FROM

  (

  SELECT S1.SDATE,SUM(S1.AMT) AS AMT01

  FROM PACKLIB.SALE S1

  WHERE S1.CUS ='00020'

   AND S1.PKIND1 ='1'

   AND S1.FAC ='01'

   AND S1.SDATE ='20080107'

 GROUP BY S1.SDATE

 ) A1

full outer join

(

 SELECT S2.SDATE,SUM(S2.AMT) AS AMT02-

  FROM PACKLIB.SALE S2

 WHERE S2.CUS ='00020'

   AND S2.PKIND1 ='1'

   AND S2.FAC ='02'  

   AND S2.SDATE ='20080107'

GROUP BY S2.SDATE 

)A2

on A1.SDATE = A2.SDATE

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에러 column qualifier or table A2 underfined (state:S1000, Native Code : FFFFEC77)

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