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Access database connections limit

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WebWiz-Bruce View Drop Down
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    Posted: 25 May 2004 at 5:51am
I've had an email sent to me with the following:-

Quote The Microsoft drivers provided currenly for Access only allow 64 concurrent connections on a per-server basis, as such, you can experience timeout problems in your script if you are on a shared server with other customers who use Access heavily also, as the server will be sharing the 64 connections as a whole.


I've always been lead to believe from what I have read on MSDN that Access can handle 255 simultanious connections per database.

Can anyone confrim that the above is correct?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote zaboss Quote  Post ReplyReply Direct Link To This Post Posted: 25 May 2004 at 6:00am

Definitively wrong. There is no way it could be 64 conections per server.

Any regular server host hundreds of site, be it even 100, but most are somewhere arround 300. Should each of them use an Access db, and even if each site has only one visitor, there are many chances that you'dd have 100 visitors on the server at a given time, which makes impossible to connect according to what you say, which obviously is not true.

Cristian Banu
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dpyers Quote  Post ReplyReply Direct Link To This Post Posted: 25 May 2004 at 1:30pm

-Borg- Don't know what context the statement was made it, but they may be talking about connections through an Access/Jet application on a LAN, which, I believe, are less than 255.

Term "connections" is misleading. I't doesn't mean what zaboss thinks it does. A concurrent connection can be thought of as a specific low-level data base activity - e.g. a read, a write - not as the connection you open in your script to a db.

MSDE (SQL200 Desktop) for example supports 5 concurrent connections. Which means it can support a couple of hundred users. Because of the way MS SQL2000 handles it's low-level activity compared to Access's Jet DB Engine, you can support more users with MSDE's 5 connections than with Jet's 64/255.


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