The Rel Forum

I have fixed this in version 0.3.10.

NOTE: Shortly after the release of Rel 0.3.9, several bugs were discovered in DBrowser. Version 0.3.10 was released to address these. Due to the short time (less than 24 hours) between the release of version 0.3.9 and 0.3.10, all 0.3.9 changes are included in this document, and 0.3.10 changes are id...

A possible explanation for this problem: It seems when a Windows system advises that a new Java update is available, the update may install a new JRE even if a JDK installation is being used. So, it's entirely possible to wind up using the latest Java run-time with an older javac Java compiler. I do...

Blanks should have worked, but I think I know why they didn't. If my theory is correct, the fix will be trivial and I'll send out another release tonight.

Argh. As much as I don't want to endure another Windows machine, I think I'm going to have to set up a Vista box so I can catch these problems before a release. The file name it should have generated is: relbackup_d__Rel-version-3_BirdTrack_0_3_9_2008_July_29_01_44_PM.d Note the colon is changed to ...

This version of Rel includes a number of changes. New features have been added to DBrowser: 1. DBrowser shows the percentage of available memory in the lower right-hand corner of the window. 2. DBrowser goes to greater effort to trap errors, including running out of memory, and shut down gracefully ...

I've been giving some more thought to FOR, ORDER, and the switch that can make these available or unavailable. I'm now inclined to implement FOR and ORDER, but make them always available. I.e., not provide a switch to turn them off. My reasoning is this: Pragmatic argument: Use of a switch means Aut...

The return of FOR (the <iterate statement>) and ORDER is imminent, possibly as soon as version 0.3.10. Along with these, I'm inclined to provide a command-line switch to optionally disable such extensions, for use in pedagogical (or other) contexts where strict adherence to Tutorial D is desirable. ...

I eventually remembered to use double quotes around the entire path. You might want to mention that requirement when you document this feature. Good point! I shall do so. I never use spaces in directory names due to the problems they cause (AllMyDirectoryNamesLookSomewhatLikeThis), so I easily forg...

Unfortunately, I had the permissions set incorrectly on this forum topic so folks couldn't post. I'm posting the following response to a question sent to me via email, that had been intended for this forum: DBrowser has a means to set the database directory, but I've realised I didn't document it an...

Some further information on this... I've fixed the bug in switching from enhanced to non-enhanced and back. It no longer leaks memory, and the fix will be available in the version 0.3.9 update. However, in testing this I've found that the Java library mechanisms used to display enhanced output consu...

Unfortunately, I've not yet been able to consistently duplicate this bug. During testing prior to the release of 0.3.7, I encountered it exactly once, but it never occurred again. The error message indicates a lock is being retained on an internal persistent data structure (implemented via the Berke...

I have been able to duplicate this problem. There appears to be a memory leak in DBrowser. When "Enhanced" is switched from enhanced to non-enhanced and back again, it seems the original enhanced display (or its contents) is retained in memory. A relation of relatively high cardinality tur...

This release provides the following features: - A "Backup" button in DBrowser to automatically make a database backup. - The installer now creates "Start" menu entries and optional desktop shortcuts under Linux and Microsoft Windows. This release also fixes the following bugs: - ...

This version improves the DBrowser command-line client, which now provides
tabular-formatted display of tuples and relations, an HTML export
facility, and an indication of the number of tuples affected by database
update operations.

Download it from http://dbappbuilder.sourceforge.net/Rel.html