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prepurchase DBISAM C/S Version Questions |
Thu, Apr 11 2013 4:48 PM | Permanent Link |
Brent Shelton | I have questions about upgrading to the C/S version of DBISAM before I upgrade to it:
1. Is it ok if one user has his client set to local and another client has their client set to remote and they are accessing the same data tables? 2. I currently have 4.30 Build 7 with Source using Delphi 7 Pro. Some of my users call about missing "secondary index" errors. I think it might be caused by their network setup using wifi to connect to the database. Do you think using a C/S set up would prevent this since all of the work would be happening on one system? Thanks, Wayne |
Thu, Apr 11 2013 6:27 PM | Permanent Link |
Raul Team Elevate | On 4/11/2013 4:48 PM, Wayne Delph wrote:
> 1. Is it ok if one user has his client set to local and another client has their client set to remote > and they are accessing the same data tables? Yes. If you are licensed for any version of DBISAM you get the 5-user dbsrvr so you can try it out yourself before purchase to make sure everything works OK. > 2. I currently have 4.30 Build 7 with Source using Delphi 7 Pro. Some of my users call about missing "secondary index" errors. I think it might be caused by their network setup using wifi to connect to the database. Do you think using a C/S set up would prevent this since all of the work would be happening on one system? What is the exact error? You should not be getting those errors even in file sharing mode so i would investigate the source of the errors first. In general yes C/S would work better as it would be the only process accessing the data tables and you would eliminate any file sharing related issues. Raul |
Fri, Apr 12 2013 4:01 AM | Permanent Link |
Roy Lambert NLH Associates Team Elevate | Raul
>> 2. I currently have 4.30 Build 7 with Source using Delphi 7 Pro. Some of my users call about missing "secondary index" errors. I think it might be caused by their network setup using wifi to connect to the database. Do you think using a C/S set up would prevent this since all of the work would be happening on one system? > >What is the exact error? You should not be getting those errors even in >file sharing mode so i would investigate the source of the errors first. Whilst I support your comment I'd suspect the wi-fi connection. It doesn't take much of a drop out before you get trouble in fileshareing mode. >In general yes C/S would work better as it would be the only process >accessing the data tables and you would eliminate any file sharing >related issues. Agreed BUT a bigger faster machine may be needed to provide a reasonable level of experience for the users. So how many users are going to have to be supported? Roy Lambert [Team Elevate] |
Fri, Apr 12 2013 7:56 AM | Permanent Link |
Tim Young [Elevate Software] Elevate Software, Inc. timyoung@elevatesoft.com | Wayne,
<< 1. Is it ok if one user has his client set to local and another client has their client set to remote and they are accessing the same data tables? >> Yes. However, I would only recommend allowing direct access to the database tables to processes executing on the server machine. If you allow direct network file access, then you're eliminating one of the benefits of using the DBISAM Database Server since it only takes one such client to go down during a write to end up corrupting one or more tables. << 2. I currently have 4.30 Build 7 with Source using Delphi 7 Pro. Some of my users call about missing "secondary index" errors. I think it might be caused by their network setup using wifi to connect to the database. Do you think using a C/S set up would prevent this since all of the work would be happening on one system? >> Yes, absolutely. If a connection gets dropped with a remote session, the DBISAM Database Server will just keep doing what it was last doing for the client until it is done, and then will clean up the session in an orderly fashion if the client's remote session doesn't reconnect within a certain time period (configurable). If you have any other questions, please let me know. Tim Young Elevate Software www.elevatesoft.com |
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