update A set B = cast(B as decimal(10,0)) -- 或者update A set B = round(B,0)
例如:update hdcloude01.t_a01_eltable set t_a01_eltable.BatteryDal = round(t_a01_eltable.BatteryDal, 0) where t_a01_eltable.`BatteryDal` is not null;
mysql 将指定列的浮点数转化为整数
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