Forum: nexusdb.public.support
5th May 2022, 12:39 AM
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Replies: 18
Views: 1,393
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Forum: nexusdb.public.support
4th May 2022, 09:15 PM
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Replies: 18
Views: 1,393
As you say in a previous reply, iterating over...
As you say in a previous reply, iterating over the keys of the index changes the state of the cursor. I proved this to myself by running two operations in the same client program: the first operation...
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Forum: nexusdb.public.support
3rd May 2022, 09:08 PM
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Replies: 18
Views: 1,393
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Forum: nexusdb.public.support
3rd May 2022, 08:27 PM
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Replies: 18
Views: 1,393
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Forum: nexusdb.public.support
1st May 2022, 05:32 AM
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Replies: 18
Views: 1,393
Thanks - yes I can get the Session now,...
Thanks - yes I can get the Session now, server-side, without errors.
Next question: in principle, should I be able to access any property of a session server-side, simply by dereferencing its ID in...
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Forum: nexusdb.public.support
30th April 2022, 05:12 PM
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Replies: 18
Views: 1,393
I realised that my original problem was simply...
I realised that my original problem was simply that I was assigning a message ID to my plugin messages which had already been claimed by a standard server message in nxstMessages.pas. This meant that...
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Forum: nexusdb.public.support
28th April 2022, 03:31 AM
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Replies: 18
Views: 1,393
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Forum: nexusdb.public.support
28th April 2022, 03:03 AM
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Replies: 18
Views: 1,393
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Forum: nexusdb.public.support
28th April 2022, 02:30 AM
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Replies: 18
Views: 1,393
Server plugin
We are looking to support access across slow connections, and would like to carry out some operations on the server which would otherwise involve lots of round-tripping. An example is getting a list...
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Forum: nexusdb.public.support
6th March 2021, 06:51 PM
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Replies: 3
Views: 4,274
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Forum: nexusdb.public.support
6th March 2021, 05:19 AM
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Replies: 3
Views: 4,274
I followed this up with a post to the nxscript...
I followed this up with a post to the nxscript forum just over a year ago, outlining what I had done to get an image server working. Returning to this topic, I see that that was the last post (in...
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Forum: nexusdb.public.support
15th February 2021, 10:58 PM
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Replies: 12
Views: 3,311
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Forum: nexusdb.public.support
13th February 2021, 09:38 PM
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Replies: 12
Views: 3,311
Thank you, Thorsten. I can confirm that your...
Thank you, Thorsten. I can confirm that your updates to the code allow the use of KeyAsVariant where client and server have a NLS mismatch. Can we assume that these updates will be present in future...
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Forum: nexusdb.public.support
12th February 2021, 08:14 PM
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Replies: 12
Views: 3,311
One thing that would help would be if the...
One thing that would help would be if the standard message that NexusDb issues, on hitting an NLS mismatch, included some specifics of what locale it was expecting and what locale it actually found. ...
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Forum: nexusdb.public.support
12th February 2021, 07:38 PM
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Replies: 12
Views: 3,311
Is that just a matter of adding the unit which...
Is that just a matter of adding the unit which declares the custom key engine to the client program's Uses clause? Or is some more formal 'registration' of the custom key engine needed? I tried this...
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Forum: nexusdb.public.support
12th February 2021, 05:06 AM
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Replies: 12
Views: 3,311
Getting a key engine from a remote server
We have a program which gets lists of index keys for a specified index on a specified file. This works fine when the index in question uses a 'standard' key engine. It also works fine when run on...
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Forum: nexusdb.public.support
6th February 2021, 08:22 PM
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Replies: 16
Views: 3,552
So, something more like this?:
if...
So, something more like this?:
if aAction = eaRecordModify then begin
MetaCursor.sbcSwitchToIndex('ControlIdentity', 1, false);
metaRecordBuffer :=...
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Forum: nexusdb.public.support
6th February 2021, 12:40 AM
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Replies: 16
Views: 3,552
For the benefit of anyone still interested in...
For the benefit of anyone still interested in this topic, here is what I have written in my monitor/extender to delete all the records in my meta-table which have the Id of this modified record in...
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Forum: nexusdb.public.support
5th February 2021, 08:32 PM
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Replies: 16
Views: 3,552
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Forum: nexusdb.public.support
5th February 2021, 01:25 AM
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Replies: 16
Views: 3,552
Short answer is my lack of understanding of...
Short answer is my lack of understanding of server-side commands and a lack of examples/documentation to guide me in their use.
For example: Why do you need a record buffer to find a key? How do...
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Forum: nexusdb.public.support
4th February 2021, 07:04 PM
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Replies: 16
Views: 3,552
I think my monitor/extender is now broadly...
I think my monitor/extender is now broadly working. I ended up putting a cursor wrapper around each server table cursor, and using whichever object had a more helpful command. The main problem is the...
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Forum: nexusdb.public.support
4th February 2021, 01:22 AM
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Replies: 16
Views: 3,552
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Forum: nexusdb.public.support
4th February 2021, 12:51 AM
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Replies: 16
Views: 3,552
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Forum: nexusdb.public.support
3rd February 2021, 10:51 PM
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Replies: 16
Views: 3,552
It was going well, but I have an issue with the...
It was going well, but I have an issue with the cursor wrapper's FindKey function. If I use it on a three-field index:
then it interprets FindKey as I would expect. However, I have a simple index on...
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Forum: nexusdb.public.support
30th January 2021, 03:21 AM
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Replies: 16
Views: 3,552
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Forum: nexusdb.public.support
29th January 2021, 11:20 PM
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Replies: 16
Views: 3,552
Monitor/extender coding
Hi,
I am writing a monitor/extender for our NexusDb server, whose job is to populate a meta-table with values derived from another table. On the client side, this involves code like this:
Is there...
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Forum: nexusdb.public.support
29th January 2021, 01:35 AM
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Replies: 1
Views: 1,610
IPv6 support
Hi,
I see mentions of the possibility of IPv6 support in NexusDb, going back a decade or so. What is the current situation, please? If it's still not implemented, do you have plans to do so? Or is...
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Forum: nexusdb.public.support
16th October 2020, 01:56 AM
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Replies: 4
Views: 2,319
When are edits saved to nx1 file?
Hi,
One of our users has observed that edits are not saved to disc immediately. The nx1 file holding the table in question only has its date/time updated when the user closes the client program...
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Forum: nexusdb.public.discussions
13th March 2020, 03:27 AM
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Replies: 0
Views: 4,007
Delphi/NexusDb developer sought
I will be stepping down as a developer for the Modes museum cataloguing software [1] next year, so the Modes Users Association is now looking for a contractor to take on some of the load of...
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Forum: nexusdb.public.support.nxScript
26th February 2020, 10:19 PM
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Replies: 0
Views: 8,604
Server delivering binary content
We're looking to replace a set of CGI programs with equivalent .nxscript applications. One of these programs is an 'image server', which delivers a dynamically sized version of an image file.
The...
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Forum: nexusdb.public.support
6th September 2018, 04:52 PM
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Replies: 3
Views: 4,274
Nxscript server delivering binary content
I've been working with the script-based web server, trying to implement the beginnings of a browser-based version of our Windows client. One thing I want to do is to deliver a PDF response.
I gave...
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Forum: nexusdb.public.support
19th April 2018, 12:52 AM
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Replies: 1
Views: 2,702
To partially answer my own question ...
This...
To partially answer my own question ...
This behaviour applies when I use the context menu which appears when I right-click on the tray icon for the server. However, when I select 'Start service',...
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Forum: nexusdb.public.support
18th April 2018, 09:54 PM
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Replies: 1
Views: 2,702
nxServer running as service not visible
Hi,
Running the latest release (NexusDB413) I find that the standard nxServer is not visible to the Enterprise Manager when run as a service. However, it is visible when run as a program (in...
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Forum: nexusdb.public.support
13th December 2017, 01:48 AM
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Replies: 7
Views: 6,059
I'm building a custom NexusDB server, and I got...
I'm building a custom NexusDB server, and I got the same error (TokenExtractorDescriptor class not supported) when I built it with the 4.12 server code in Delphi 7 (yes, I know ...). The error only...
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Forum: nexusdb.public.support
5th August 2016, 12:53 AM
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Replies: 6
Views: 3,485
Eivind,
Further questioning suggests that the...
Eivind,
Further questioning suggests that the NexusDB server is idle, as it should be, when there is no client activity. I suspect that the problem may be related to Windows hibernating (and then...
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Forum: nexusdb.public.support
4th August 2016, 05:07 PM
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Replies: 6
Views: 3,485
Memory use and idle NexusDB server
Hi,
Our Modes museum cataloguing software is based on a custom NexusDB implementation. One user (out of over 600) is having a problem:
"Modes is still running fine for a period of time until the...
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Forum: nexusdb.public.support
20th October 2015, 02:18 AM
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Replies: 15
Views: 8,589
NexusDB components and Android
Hi,
Now that Delphi 10 Seattle is providing support for Android as a target, what are your plans (if any) for providing NexusDB components which will support the Android platform?
Richard
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Forum: nexusdb.public.support
31st October 2014, 02:16 AM
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Replies: 1
Views: 2,790
Hi,
Yes, I did exactly this some years ago in...
Hi,
Yes, I did exactly this some years ago in the context of indexing XML content. If you contact me at richard at light dot demon dot co dot uk we can talk about the context in which you're trying...
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Forum: nexusdb.public.support
31st May 2012, 02:24 AM
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Replies: 17
Views: 5,853
I did all of this, and found it made no...
I did all of this, and found it made no difference. The reason ... there was no filter in force at the time. This was just an asynchronous record count with an "each word" index selected, and so...
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Forum: nexusdb.public.support
28th May 2012, 09:39 PM
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Replies: 17
Views: 5,853
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Forum: nexusdb.public.support
28th May 2012, 09:34 PM
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Replies: 17
Views: 5,853
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Forum: nexusdb.public.support
22nd May 2012, 02:57 AM
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Replies: 17
Views: 5,853
With lightning speed ... :)
Although we are...
With lightning speed ... :)
Although we are still persevering with version 2 (hopefully not for much longer), I think that my analysis applies to the version 3 code as well - at least, by...
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Forum: nexusdb.public.support
19th April 2012, 04:43 AM
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Replies: 62
Views: 13,265
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Forum: nexusdb.public.support
17th April 2012, 04:54 AM
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Replies: 62
Views: 13,265
I think I can see a way forward with this, but...
I think I can see a way forward with this, but would appreciate a bit of help.
One thing we want to do is an efficient "contains" search. It occurs to me that this could be implemented as a key...
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Forum: nexusdb.public.support
11th November 2011, 02:35 AM
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Replies: 8
Views: 4,879
Just to note that this approach offers a handy...
Just to note that this approach offers a handy way of providing fulltext indexing support without having to update the structure of the source table. Since the cached table, with its associated...
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Forum: nexusdb.public.support
8th November 2011, 09:45 PM
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Replies: 8
Views: 4,879
Yes, I've understood that point now. It wasn't...
Yes, I've understood that point now. It wasn't clear [to me] from the documentation. I revised my code to create an AutoInc field only if it doesn't exist, and to create only one "fulltext" index...
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Forum: nexusdb.public.support
8th November 2011, 03:51 AM
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Replies: 8
Views: 4,879
Fulltext indexing and cached datasets
Hi,
Yes, I can report that it does work: I set up a fulltext index on a memo field in a cached table whose source is a table created using the EM. The cached table doesn't need the source table's...
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Forum: nexusdb.public.support
5th November 2011, 08:33 PM
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Replies: 8
Views: 4,879
Fulltext indexing and cached datasets
Thanks, Thorsten: I'll give it a go and report back.
Presumably this means that there is no requirement for the source table to have corresponding fulltext indexes?
Richard
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Forum: nexusdb.public.support
5th November 2011, 05:13 AM
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Replies: 8
Views: 4,879
Fulltext indexing and cached datasets
Hi,
Using 3.09. I'm trying to use a cached dataset, by linking it to a "real" dataset with a fulltext index, and then using the fulltext index to set a range on the cached dataset. However,...
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