Thanks for your continuing support,
The data consists of records inherited from many sources up to 30
years old, some in different types of database some in spreadsheets.
I have identified 840 records with the query:
SELECT tMembers.MemberID, tMembers.PhoneAH, Len([PhoneAH]) AS Wdth
FROM tMembers
WHERE (((Len([PhoneAH]))=3))
ORDER BY Len([PhoneAH]);
I have found this reference:
<http://office.microsoft.com/en-us/access-help/update-data-by-using-a-query-HA010076527.aspx>http://office.microsoft.com/en-us/access-help/update-data-by-using-a-query-HA010076527.aspx
but there is no mention of how to update to 'null'. There are many
references for updating a 'null' value to a data field.
Your advice will be appreciated.
Many thanks,
Robin Chapple
At 19/09/2011 02:15 AM, you wrote:
>Where is your data coming from? It should really be cleaned up at
>the source. If you expect either a good Phone or nothing, you could
>run an update query to replace all PhoneAH with null where the len()
>of PHoneAH <=3.
>
>Duane Hookom
>MS Access MVP
>
>
>
>
>To: MS_Access_Professionals@yahoogroups.com
>From: robinski@mymail.net.au
>Date: Sun, 18 Sep 2011 17:18:21 +1000
>Subject: RE: [MS_AccessPros] Confusion with use of "Is Null" and :Nz"
>
>
>
>
>
>
>
>Thanks Douane,
>
>We have a result which I do not understand.
>
>Your 'Result' below is "Result2" in the image at:
>
>http://www.rotary9790.org.au/test/test.asp
>
>The 'Wdth' result which shows "3" I have proven to be three unseen
>characters. I can backspace them out and the result is a nil entry.
>
>How do I lose those with a query?
>
>Many thanks,
>
>Robin Chapple
>
>At 18/09/2011 01:08 PM, you wrote:
>
> >Add this column:
> >Wdth: Len(PhoneAH)
> >You can try
> >Result: IIf(Len(Trim([PhoneAH]))=0,"Unknown",Format([PhoneAH],"@;""ZLS"""))
> >
> >Duane Hookom
> >MS Access MVP
> >
> >Douane,
> >
> > From your remark about "zero-length-string" I have now found some
> >advice on the Microsoft site and added this to my query:
> >
> >Result: IIf(IsNull([PhoneAH]),"Unknown",Format([PhoneAH],"@;""ZLS"""))
> >
> >I have added an image to the page:
> >
> ><http://www.rotary9790.org.au/test/test.asp>http://www.rotary9790.o
> rg.au/test/test.asp
> >
> >
> >and the result is unexpected!
> >
> >Many thanks,
> >
> >Robin Chapple
> >
> >At 18/09/2011 10:42 AM, you wrote:
> >
> > >Robin,
> > >If the PhoneAH is truly null then I think all you need is:
> > >Phonz: [PhoneAH] + " AH"
> > >
> > >Is it possible the field might be a zero-length-string or something
> > >you can't see?
> > >
> > >Duane Hookom
> > >MS Access MVP
> > >
> > >
> > >
> > >
> > >
> > >To: MS_Access_Professionals@yahoogroups.com
> > >From: robinski@mymail.net.au
> > >Date: Sun, 18 Sep 2011 09:28:53 +1000
> > >Subject: [MS_AccessPros] Confusion with use of "Is Null" and :Nz"
> > >
> > >
> > >
> > >
> > >
> > >
> > >I have been advised about the use of Nz but he code to use has
> ben supplied.
> > >
> > >I have not learned!
> > >
> > >This code in a query:
> > >
> > >Phonz: IIf([PhoneAH] Is Null,"",([PhoneAH] & " AH"))
> > >
> > >still gives AH in cases where I have dirty data.
> > >
> > >I Have learned that this is wrong:
> > >
> > >Phonz: IIf([PhoneAH] Is Null,"",(Nz[PhoneAH] & " AH"))
> > >
> > >Where is the correct place to use the Nz?
> > >
> > >Many thanks,
> > >
> > >Robin Chapple
> > >
> > >
> > >
> > >
> > >
> > >
> > >[Non-text portions of this message have been removed]
> > >
> > >
> > >
> > >------------------------------------
> > >
> > >Yahoo! Groups Links
> > >
> > >
> > >
> >
> >
> >
> >
> >
> >
> >[Non-text portions of this message have been removed]
> >
> >
> >
> >------------------------------------
> >
> >Yahoo! Groups Links
> >
> >
> >
>
>
>
>
>
>
>[Non-text portions of this message have been removed]
>
>
>
>------------------------------------
>
>Yahoo! Groups Links
>
>
>
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