声明值的SQL Server划分

Question

我正在使用SQL Server 2005，我想检查“TypeHopper_0x”的值if = 2，将“CycleHopper_0x”添加到@nat_weight，这部分我能够完成。现在@nat_weight = 1871。

现在我想将@nat_weight和UPDATE的值分配给“HPR_x_PRCT”，这是我遇到问题的地方，我将这个代码作为目标索引8000，会需要整个表运行。

对于料斗5的操作更新所述E1871分之177= 0.0149

DECLARE @nat_weight INT; 
DECLARE @mattype1 INT; 
DECLARE @mattype2 INT; 
DECLARE @mattype3 INT; 
-- get material type, need only hoppers 1-3, hopper 4,5,6 material type will never = 2 
SET @mattype1 = (SELECT typehopper_01 FROM mm_Cycle_Data WHERE me38_cycle_data_ndx=8000); 
SET @mattype2 = (SELECT typehopper_02 FROM mm_Cycle_Data WHERE me38_cycle_data_ndx=8000); 
SET @mattype3 = (SELECT typehopper_03 FROM mm_Cycle_Data WHERE me38_cycle_data_ndx=8000); 
-- if material type=2 then add to @nat_weight , 
IF @mattype1 = 2 
    set @nat_weight = (SELECT cyclehopper_01 FROM mm_Cycle_Data WHERE me38_cycle_data_ndx=8000); 

IF @mattype2 = 2 
    set @nat_weight =@nat_weight+ (SELECT cyclehopper_01 FROM mm_Cycle_Data WHERE me38_cycle_data_ndx=8000); 

IF @mattype3 = 2 
    set @nat_weight =@nat_weight+ (SELECT cyclehopper_03 FROM mm_Cycle_Data WHERE me38_cycle_data_ndx=8000) 


UPDATE mm_Cycle_Data 
Set HPR_1_PRCT =CycleHopper_01/@nat_weight, --my error might be here 
    HPR_2_PRCT =CycleHopper_02/@nat_weight, 
    HPR_3_PRCT =CycleHopper_03/@nat_weight, 
    HPR_4_PRCT =CycleHopper_04/@nat_weight, 
    HPR_5_PRCT =CycleHopper_05/@nat_weight 
WHERE me38_cycle_data_ndx=8000 

me38_cycle_data_ndx Cycle  SettingHopper_01  SettingHopper_02  SettingHopper_03  SettingHopper_04  SettingHopper_05  SettingHopper_06  CycleHopper_01 CycleHopper_02 CycleHopper_03 CycleHopper_04 CycleHopper_05 CycleHopper_06 TotalHopper_01 TotalHopper_02 TotalHopper_03 TotalHopper_04 TotalHopper_05 TotalHopper_06 TypeHopper_01 TypeHopper_02 TypeHopper_03 TypeHopper_04 TypeHopper_05 TypeHopper_06 Get_Address t_stamp     HPR_6_PRCT    HPR_3_PRCT    HPR_6_ErrPrct   HPR_3_ErrPrct   HPR_4_ErrPrct   HPR_5_ErrPrct   HPR_2_ErrPrct   HPR_2_PRCT    HPR_5_PRCT    HPR_4_PRCT    HPR_1_ErrPrct   HPR_1_PRCT    CurrentWorkingShift 
------------------- ----------- ---------------------- ---------------------- ---------------------- ---------------------- ---------------------- ---------------------- -------------- -------------- -------------- -------------- -------------- -------------- -------------- -------------- -------------- -------------- -------------- -------------- ------------- ------------- ------------- ------------- ------------- ------------- ----------- ----------------------- ---------------------- ---------------------- ---------------------- ---------------------- ---------------------- ---------------------- ---------------------- ---------------------- ---------------------- ---------------------- ---------------------- ---------------------- ------------------- 
8000    61820  100     0      0      0      1.39999997615814  0      11871   0    0    0    177   0    274443072  2059773259  0    0    5744198  23988001  2    1    0    0    3    3    50   2015-10-06 15:16:37.267 0      0      0      0      0      -28.5714282989502  0      0      0      0      0      1      2 
7999    939   100     10      1.5     0      0      0      21375   2181   334   0    0    0    7115425  388436   107363   0    0    0    2    1    3    0    3    0    38   2015-10-06 15:16:16.043 0      1.53800475597382  0      2.53365039825439  0      0      -4.2374324798584  9.84164714813232  0      0      0      100     2 
7998    413   0      100     0      0      0      0      0    7962   0    0    0    0    0    3407112  0    0    0    0    1    2    3    0    0    0    39   2015-10-06 15:13:35.420 0      0      0      0      0      0      0      100     0      0      0      0      2 
7997    61818  100     0      0      0      1.39999997615814  0      11836   0    0    0    175   0    274431201  2059773259  0    0    5744021  23988001  2    1    0    0    3    3    50   2015-10-06 15:13:03.387 0      1.51998627185822  0      0      0      -28.5714282989502  0      0      1      0      0      100     2 

Answer 1

需与每一个值转换为FLOAT类型
集HPR_1_PRCT = CAST（CycleHopper_01 AS FLOAT）/ CAST（@nat_weight AS FLOAT），