Question

我运行查询时收到以下错误消息：

ORA-00904：＆＃34; ACCNT＆＃34;：无效的标识符 00904. 00000 - ＆＃34;％s：无效标识符＆＃34; *原因：
*行动：行错误：33列：29

以下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收到此错误。所有字段名称和别名看起来都是正确的。任何帮助将不胜感激。谢谢你的帮助。

Answer 1

GROUP BY无法识别SELECT子句中定义的别名。

如果您的SELECT语句说明了这一点：

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

然后你的GROUP BY语句应该这样说：

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

错误消息/我的代码疑难解答

1 个答案: