允許重複的查詢搜索

Question

這是我擁有的當前表。

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 

，我有當前查詢是

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，當我的條件進行搜索：

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 

我的結果希望用戶也能夠輸入

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

並得到相同的結果。我能做些什麼來改變查詢來實現這一點？如果我鍵入值兩次，它會鎖定表格。

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

如果我理解正確的話，你希望用戶輸入2點的值，並返回有金1和金屬2等於這兩個值的記錄，但用戶可以按任何順序輸入值（即進入金1然後金屬2或者輸入Metal2，然後輸入Metal1）。

如果是這樣的話，那麼這就是你想要的查詢。

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