[mso] Re: Access 2002 Doesn't Link Null Data

What is the recordsource for the existing query?  Is there a primary key 
for an ID in the master table?  I'm not quite clear yet, if you could 
provide a little more info on the master data table structure it would be 
helpful.  Are the links in this new query one to one or one to many?  I 
was taught to build my queries from left to right, placing the master 
table with ALL the records on the left, then placing the other 
tables/queries to the right in the grid, so I can easily see where the 
flow is, and I usually have a one to many from the master table to the 
other table/queries so I will not miss any records, even if there are 
nulls in the linked fields.  However, that applies if the nulls are in the 
many side of the link.  Thanks, Cathy



Ray Shapp <ras45@xxxxxxxxxxxxx>
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11/15/2007 06:13 PM
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[mso] Access 2002 Doesn't Link Null Data





To All,

A query in Access 2002 is not selecting all relevant records because some 
records have no data in one of the linked fields.

I am building a new query using an existing query and a master data table. 
The 
existing query (called Active Members) does correctly select all the 
records 
from the master table for people who are still active members of our club. 
The 
new query should select a subset of active members who have expressed an 
interest in a particular subject. Both the master table and the Active 
Members 
query contain fields for Title, Last_Name, and First_Name. Only the master 

table contains info about the members' interests.

When I build the new query linking Title, Last_Name, and First_Name, a few 

records are not selected because we don't have Title info such as "Mr." or 

"Mrs." for every person. Is there a way link the Active Members query with 
the 
master table for all members who meet the other criteria even if Title 
info is 
blank?

This same problem comes up in those instances where an active member has 
neglected to supply his or her first name. Only ten or a dozen records are 

affected out of a master table containing over a thousand people.

Thank you for your help.

Ray Shapp


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