Re: basic questions with odbc and visual basic.
От | Greg Campbell |
---|---|
Тема | Re: basic questions with odbc and visual basic. |
Дата | |
Msg-id | 415873C6.9080708@us.michelin.com обсуждение исходный текст |
Ответ на | Re: basic questions with odbc and visual basic. ("Merlin Moncure" <merlin.moncure@rcsonline.com>) |
Список | pgsql-odbc |
Ahh, I see now. Well for reports, which are pretty much read-only as far as data concerned you have lots of freedom. For manipulating the data -- Access works pretty good as long as Access can know which record(s) to update (primary keys or OIDs -- that sort of thing). Merlin Moncure wrote: >>I too almost never use data-aware controls. I use ADO to get the data. >> >> >I > > >>use code to populate a grid. >>When a chnange event is fired, I use code to update the row in >> >> >question. > > >>Why all the work? >> >>Data aware controls tend to be heavy -- they don't know how users are >>going to use them -- so the code in them is not lean or application >>specific. They do code "under the covers" for lowest common >> >> >denominator > > >>in an MS presumed world. So if you are not using Access or SQLServer-- >>they tend to act funny -- in fact I found they act funny when you use >> >> >MS > > >>products. Some people use them with great success -- more RAD power >> >> >to > > >>them. I am old school and follow the axioms of transaction between >>client and server being resource expensive. I tend to code to get just >>the fields and records I need -- and update just the records I want. I >>try not to hold open a whole multi-row recordset, because I want to >>update 1 row. >> >> >>With luck someone else on the mailing list has advice for optimizing >>with data-aware controls. >> >> > >Right. I agree 100%...I think RAD tools make great screen designers and >get you into trouble if you take them beyond that. In fact, I would >never even be looking at VB except I have to train a couple of VB >jockeys from another company on how to access our system so they can >make simple forms and run reports. > >My initial thought was to build views on the server encapsulating the >more complex aspects of the database design for the vb guys to read and >write from. I had hoped that it would be relatively easy to bind these >views to various Microsoft stuff...and it is, but in a slightly more >code intensive way than I had expected. I may try giving the ole db >driver a shot and see if it provides better results. > >Merlin > > > > > > >---------------------------(end of broadcast)--------------------------- >TIP 9: the planner will ignore your desire to choose an index scan if your > joining column's datatypes do not match > >
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