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Convert string value to numeric value



 
 
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  #1  
Old May 25th, 2010, 10:37 PM posted to microsoft.public.access.queries
alhotch
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Posts: 58
Default Convert string value to numeric value

I saw a post that showed how to convert from a number value to a string
value. But how about the other way ? Convert a string value to a number value.

Example, fieldA contains the text value "YES". fieldB is to contain the
numberic value of "1". How would one create a query that would accomplish
this task ?

"YES" would put the number one (1) in fieldB and "NO" would put the value of
two (2) in fieldB.
  #2  
Old May 25th, 2010, 11:10 PM posted to microsoft.public.access.queries
alhotch
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Posts: 58
Default Convert string value to numeric value

Check that. I figured it out.

IIF[fieldA]="YES","1", IIF[fieldB]="NO","2",Null

This places the number one (1) in the "appended" field YesNo or the number
two (2) in the same field, depending on the values of fieldA or fieldB.

"alhotch" wrote:

I saw a post that showed how to convert from a number value to a string
value. But how about the other way ? Convert a string value to a number value.

Example, fieldA contains the text value "YES". fieldB is to contain the
numberic value of "1". How would one create a query that would accomplish
this task ?

"YES" would put the number one (1) in fieldB and "NO" would put the value of
two (2) in fieldB.

  #3  
Old May 25th, 2010, 11:59 PM posted to microsoft.public.access.queries
Jeff Boyce
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Posts: 8,621
Default Convert string value to numeric value

As written, your IFF() statement checks two different fields for values, not
one.

And by the way, if you already have a "YES", why do you (also) need a "1"?
You wouldn't need to store that "calculated value", you could just use a
(corrected) IIF() expression to calculate a "1" or a "2" on the fly...

Regards

Jeff Boyce
Microsoft Access MVP

--
Disclaimer: This author may have received products and services mentioned
in this post. Mention and/or description of a product or service herein
does not constitute endorsement thereof.

Any code or pseudocode included in this post is offered "as is", with no
guarantee as to suitability.

You can thank the FTC of the USA for making this disclaimer
possible/necessary.

"alhotch" wrote in message
...
Check that. I figured it out.

IIF[fieldA]="YES","1", IIF[fieldB]="NO","2",Null

This places the number one (1) in the "appended" field YesNo or the number
two (2) in the same field, depending on the values of fieldA or fieldB.

"alhotch" wrote:

I saw a post that showed how to convert from a number value to a string
value. But how about the other way ? Convert a string value to a number
value.

Example, fieldA contains the text value "YES". fieldB is to contain the
numberic value of "1". How would one create a query that would accomplish
this task ?

"YES" would put the number one (1) in fieldB and "NO" would put the value
of
two (2) in fieldB.



  #4  
Old May 26th, 2010, 01:47 PM posted to microsoft.public.access.queries
John Spencer
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Posts: 7,815
Default Convert string value to numeric value

Do you want a number or a text string that consists of numbers?
IIF(FieldA="Yes",1,IIF(FieldA="No",2,Null))

As noted elsewhere, your expression does something different than the text
description you posted.

John Spencer
Access MVP 2002-2005, 2007-2010
The Hilltop Institute
University of Maryland Baltimore County

alhotch wrote:
Check that. I figured it out.

IIF[fieldA]="YES","1", IIF[fieldB]="NO","2",Null

This places the number one (1) in the "appended" field YesNo or the number
two (2) in the same field, depending on the values of fieldA or fieldB.

"alhotch" wrote:

I saw a post that showed how to convert from a number value to a string
value. But how about the other way ? Convert a string value to a number value.

Example, fieldA contains the text value "YES". fieldB is to contain the
numberic value of "1". How would one create a query that would accomplish
this task ?

"YES" would put the number one (1) in fieldB and "NO" would put the value of
two (2) in fieldB.

 




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