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2006-04-18

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SELECT CONVERT(int,FLOOR(CONVERT(float, CONVERT(varchar, 
    DATEPART(YYYY, ThisDate)) +'.'+ 
    RIGHT('00' + CONVERT(varchar, DATEPART(MM, ThisDate)), 2) + 
    RIGHT('00' + CONVERT(varchar, DATEPART(DD, ThisDate)), 2)) - 
    CONVERT(float, CONVERT(varchar, DATEPART(YYYY,BirthDate)) + '.' + 
    RIGHT('00' + CONVERT(varchar, DATEPART(MM, BirthDate)), 2) + 
    RIGHT('00' + CONVERT(varchar, DATEPART(DD, BirthDate)), 2)))) AS Age
FROM T_Hoge
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