I use Access 03 and I am trying to update field tblTo.strAdd based on the values of tblFrom.str1 and tblTo.str1, with a single SQL statement

Assume tblFrom.str1 has only one record where string field
tblFrom.str1 = 456

tblTo.str1 has string fields 456234, 456789, 4522, 458, 456 with
tblTo.strAdd being blank in every case.

I would like to use a single SQL statement to update tblTo.strAdd with
the value 456 for all tblTo.str1 that BEGIN WITH 456, in this case we
will update the 3 records where tblTo.str1 is 456234, 456789, 456

I tried using something like the following in the WHERE of an UPDATE
but with no success

(tblTo.str1 LIKE ' " & strValue & "%' )
where strValue = "456"

The above is ADO. For DAO I would use * instead of %

Any ideas?

is the space after the LIKE ' a typo?
' 456%' isn't the same as '456%'
in fact it looks like your punctuation id up the swanny

Id try something like:-
update tblto set stradd = strvalue where str1 like left(strvalue,3)

healdem, many thanks.

I managed to get it working, I used

(LEFT(tblTo.strAC," & lngDigitNum & ") = '" & strACValue & "') "
where strACValue = tblFrom.strAC

Doing it the vba way it took more than 6 minutes. Using SQL it takes an acceptable 15 seconds.