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PD961A µoªí©ó 2010-6-28 11:40



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¥»©«³Ì«á¥Ñ kimbal ©ó 2010-7-4 13:37 ½s¿è

SELECT x.¤é´Á, AVG(y.³Ì§C) moving_average from
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where X.¤é´Á>= '2007-05-30'
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GROUP BY x.¤é´Á
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SELECT x.¤é´Á, AVG(y.³Ì§C) moving_average from
STOCK_DAY X, STOCK_DAY Y
where X.¤é´Á>= '2007-05-3 ...
kimbal µoªí©ó 2010-7-4 13:32


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