Question

我是编写SQL代码的新手，当我尝试运行以下代码时，我得到了一个无效的标识符。我想知道我试图求和的字段是否会引起我的问题。

我试图获得1个记录，其中depr和accumdepr字段已被添加到一起

我也想知道你是否有任何可以建议的资源可以帮助我变得更加愚蠢。任何帮助将非常感谢.....

SELECT pa.BUSINESS_UNIT as bu,
pc.DEPTID as deptid,
pa.ASSET_ID as assetnumber,
pa.DESCR as descr,
pa.IN_SERVICE_DT as inservdate,
pc.COST as assetcost,
pb.METHOD as deprecmeth,
pb.LIFE as assetlife,
Sum(pdr.DEPR) as depr,
Sum(pdr.DEPR_YTD) as accumdepr
from PS_ASSET pa
inner join PS_COST pc on pc.ASSET_ID = pa.ASSET_ID
inner join PS_BOOK pb on pb.ASSET_ID= pa.ASSET_ID
inner join PS_DEPR_RPT pdr on pdr.ASSET_ID= pa.ASSET_ID

where pa.BUSINESS_UNIT = 'A0057'
and pa.ASSET_ID = '000000000020'
and pdr.FISCAL_YEAR = '2014'
and pdr.ACCOUNTING_PERIOD = '11'

group by bu,
deptid,
assetnumber,
descr,
inservicedate,
assetcost, 
deprecmeth,
assetlife,
depr,
accumdepr;

Answer 1

GROUP BY子句应仅包含用于标识属于同一组的行的列。由于您对pdr.DEPR和pdr.DEPR_YTD的SUM感兴趣，我假设您对具有相同bu，deptid，assetnumber，descr，inservciedate，asstecost，deprecmeth和assetlife的行的SUM感兴趣。 SUM（dpr.DEPR）和SUM（dpr.DEPR_YTD）是您要查找的计算。

要解决此问题，您需要删除GROUP BY中的最后两个条目，如下所示：

GROUP BY bu,
         deptid,
         assetnumber,
         descr,
         inservicedate,
         assetcost, 
         deprecmeth,
         assetlife;

Answer 2

您无法引用您在select中定义的列的别名，因此请执行此操作。此外，您不能对组功能进行分组，因此开始使用accumdepr组没有多大意义。

SELECT pa.BUSINESS_UNIT as bu,
pc.DEPTID as deptid,
pa.ASSET_ID as assetnumber,
pa.DESCR as descr,
pa.IN_SERVICE_DT as inservdate,
pc.COST as assetcost,
pb.METHOD as deprecmeth,
pb.LIFE as assetlife,
Sum(pdr.DEPR) as depr,
Sum(pdr.DEPR_YTD) as accumdepr
from PS_ASSET pa
inner join PS_COST pc on pc.ASSET_ID = pa.ASSET_ID
inner join PS_BOOK pb on pb.ASSET_ID= pa.ASSET_ID
inner join PS_DEPR_RPT pdr on pdr.ASSET_ID= pa.ASSET_ID

where pa.BUSINESS_UNIT = 'A0057'
and pa.ASSET_ID = '000000000020'
and pdr.FISCAL_YEAR = '2014'
and pdr.ACCOUNTING_PERIOD = '11'

group by
pa.BUSINESS_UNIT,
pc.DEPTID,
pa.ASSET_ID,
pa.DESCR,
pa.IN_SERVICE_DT,
pc.COST,
pb.METHOD,
pb.LIFE;

ORA-00904：“ACCUMDEPR”：无效的标识符/选择查询

2 个答案: