允许重复的查询搜索

Question

这是我拥有的当前表。

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 

，我有当前查询是

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，当我的条件进行搜索：

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

我得到的

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

我的结果希望用户也能够输入

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

并得到相同的结果。我能做些什么来改变查询来实现这一点？如果我键入值两次，它会锁定表格。

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

如果我理解正确的话，你希望用户输入2点的值，并返回有金1和金属2等于这两个值的记录，但用户可以按任何顺序输入值（即进入金1然后金属2或者输入Metal2，然后输入Metal1）。

如果是这样的话，那么这就是你想要的查询。

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