Re: [MS_AccessPros] New (Blank) Record button disabled

 

Khalid-

Your tables appear to be related like this:

CST Transaction  <===  Members  ===>  tblPassport

A query on those three tables will produce the Cartesian product of rows in CST Transaction and rows in tblPassport for each Member.  So for example, if a Member has 5 transactions and 3 passports, you'll get 15 rows for that Member.

That's not updatable - which would explain why you can't add a row.

John Viescas, Author

Effective SQL

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http://www.viescas.com/ 

(Paris, France)

On Jul 22, 2017, at 11:36 AM, khalidtanweerburrah@yahoo.com [MS_Access_Professionals] <MS_Access_Professionals@yahoogroups.com> wrote:

Hi all,

I have a form "CST Participants Entry" having sub form "Data Entry CST Account Sub Form" its Record Source is query "CST Transaction Data Entry Query" having Sql:

SELECT DISTINCTROW [CST Transaction].MemberID, Members.MembershipType, Members.SurName, Members.GivenName, Members.GenderStatus, [CST Transaction].CstName, [CST Transaction].OutwardDate, [CST Transaction].OutwardDeparturePort, [CST Transaction].OutwardArrivalPort, [CST Transaction].InwardDate, [CST Transaction].InwardDeparturePort, [CST Transaction].InwardArrivalPort, Members.Working

FROM Members INNER JOIN [CST Transaction] ON Members.MemberID = [CST Transaction].MemberID

WHERE (((Members.Working)=True))

ORDER BY [CST Transaction].MemberID;

Up to here all is OK i am able to add  a new record and new record button is enabled.

The problem occurs when i try to include table "tblPassport" and its field "PassportNo" in above query, then the Sql becomes:

SELECT DISTINCTROW [CST Transaction].MemberID, Members.MembershipType, Members.SurName, Members.GivenName, Members.GenderStatus, tblPassport.PassportNo, [CST Transaction].CstName, [CST Transaction].OutwardDate, [CST Transaction].OutwardDeparturePort, [CST Transaction].OutwardArrivalPort, [CST Transaction].InwardDate, [CST Transaction].InwardDeparturePort, [CST Transaction].InwardArrivalPort, Members.Working

FROM (Members INNER JOIN [CST Transaction] ON Members.MemberID = [CST Transaction].MemberID) INNER JOIN tblPassport ON Members.MemberID = tblPassport.MemberID

WHERE (((Members.Working)=True))

ORDER BY [CST Transaction].MemberID;

In this situation i am unable to add new record. Help required please.

Regards,

Khalid

 

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Posted by: John Viescas <johnv@msn.com>

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