How to set the parameter query for this case?

[klim1167 via AccessMonster.com]

Dear all,
I have 2 fields, Eng and Math.
I would like to set the parameter query for Eng and Math ==> Eng min, Eng max,
Math min and Math max.
The Eng query criteria can be "Between Eng min AND Eng max" and the Math
query criteria can be "Between Math min AND Math max".
But...if I would it can be allowed to have "Null entry", how can I set the
Eng and Math query criteria?
Please kindly help me, thanks a lot!!

All combinations will be like...
Eng : Between Eng min AND Eng max, Between Null AND Eng max, Between Eng min
AND Null, Between Null AND Null
Math : Between Math min AND Math max, Between Null AND Math max, Between Math
min AND Null, Between Null AND Null

 

[Marshall Barton]

I have 2 fields, Eng and Math.
I would like to set the parameter query for Eng and Math ==> Eng min, Eng max,
Math min and Math max.
The Eng query criteria can be "Between Eng min AND Eng max" and the Math
query criteria can be "Between Math min AND Math max".
But...if I would it can be allowed to have "Null entry", how can I set the
Eng and Math query criteria?
Please kindly help me, thanks a lot!!

All combinations will be like...
Eng : Between Eng min AND Eng max, Between Null AND Eng max, Between Eng min
AND Null, Between Null AND Null
Math : Between Math min AND Math max, Between Null AND Math max, Between Math
min AND Null, Between Null AND Null

Try using a Where clause like:

WHERE (Eng >= EngMin Or EngMin Is Null) And (Eng <= EngMax
Or EngMax Is Null)

 

[Krzysztof Naworyta]

klim1167 via AccessMonster.com wrote:
| Dear all,
| I have 2 fields, Eng and Math.
| I would like to set the parameter query for Eng and Math ==> Eng min,
| Eng max, Math min and Math max.
| The Eng query criteria can be "Between Eng min AND Eng max" and the
| Math query criteria can be "Between Math min AND Math max".
| But...if I would it can be allowed to have "Null entry", how can I
| set the Eng and Math query criteria?
| Please kindly help me, thanks a lot!!
|
| All combinations will be like...
| Eng : Between Eng min AND Eng max, Between Null AND Eng max, Between
| Eng min AND Null, Between Null AND Null
| Math : Between Math min AND Math max, Between Null AND Math max,
| Between Math min AND Null, Between Null AND Null

(...)
Eng Between Nz([Eng Min],0) and Nz([Eng Max], Eng)
AND
Math Between Nz([Math min],0) and Nz([Math max], 200000000)