Question

这是我当前的表格。

WeldingProcedure  
ID        TYPE     Metal1        Metal2      ThicknessMin       ThicknessMax
50-1      SMAW       1             2              1                  2
50-2      SAW        2             2              3                  5
51-3      FCAW       3             2              2                  6
52-1      SMAW       1             2             0.5                 2

我当前的查询是

SELECT *
FROM WeldingProcedure as WPS
WHERE WPS.[Metal#(P-No)]=Forms!MatchSearch_form!metal1  
And WPS.[Metal#2(P-No)]=Forms!MatchSearch_form!metal2   
And WPS.ThicknessMin<=Forms!MatchSearch_form!thickness
And WPS.ThicknessMax>=Forms!MatchSearch_form!thickness
And WPS.[Welding _Type]=Forms!MatchSearch_form!weldingtype

所以当我使用以下标准搜索时：

Type = SMAW  
Metal1 = 1
Metal2 = 2
Thickness = 1.5

我得到

的结果

ID        TYPE     Metal1        Metal2      ThicknessMin      ThicknessMax
50-1      SMAW       1             2              1                  2
52-1      SMAW       1             2             0.5                 2

我希望用户也可以键入

Type = SMAW  
Metal1 = 2
Metal2 = 1
Thickness = 1.5

得到相同的结果。我该怎么做才能更改查询以实现这一目标？如果我将值键入两次，它会对表格进行整理。

Answer 1

SELECT  *
FROM    WeldingProcedure as WPS
WHERE   ((WPS.[Metal#(P-No)] = Forms!MatchSearch_form!metal1 AND WPS.[Metal#2(P-No)] = Forms!MatchSearch_form!metal2) OR (WPS.[Metal#(P-No)] = Forms!MatchSearch_form!metal2 AND WPS.[Metal#2(P-No)] = Forms!MatchSearch_form!metal1))
        AND WPS.ThicknessMin<=Forms!MatchSearch_form!thickness
        AND WPS.ThicknessMax>=Forms!MatchSearch_form!thickness
        AND WPS.[Welding _Type]=Forms!MatchSearch_form!weldingtype

Answer 2

如果我理解正确，您希望用户输入2个值并返回Metal1和Metal2等于这两个值的记录，但用户可以按任意顺序输入值（即输入Metal1然后输入Metal2或输入Metal2然后金属1）。

如果是这种情况，那么这就是您想要的查询。

SELECT *
FROM WeldingProcedure as WPS
WHERE 
(
    (WPS.[Metal#(P-No)]=Forms!MatchSearch_form!metal1 And WPS.[Metal#2(P-No)]=Forms!MatchSearch_form!metal2)
    OR
    (WPS.[Metal#(P-No)]=Forms!MatchSearch_form!metal2 And WPS.[Metal#2(P-No)]=Forms!MatchSearch_form!metal1)
)
And WPS.ThicknessMin<=Forms!MatchSearch_form!thickness
And WPS.ThicknessMax>=Forms!MatchSearch_form!thickness
And WPS.[Welding _Type]=Forms!MatchSearch_form!weldingtype

允许双重搜索的查询

2 个答案: