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  123    2009/1/8
  1234    2009/1/9
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課³Ì號    123      1234
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DM1 DM2 MC1 VAL
101 1 c1 100
101 1 c2 80
101 1 c3 40
101 2 c1 30
101 2 c2 80
102 4 c1 9
102 6 c2 50

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DM1 DM2 c1 c2 c3
101 1 100 80 40
101 2 30 80 
102 4 9   
102 6  50



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union all select 101,1,'c3&#


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