super.. muchas gracias a ambos. olbeup y guillotmarc.
areglada la aquery sale asi.
Código SQL
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SELECT
PEDI.ID
,PEDI.RFC_PERTENECE_EMPRESA
,PEDI.CODIGO AS CODIGOPEDI
,PEDI.UCODADUANA ,PEDI.PEDIMENTONUM
,PEDI.PEDIMENTOFECHA
,PEDI.STATUS
,ADU.ADUANA
,ADU.CODIGO AS CODIGOADU
,ADU.STATUS
FROM Pedimentos AS PEDI
INNER JOIN Aduanas AS ADU
ON ADU.CODIGO = PEDI.UCODADUANA
WHERE PEDI.RFC_PERTENECE_EMPRESA = 'NWM9709244W4'
AND PEDI.CODIGO = 'NWMPEDIMENTOS0003'