Don Elliker
delliker at hotmail.com
Thu Aug 28 14:37:51 CDT 2003
Nevermind....engage brain. The code I snipped for the autonumber thingie was
closing my workspace.
So, as usual, the machine was exactly and perfectly correct. Pictures at
11:00.
_d
"Things are only free to the extent that you don't pay for them".-Don
Elliker
>From: "Don Elliker" <delliker at hotmail.com>
>Reply-To: Access Developers discussion and problem
>solving<accessd at databaseadvisors.com>
>To: accessd at databaseadvisors.com
>Subject: [AccessD] Custom autonumbers and error 3420
>Date: Thu, 28 Aug 2003 14:41:55 -0400
>
>
>I have removed the autonumber PK from all my tables, replacing it with a
>Long. Everything seems to work except for the fact that after any operation
>involving the BE database I lose my connection to it and receive a 3420
>'Object invalid or no longer set' error. This error is generated on the
>next reference to the BE (database object)
>
>The BE database is opened and connected on startup and the connection stays
>open for the duration (or it used to). The only change ,so far, is to the
>Autonumber PK and the 'before_insert' event logic to populate the Long with
>the next autonumber from a separate Autonumber Database (value retrieved is
>also a long).
>
>Thoughts?
>
>TIA,
>_D
>
>
>"Things are only free to the extent that you don't pay for them".-Don
>Elliker
>
>
>
>
>
>>From: "Heenan, Lambert" <Lambert.Heenan at aig.com>
>>Reply-To: Access Developers discussion and problem
>>solving<accessd at databaseadvisors.com>
>>To: "'Access Developers discussion and problem solving'"
>><accessd at databaseadvisors.com>
>>Subject: RE: [AccessD] Custom autonumbers and replication
>>Date: Mon, 25 Aug 2003 16:50:51 -0400
>>
>>Does sound a bit like a catch 22.
>>
>>Why do you say that you cannot use prefixes? If you could it would make
>>like
>>fairly simple.
>>
>>Suggestion.
>>
>>Each replica should have it's own table of table AutoNumbers, with one
>>record holding the prefix to be used with that replica.
>>
>>The AutoNumber allocation routine would call
>>
>>
>>Dmax("HandRolledAutoNumberField,"TableName","Left(HandRolledAutoNumberField,
>>Len(ReplicaPrefix))='" & ReplicaPrefix & "'")
>>
>>to find the current highest AutoNumber value.
>>
>>Then strip off the prefix, increment the remaining number and tack on the
>>prefix again.
>>
>>Should work. (FLW)
>>
>>
>>Lambert
>>
>>
>> > -----Original Message-----
>> > From: Don Elliker [SMTP:delliker at hotmail.com]
>> > Sent: Monday, August 25, 2003 2:28 PM
>> > To: accessd at databaseadvisors.com
>> > Subject: [AccessD] Custom autonumbers and replication
>> >
>> > The ADH has a bit on using a custom autonumber in place of Autonumber
>> > which
>> > I want to use for tables involved in replication. What I don't get is,
>>if
>> > the replication scheme does not include the database where the new
>> > autonumbers are kept (The idea is to have tables stored in a separate
>> > database wherin only the next autonumber is manipulated for each table.
>> > The
>> > requesting function calls with the table name, locks it , gets the
>>'next'
>> > value, increments by 1 and frees up the table for the next user.) so
>>OK,
>> > swell, sounds good..but , if these 'autonumber' tables reside in a
>> > database
>> > not in the Replication scheme....what is the benefit? How will I
>>connect
>> > to
>> > it? From each database separately to the common autonumber
>> > database?........I think I must be missing something. I have used
>> > replication before , but never with this kind of a key (autonumber or a
>> > single field, unique number)
>> > -As an added bonus,I cannot use prefix/ identifiers like TED001 for
>>Ted's
>> > stuff , etc. I don't know if I can seed the individual master tables
>> > (which
>> > get the majority of the updates) with a value sufficiently distant from
>> > one
>> > another, or ,have them increment in odds or evens...(going nuts now)
>> >
>> > Any Replication smarties out there???
>> >
>> >
>> > "Things are only free to the extent that you don't pay for them".-Don
>> > Elliker
>> >
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