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看起來Oracle沒有在子查詢中看到別名。返回的錯誤是:ORA-00904:「C」,「FLH_PUNTO_EROGAZIONE」:identificativo非VALIDO爲什麼Oracle在子子查詢中看不到別名?
看來甲骨文只是看起來別名在1度對外聲明
SELECT (SELECT 1
FROM (SELECT 1 AS SomeAlias
FROM out.ANAG_PDF_PWR_T840
WHERE campo34 = c.flh_punto_erogazione
UNION
SELECT 1
FROM out.ANAG_PDF_T812
WHERE campo34 = c.flh_punto_erogazione) Something)
FROM etl_elab_interf_flat f, eni_flussi_hub c, eni_info_extra_forn ief, conf_forniture forn
WHERE f.eif_campo198(+) = c.flh_id_messaggio
AND f.idde_identif_dati_ext_id(+) = c.idde_identif_dati_ext_id
AND c.flh_punto_erogazione IN ('8003576015', '8003576054', '8003576551', '8003576565')
AND eif_campo200 IN ('FORNITURA_ENI')
AND c.flh_flag_ann = 'N'
--
AND forn.forn_old_codice_fornitura (+) = c.flh_fornitura
AND forn.forn_fornitura_id = ief.forn_fornitura_id(+);
您是否收到錯誤?意外的結果?請澄清你的問題和確切的問題。 – MatBailie
該製劑的工作原理: (SELECT DECODE(COUNT(1),0, '否', 'SI') FROM(SELECT campo34 AS campo34 FROM out.ANAG_PDF_PWR_T840 UNION SELECT campo34 FROM out.ANAG_PDF_T812 )東西 WHERE campo34 = c.flh_punto_erogazione ) 「Flusso creaz。Pdf presente OUT」, – Revious