Hi guys,
Thanks to a lot of luck and help from you great people, I am on the verge of completing my first Database/Application.
but at the moment the Jet Engine back end is not able to handle the load
here are some specs re my database:
Back End: Access -> Jet Engine
Front Ends: Access -> Jet Engine
usually not more than 2 users accessing the database and the back end is stored on one of the users computers which is quite a new computer.
Here are some structural mistakes I believe that could be causing the problem:
1. Whenever I add a new record, I use ADO to connect to an entire table as a recordset, I would think that would be putting unnecessary load on the Jet back end, what is the most streamlined way to add a new record to a recordset.
2. I have external query objects (in the front ends), will external query objects put more load on my front end then SQL strings in VBA would?
Thank You Very Much
4  1790   dima69 181
Recognized Expert New Member
Hi guys,
Thanks to a lot of luck and help from you great people, I am on the verge of completing my first Database/Application.
but at the moment the Jet Engine back end is not able to handle the load
here are some specs re my database:
Back End: Access -> Jet Engine
Front Ends: Access -> Jet Engine
usually not more than 2 users accessing the database and the back end is stored on one of the users computers which is quite a new computer.
Here are some structural mistakes I believe that could be causing the problem:
1. Whenever I add a new record, I use ADO to connect to an entire table as a recordset, I would think that would be putting unnecessary load on the Jet back end, what is the most streamlined way to add a new record to a recordset.
2. I have external query objects (in the front ends), will external query objects put more load on my front end then SQL strings in VBA would?
Thank You Very Much
I am not sure what the problem is, however I think you do take one thing wrong.
Access database Back End never uses Jet Engine or anything else - it's just a file server. All data is processed at the Front End. So when you have a big table and you run a query to select a few records, the whole table must be transfered to the Front End anyway.
NeoPa 32,572
Recognized Expert Moderator MVP - Opening a table will generally not load all the data. This is a non-issue. Let Access handle it.
- If you mean QueryDefs in your front end, then it's actually better to use them than a VBA SQL string. The former are 'optimised' on first use. A SQL string needs to have optimisation guesses done every time it's run. The Jet Engine will work quite happily on the Back End database.
PS. I don't like to contradict other Experts (so apologies for that Dima) but I think I'm right on this occasion. I would be happy to be proved wrong if there's something I need to learn. I may ask some other Experts to have a look in to check.
NeoPa 32,572
Recognized Expert Moderator MVP
The Back End Access DB & Jet Engine discussion is continuing, but not in here please.
This thread is now dedicated only to the original topic.
 Denburt 1,356
Recognized Expert Top Contributor
Hi guys,
Thanks to a lot of luck and help from you great people, I am on the verge of completing my first Database/Application.
but at the moment the Jet Engine back end is not able to handle the load
here are some specs re my database:
Back End: Access -> Jet Engine
Front Ends: Access -> Jet Engine
usually not more than 2 users accessing the database and the back end is stored on one of the users computers which is quite a new computer.
Here are some structural mistakes I believe that could be causing the problem:
1. Whenever I add a new record, I use ADO to connect to an entire table as a recordset, I would think that would be putting unnecessary load on the Jet back end, what is the most streamlined way to add a new record to a recordset.
2. I have external query objects (in the front ends), will external query objects put more load on my front end then SQL strings in VBA would?
Thank You Very Much
I think the guys got a little off the beaten path here (no offense).
1. noneed to use a an ado recordset when a simple insert statement or an append query would do the job. This would be much more efficient for adding a record to a table. This would also lead us to question 2.
2. Very good question, I would think a saved query would be the best bet for most circumstances, although this is something I would prefer to back up with documentation or a test with some Extremely large additions.
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