错误消息/故障排除我的代码

Posted 2023-05-09

【中文标题】错误消息/故障排除我的代码

【英文标题】：Error message / troubleshooting my code

【发布时间】：2014-08-01 16:22:30

【问题描述】：

我在运行查询时收到以下错误消息：

ORA-00904：“ACCNT”：标识符无效 00904. 00000 - “%s：无效标识符” *原因： *行动： 行错误：33 列：29

这是我正在运行的代码：

select 
pdl.business_unit as BU,
pdl.deptid as BR,
pb.in_service_dt as IN_SERVICE_DATE,
pdl.asset_id as ASSET_ID,
pa.descr as DESCRIPTION,
pa.serial_id as SERIAL_NUMBER,
pdl.account as ACCNT,

case when pdl.trans_in_out = 'I' then 'TRANSFERRED TO' else pdl.deptid end as DEPTID,

MAX(CASE WHEN (pdl.trans_in_out = 'O') then pdl.deptid END) as ACCT_FROM,
MAX(CASE WHEN (pdl.trans_in_out = 'I') then pdl.deptid END) as ACCT_TO

From ps_dist_ln pdl,
ps_book pb,
ps_asset pa

where 
pdl.business_unit = 'A0465'
and pdl.fiscal_year = '2014'
and pdl.asset_id = '000000000151'
and pdl.accounting_period = '12'
and pdl.trans_type = 'RCT'
and pdl.distribution_type = 'FA'
and pdl.book = 'PERFORM'
and pdl.asset_id = pb.asset_id and pdl.business_unit = pb.business_unit
and pdl.asset_id = pa.asset_id and pdl.business_unit = pa.business_unit

GROUP BY
BU,
BR,
IN_SERVICE_DATE,
ASSET_ID,
DESCRIPTION,
SERIAL_NUMBER,
ACCNT,
DEPTID

我无法弄清楚为什么会出现此错误。所有字段名称和别名看起来都正确。任何帮助将不胜感激。谢谢你的帮助。

【问题讨论】：

从这里：***.com/questions/25082571/… -- 我回答了，没有注意到 Oracle 标签。我给出了 SQL-Server 的答案。不确定 Oracle 是否支持“CASE”语法。请清楚 RDBMS。我删除了 SQL-Server 标记。

【参考方案1】：

GROUP BY 不识别 SELECT 子句中定义的别名。

如果您的 SELECT 语句这样说：

SELECT
    pdl.business_unit as BU,
    pdl.deptid as BR,
    pb.in_service_dt as IN_SERVICE_DATE,
    pdl.asset_id as ASSET_ID,
    pa.descr as DESCRIPTION,
    pa.serial_id as SERIAL_NUMBER,
    pdl.account as ACCNT,
    case when pdl.trans_in_out = 'I' then 'TRANSFERRED TO' else pdl.deptid end AS DEPTID

那么你的 GROUP BY 语句应该这样写：

GROUP BY 
    pdl.business_unit,
    pdl.deptid,
    pb.in_service_dt,
    pdl.asset_id,
    pa.descr,
    pa.serial_id,
    pdl.account,
    case when pdl.trans_in_out = 'I' then 'TRANSFERRED TO' else pdl.deptid end

【讨论】：

不错。还有一个很好的例子说明为什么别名不起作用：***.com/a/2681576/429982

不客气，@Shaves。如果此答案或任何答案解决了您的问题，请单击复选标记考虑accepting it。这向更广泛的社区表明您找到了解决方案，并为回答者和您自己赢得了一些声誉。