Having trouble with complex query: Please Help!

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HardWorkDude

So I have one master table with different products in it, each grouped by
category. Moreover, for one of the categories of products, there is a field
to enter a number range. For example, 10-50, 100-300; 30-400, just a simple
number range. Obviously, the field cannot be a number field because it
contains a hyphen. Anyway, what I am trying to do is create a query that
further groups these products by the number range. I have 3 categories of
ranges, products that are smaller than 300, (<300), products that are larger
than 300 and smaller than 600 (>300 and <600), and products that are larger
than 600 (>600). So if the product in the main table has a range of 100-200,
for example, it would be grouped in the "<300" category, that is, because the
larger of the numbers, 200, is smaller than 300. So what I did was create an
expression in the query that extracts the number after the hyphen ("-").
However, in the master table, there are some products that are entered in the
database that do not yet have values assigned, so they come up as ERROR in
the query. So to take care of this problem I first created a query in which I
specify to only return results where for that field, the value is Not Null,
so that it ignores ones where the field is empty. Next, I created a query
based on this query where I add the expression that takes the number after
the hyphen, and the query still looks fine. It would look like: PRODUCT,
Expr1: CInt(Mid([FieldName],InStr([FieldName],"-")+1))

Like I said, the expression takes the higher number from the number range in
the field for each product, the number to the right of the "-". Also, I added
the CInt to be sure that it converts it to a number, even though it is
already one. But once I write in the Criteria <"300", it says "Data type
mismatch in criteria expression" and I do not understand why, I have been
trying it a million different ways and it always says that error message. I
even tried creating a third query from this, and it still says it. What can I
do? I hope this makes sense. THANKS!
 
Did you try without the quote marks?

Since you forced the value to be an integer CInt then you should be
testing for a number as in
<300

'====================================================
John Spencer
Access MVP 2002-2005, 2007-2009
The Hilltop Institute
University of Maryland Baltimore County
'====================================================
 
I tried that, and it still says "Data type mismatch in criteria expression.
In Field it says:

Expr1: CInt(Mid([MFieldName],InStr([MyFieldName],"-")+1))

and I typed in <300 for criteria. I don't understand for the life of me
what's wrong.


John Spencer said:
Did you try without the quote marks?

Since you forced the value to be an integer CInt then you should be
testing for a number as in
<300

'====================================================
John Spencer
Access MVP 2002-2005, 2007-2009
The Hilltop Institute
University of Maryland Baltimore County
'====================================================

So I have one master table with different products in it, each grouped by
category. Moreover, for one of the categories of products, there is a field
to enter a number range. For example, 10-50, 100-300; 30-400, just a simple
number range. Obviously, the field cannot be a number field because it
contains a hyphen. Anyway, what I am trying to do is create a query that
further groups these products by the number range. I have 3 categories of
ranges, products that are smaller than 300, (<300), products that are larger
than 300 and smaller than 600 (>300 and <600), and products that are larger
than 600 (>600). So if the product in the main table has a range of 100-200,
for example, it would be grouped in the "<300" category, that is, because the
larger of the numbers, 200, is smaller than 300. So what I did was create an
expression in the query that extracts the number after the hyphen ("-").
However, in the master table, there are some products that are entered in the
database that do not yet have values assigned, so they come up as ERROR in
the query. So to take care of this problem I first created a query in which I
specify to only return results where for that field, the value is Not Null,
so that it ignores ones where the field is empty. Next, I created a query
based on this query where I add the expression that takes the number after
the hyphen, and the query still looks fine. It would look like: PRODUCT,
Expr1: CInt(Mid([FieldName],InStr([FieldName],"-")+1))

Like I said, the expression takes the higher number from the number range in
the field for each product, the number to the right of the "-". Also, I added
the CInt to be sure that it converts it to a number, even though it is
already one. But once I write in the Criteria <"300", it says "Data type
mismatch in criteria expression" and I do not understand why, I have been
trying it a million different ways and it always says that error message. I
even tried creating a third query from this, and it still says it. What can I
do? I hope this makes sense. THANKS!
 
If MFieldName is Null or contains a value that cannot be interpreted as an
integer or contains a value that is too large for an integer value you will
get an error someplace in the query.

If you are using this in the where clause (applying criteria against the
field) that error in any record in the table will cause the query to fail.

You might try testing to see if the result of your expression can be
interpreted as a number and if so return the result of the expression; if not,
return null or zero.

IIF(IsNumeric(Mid([MFieldName],InStr([MyFieldName],"-")+1)),
CInt(Mid([MFieldName],InStr([MyFieldName],"-")+1)), Null)

John Spencer
Access MVP 2002-2005, 2007-2009
The Hilltop Institute
University of Maryland Baltimore County
I tried that, and it still says "Data type mismatch in criteria expression.
In Field it says:

Expr1: CInt(Mid([MFieldName],InStr([MyFieldName],"-")+1))

and I typed in <300 for criteria. I don't understand for the life of me
what's wrong.


John Spencer said:
Did you try without the quote marks?

Since you forced the value to be an integer CInt then you should be
testing for a number as in
<300

'====================================================
John Spencer
Access MVP 2002-2005, 2007-2009
The Hilltop Institute
University of Maryland Baltimore County
'====================================================

So I have one master table with different products in it, each grouped by
category. Moreover, for one of the categories of products, there is a field
to enter a number range. For example, 10-50, 100-300; 30-400, just a simple
number range. Obviously, the field cannot be a number field because it
contains a hyphen. Anyway, what I am trying to do is create a query that
further groups these products by the number range. I have 3 categories of
ranges, products that are smaller than 300, (<300), products that are larger
than 300 and smaller than 600 (>300 and <600), and products that are larger
than 600 (>600). So if the product in the main table has a range of 100-200,
for example, it would be grouped in the "<300" category, that is, because the
larger of the numbers, 200, is smaller than 300. So what I did was create an
expression in the query that extracts the number after the hyphen ("-").
However, in the master table, there are some products that are entered in the
database that do not yet have values assigned, so they come up as ERROR in
the query. So to take care of this problem I first created a query in which I
specify to only return results where for that field, the value is Not Null,
so that it ignores ones where the field is empty. Next, I created a query
based on this query where I add the expression that takes the number after
the hyphen, and the query still looks fine. It would look like: PRODUCT,
Expr1: CInt(Mid([FieldName],InStr([FieldName],"-")+1))

Like I said, the expression takes the higher number from the number range in
the field for each product, the number to the right of the "-". Also, I added
the CInt to be sure that it converts it to a number, even though it is
already one. But once I write in the Criteria <"300", it says "Data type
mismatch in criteria expression" and I do not understand why, I have been
trying it a million different ways and it always says that error message. I
even tried creating a third query from this, and it still says it. What can I
do? I hope this makes sense. THANKS!
 
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