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1,SELECT *,CASE OrderStatus WHEN 1 THEN 'δ´¦Àí' when 2 THEN 'Ëø¶¨' when
3 THEN 'ÒѳöƱ' ELSE '¹ýÆÚ' END
from  dbo.T_OrderItem
2,
SELECT *,CAST(ROUND(CAST (HostWin AS FLOAT)/(HostWin+HostDraw+HostBear),2)*100 AS varchar)+'%' AS HostWinRate,
                                   CAST(ROUND(CAST (HostDraw AS FLOAT)/(HostWin+HostDraw+HostBear),2)*100 AS varchar)+'%'AS HostDrawRate,
             CAST(ROUND(CAST (HostBear AS FLOAT)/(HostWin+HostDraw+HostBear),2)*100 AS varchar)+'%' AS HostBearRate from V_DoubleBuy
?Convert.ToDateTime(row.ItemArray[0])