Make your own free website on Tripod.com

InstantDB Project
About InstantDB
Project Mail Lists
Short History
Reporting Bugs
Screen Shots
3rd Party Examples
FAQs

Software
Downloads
Documentation
CVS Repositories
Roadmap
License

About Enhydra.org
Who We Are
News, Articles & Events
Getting Involved
Contact Us

Community
Demos
Contributions
Resources
Case Studies
On The Edge! -NEW-
Commercial Vendors


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: InstantDB: Concurrent access and database integrity


Donan

You have to use the RmiJdbc driver to access InstantDB from multiple virtual
machines.

Have a look at
http://instantdb.enhydra.org/software/documentation/warnings.html for an
explanation of what's going on here.

Regards

Peter Hearty
Lutris Technologies UK Ltd.
-----Original Message-----
From: Donan Nguyen <nguyend3@ttc.com>
To: instantdb@enhydra.org <instantdb@enhydra.org>
Date: 10 May 2000 03:04
Subject: InstantDB: Concurrent access and database integrity


>Greetings,
>
>I'm in the process of evaluating InstantDB and have downloaded and
>tried out both versions, 3.13 and 3.14 beta. Using the sampe.prp
>as my database and a modified version of commsql.java found in
>Examples, I created a table called temp as follows:
>
>    create table temp (name varchar(32))
>
>From here, I started two commsql sessions and carried out the following
>sequence:
>
>1. commsql session 1: <select * from temp>    no records found
>
>2. commsql session 2: <insert into temp values ('joe')>
>
>3. commsql session 2: <commit>
>
>4. commsql session 2: <select * from temp>    the record 'joe' was
>returned
>
>5. commsql session 1: <select * from temp>    no records found
>
>So my question is "Are there parameters I should be configuring to
>enable databas integrity, or is it the case that InstantDB is unable to
>handle concurrent update from different sessions??"
>
>Thanks!
>
>DN
>
>---------------------------------------------------------------------------
--
>To unsubscribe from this mailing list, send email to majordomo@enhydra.org
>with the text "unsubscribe instantdb" in the body of the email.
>If you have other questions regarding this mailing list, send email to
>the list admin at owner-instantdb@enhydra.org.

-----------------------------------------------------------------------------
To unsubscribe from this mailing list, send email to majordomo@enhydra.org
with the text "unsubscribe instantdb" in the body of the email.
If you have other questions regarding this mailing list, send email to
the list admin at owner-instantdb@enhydra.org.