Re: A2007 ADPs

The only objective of ADP was to have the capability to directly bind a
passthrough query to a form and have it read/write instead of read only, as
it is actually the case with MDB.

With MDB against a sql-server, you have to use a passthrough query when your
design become too complicated or to slow but these queries are read-only and
cannot be binded directly to a form/report. ADP was developed to correct
this deficiency but beside this point, they have done absolutely nothing
beyond that. For example, it's impossible to manipulate your insertings,
updatings and deletings using stored procedures or to control the refreshing
of the current record with anything but a primary key. I won't pass any
comment on all the other limitations.

From the point of view of a programmer working against a SQL-Server, ADP is
incredibly limited and offers nothing more than the possibility of directly
reading the result of a SP into a bound form; nothing else. In comparaison
to other database interface tools, MDB and ADP are more like twins than
anything else.

(Of course, I talking here about the use of bound forms and not about the
direct manipulation of ADO objects with VBA code; because you can do the
later as easily with MDB than with ADP or with any other VBScript compatible
language like ASP.).

--
Sylvain Lafontaine, ing.
MVP - Technologies Virtual-PC
E-mail: sylvain aei ca (fill the blanks, no spam please)


"David W. Fenton" <XXXusenet@xxxxxxxxxxxxxxxxxxx> wrote in message
news:Xns994D92A168426f99a49ed1d0c49c5bbb2@xxxxxxxxxxxx
"Sylvain Lafontaine" <sylvain aei ca (fill the blanks, no spam
please)> wrote in news:#Bc78dLrHHA.4624@xxxxxxxxxxxxxxxxxxxx:

ADP has been cancelled because it offers no real advantage over
MDB file but this conclusion is not based on performance but on
functionality. The capabilities of ADP are so closely related to
MDB that if you cannot do it with MDB, chances are high that you
cannot do it with ADP either.

I always felt that one of the chief motivations for creating the ADP
was the unreasonable prejudice among many outside the Access
community against Jet, either as data store or as data interface to
server back ends.

--
David W. Fenton http://www.dfenton.com/
usenet at dfenton dot com http://www.dfenton.com/DFA/


.

Relevant Pages

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