Hallo, The following query works fine but returns *all nulls* if no rows between :DaData and :AData
SELECT DEPOSITO_ID, RIPORTO, CARICO, SCARICO, RIPORTO + ESISTENZA AS ESISTENZA, IMPEGNATI, ORDINATI FROM ( SELECT DT.DEPOSITO_ID, (SELECT SUM(DC2.CARICO - DC2.SCARICO) FROM DOC_CORPO DC2, DOC_TESTA DT2 WHERE DC2.DOC_TESTA_ID = DT2.ID AND DC2.ARTICOLO_ID = :ID AND DT2.DATA < :DaData ) AS RIPORTO, SUM(DC.CARICO) as Carico, SUM(DC.SCARICO) as Scarico, SUM(DC.CARICO - DC.SCARICO) as ESISTENZA, SUM(DC.IMPEGNATI) as Impegnati, SUM(DC.ORDINATI) as Ordinati FROM DOC_CORPO DC, DOC_TESTA DT WHERE DC.DOC_TESTA_ID = DT.ID AND DC.ARTICOLO_ID = :ID AND DT.DATA >= :DaData AND DT.DATA <= :AData GROUP BY DT.DEPOSITO_ID ) How I can modify it? Thanks. -- Luigi Siciliano -------------------------- ------------------------------------ ------------------------------------ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Visit http://www.firebirdsql.org and click the Documentation item on the main (top) menu. Try FAQ and other links from the left-side menu there. Also search the knowledgebases at http://www.ibphoenix.com/resources/documents/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------ Yahoo Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/firebird-support/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/firebird-support/join (Yahoo! ID required) <*> To change settings via email: firebird-support-dig...@yahoogroups.com firebird-support-fullfeatu...@yahoogroups.com <*> To unsubscribe from this group, send an email to: firebird-support-unsubscr...@yahoogroups.com <*> Your use of Yahoo Groups is subject to: https://info.yahoo.com/legal/us/yahoo/utos/terms/