March 2, 2021 7:13 PM, "Todd Roth" wrote:
> Hello,
> The tutorial on the docs page use to have a nice section on database
> functionality and a brief
> intro to pilog.
This is not tutorial, but you could try to read existent code in repos:
https://git.envs.net/mpech/tankf33der
Thanks Alex.
Looks like plenty of other db docs/tutorials on the website - will have a look
at those.
> On Mar 2, 2021, at 2:44 PM, Alexander Burger wrote:
>
> Hi Todd,
>
>> The tutorial on the docs page use to have a nice section on database
>> functionality and a brief intro to pilog. Are
Hi Todd,
> The tutorial on the docs page use to have a nice section on database
> functionality and a brief intro to pilog. Are those docs still available
> somewhere on the picolisp site? Can’t seem to locate.
Right, they do not exist any more in the pil21 release :(
The reason is that they
Thank you Guido and Andreas.
Regards,
Kashyap
On Tue, May 28, 2019 at 4:43 PM wrote:
> Hi Kashyap
>
> > Is there documentation about the file format of the database file
>
> See file @doc64/structures within the picolisp directory.
> There are the picolisp VM internals described, including
Hi Kashyap,
Does picoLisp\doc64\structures help? It contains some illustration about the
Database file.
BR,
geo
> On May 29, 2019, at 5:41 AM, C K Kashyap wrote:
>
> Hi,
> Is there documentation about the file format of the database file in PicoLisp?
> I am looking at the possibility of
Hi Kashyap
Is there documentation about the file format of the database file
See file @doc64/structures within the picolisp directory.
There are the picolisp VM internals described, including Database file
format.
Like every database binary file format, it is based on fixed blocks
(block
Alex Burgers PicoLisp DB tutorial describes indirecty the underlying format:
http://software-lab.de/doc/tut.html#db
"block size of 256 Bytes", talking of a CAR and a CDR which indicates, that
it is kind of "functional database", comparable to ultra expensive DATOMIC.
Alex also writes about kind
I was going over https://software-lab.de/doc/tut.html#db and looks like I
should just go with the Entity/Relation model.
Thanks Alex.
On Tue, Apr 16, 2019 at 10:15 PM Alexander Burger
wrote:
> On Tue, Apr 16, 2019 at 03:57:14PM -0700, C K Kashyap wrote:
> > Thanks Joh-Tob,
> > I think
On Tue, Apr 16, 2019 at 03:57:14PM -0700, C K Kashyap wrote:
> Thanks Joh-Tob,
> I think properties work for me. I was thinking that symbol would map to
> "key" but that need not be the case. My goal is to figure out a way to
> store records that are 4 tuple - "Entity name", "Attribute", "Value",
Hi Kashyap,
> I tried to implement key-value store/get. I am
> not sure how to enumerate all the keys though.
A key/value storage can be done very easily.
> (pool "test.db")
You store values under keys directly in the DB root object by passing NIL as the
tree:
(store NIL "KEY" "VALUE")
>
>
>
>
>
> Ursprüngliche Nachricht
>
>
>
> Von: ckkash...@gmail.com
> Gesendet: 16. April 2019 16:42
> An: picolisp@software-lab.de
> Antworten: picolisp@software-lab.de
> Betreff: Re: Database question
>
>
> Hi Alex,
>
>
>
;Root" ?
If you want to get the complete property list of any symbol (internal or in the
DB) just call 'getl on it
Ursprüngliche Nachricht
Von: ckkash...@gmail.com
Gesendet: 16. April 2019 16:42
An: picolisp@software-lab.de
Antworten: picolisp@software-lab.de
Betreff: Re
Hi Alex,
Does this look reasonable? I tried to implement key-value store/get. I am
not sure how to enumerate all the keys though.
(pool "test.db")
(set *DB "ROOT")
(de kv-add (k v)
(let nv (new T)
(set nv v)
(put *DB k nv)
On Sun, Apr 14, 2019 at 12:54:19PM -0700, C K Kashyap wrote:
> Is the builtin database in picolisp tied to OOP? The documentation seems to
> indicate it.
Not necessarily. The DB consists of three independent layers.
Persistent "external" symbols are the base. They are directly in the core
Hi Steven,
I have decided that man's best friend is 1) a dog, 2) hexdump. ;)
Indeed! Though in this case, when exploring the structure of a PicoLisp
database, I would recommend 'show' and 'edit'.
Perhaps you already found http://picolisp.com/wiki/?usingedit;? It
explains this specifically in
Hi Steven,
Hello marmorine,
Ummm... Steven. ;)
Oops! Sorry :)
Tried all sorts of size combinations, found one that is more compact, to
use (0 +Wrds) instead of the block size 1 for it. But then I guess you
should take a look with size to make sure you are not cutting things
to close?
Hi Alex,
I have decided that man's best friend is 1) a dog, 2) hexdump. ;)
What I did was try out the various prefix classes you mentioned with
the +List, +Ref, +String etc. in different combinations, and just went
and looked at them. More on that below.
Exactly. But this may not be a good
On Thu, 17 Jul 2014 09:13:38 +0200
Alexander Burger a...@software-lab.de wrote:
Hello marmorine,
Ummm... Steven. ;)
A few minor notes:
No quoting for local transient symbols, the the (use (G N) has also
been corrected. These are small things, but very useful for me.
You may be able
Hello marmorine,
(note: a bit long being a first post)
No problem :)
post a first attempt to check form and convention and company, so here
the latest variant (working):
...
Fine. That looks good.
A few minor notes:
1. As ___ is a local transient symbol, the single quote is not really
Hi Konrad,
I'm trying to write a newX function for a +Entity subclass and its
behaving rather strangly. The code is as follows:
(de newAdversary (Nm Tp Abs Spd Ht Def Arm)
...
: (show '{2})
{2} (+Adversary)
armour 0
This looks all right (at least on the first glance).
however the
Hi Konrad,
ah, now I know!
On Wed, Mar 21, 2012 at 12:19:07PM +0100, Alexander Burger wrote:
I'm trying to write a newX function for a +Entity subclass and its
behaving rather strangly. The code is as follows:
(de newAdversary (Nm Tp Abs Spd Ht Def Arm)
...
: (show '{2})
{2}
Hi David,
I'm fumbling through some tests trying to get an understanding of how to
insert and retrieve database objects:
Good! :)
(class +Cls +Entity)
(rel id (+Need +Key +String))
(rel val (+Need +String))
(dm T ()
(=: id (pack (in /dev/urandom (rd 5
(=: val *Val) )
Using
Hi Henrik,
(class +WordCount +Entity) #
(rel word (+Aux +Ref +Link) (article) NIL (+Aword)) #
(rel article (+Ref +Link) NIL (+Article)) #
(rel count (+Number))
(dbs
...
(4 +WordCount +Similarity) # 6 ---
This looks good. All '+WordCount' objects
- Did you call 'pool' with '*Dbs'?
- Are you sure you started with an empty database after you changed 'dbs'=
?
Yes on both accounts, strange, I will do some isolated tests today, ie
not use my normal import functions but instead simply insert some test
data into an empty database and then see
On Wed, Aug 19, 2009 at 10:08:03AM +0200, Henrik Sarvell wrote:
Note that the tree root nodes (e.g. {2}) above are always created in file=
#1.
What exactly do you mean by this?
There are external symbols in the DB which are neither entity objects
nor btree nodes. They are not under the
Ah sorry, didn't look hard enough at your example, OK seems like it
works like it's supposed to for you. The objects end up in #2 like you
want.
I'll get back after stepping through my #6 and #12 and doing some
basic inserts. If I still have problems I'll post a runnable file.
Thanks for the
Thanks for that, will try it out tonight!
/Henrik
On Tue, Aug 18, 2009 at 7:21 AM, Alexander Burgera...@software-lab.de wrot=
e:
Hi Henrik,
I've just used dbs to split my database into several files which seems
to be working but if I recall correctly the catch all will be file no
1 and
I almost forgot, I think I am seeing +Aux relations in no 1 too,
fairly long lists of dotted pairs smells like it. I suppose my dbs
example in the prior post won't take care of them properly, ie putting
them in their own files?
/Henrik
On Tue, Aug 18, 2009 at 8:49 PM, Henrik
Hi Henrik,
I've just used dbs to split my database into several files which seems
to be working but if I recall correctly the catch all will be file no
1 and it's growing out of proportion very rapidly when I import my
data. Out of proportion with regards to what I believe should be in it
I'm going to look into this too but what I had in mind was some kind
of maintenance you were running at one of your clients or something
like that.
/Henrik
On Tue, Jul 21, 2009 at 7:42 AM, Alexander Burgera...@software-lab.de wrot=
e:
Hi Henrik,
I vaguely remember a discussion approaches
On Tue, Jul 21, 2009 at 09:19:59AM +0200, Henrik Sarvell wrote:
of maintenance you were running at one of your clients or something
like that.
I cannot find a posting about that, but there is 'dbCheck' in
lib/too.l wich I use frequently.
The runtime monitoring with (heartbeat) and
That's it, dbgc and cron jobs, that rings a bell. Can you post an
example usage of dbgc?
/Henrik
On Tue, Jul 21, 2009 at 9:55 AM, Alexander Burgera...@software-lab.de wrote:
On Tue, Jul 21, 2009 at 09:43:46AM +0200, Alexander Burger wrote:
I cannot find a posting about that, but there is
On Tue, Jul 21, 2009 at 10:07:38AM +0200, Henrik Sarvell wrote:
That's it, dbgc and cron jobs, that rings a bell. Can you post an
example usage of dbgc?
Sure.
Usually I have a crontab entry for that application's user. It calls a
nightly backup routine, e.g. at 1:12 o'clock:
12 1 * * * ./p
Thought it would be a good thing to post the IRC follow up:
(16.15.20) hsarvell: What exactly happens when dbgc is run, what
garbage is cleaned?
(16.16.10) hsarvell: Is there garbage on disc?
(16.21.40) Regenaxer: Well, all objects which are not references by
any other object can safely be
On Tue, Jul 21, 2009 at 05:34:28PM +0200, Henrik Sarvell wrote:
Thought it would be a good thing to post the IRC follow up:
Great idea!
Thanks, Henrik!
Cheers,
- Alex
--
UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe
Hi Henrik,
I vaguely remember a discussion approaches to cleaning or optimizing
databases, I searched the mailing list however without success.
I'm not sure. There was a response (to some questions by Tomas) in
http://www.mail-archive.com/picolisp@software-lab.de/msg00073.html
What are
Hi Tomas,
I just tried to roughly benchmark the forking server and I do not
think it is a limiting factor. With the following code
That's right. For a database benchmark it is not a limiting factor, this
will be more on the db side.
However, if I try a non-forking server
Wasn't it somebody else?
Randall maybe...
/Henrik
On Thu, Dec 4, 2008 at 11:09 PM, Tomas Hlavaty [EMAIL PROTECTED] wrote:
Hi Henrik,
Well Thomas, I see that they used PHP in that test which means
they're using the beloved Apache
probably.
which I think you have bashed earlier for its
On Thu, Dec 04, 2008 at 11:40:29PM +0700, Henrik Sarvell wrote:
Wasn't it somebody else?
Randall maybe...
I believe to remember it was Konrad ;-)
Cheers,
- Alex
--
UNSUBSCRIBE: mailto:[EMAIL PROTECTED]
Hi Tomas,
Have you tried to rerun your solution and what improvement
(trans/min) did you achieve?
Unfortunately not ... Actually, my compagnon Josef Bartl wrote it
initially. He urged that we participate. I did some tuning then, and he
did the testing. After that, both of us were busy, so we
Hey, this is getting to be fun! Alex, thanks for stopping and having a
beer!
Till next time!
Cheers!
- Rand
On Thu, Dec 4, 2008 at 6:56 PM, Alexander Burger [EMAIL PROTECTED]wrote:
On Thu, Dec 04, 2008 at 05:06:39PM +, Tomas Hlavaty wrote:
are we officially adopting blame culture? ;-)
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