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close;sql.clear;
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1 aa
2 bb
3 cc
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table1
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X31 2010-01-11
3BC 2010-02-03
3AD 2010-02-03
F23 2010-02-09
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2010-01-09 0
2010-01-10 0
2010-01-11 1
2010-01-12 0
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2010-02-09 ......