASE
         WHEN Sum(grandtotal) = 0 THEN 0
         WHEN Sum(grandvisit) = 0 THEN 0
         ELSE Sum(grandtotal) / Sum(grandvisit)
       END AS grandratio 
From 
(
SELECT Sum(aerosolvisit + hazvisit + hvvisit + hlopvisit
           + plvisit + miniloadvisit + aprvisit + apr2visit
           + aprawkvisit) AS grandvisit 
 ...
) A