Author: Gérard Lochon
Posted: 2012-07-10 08:57:21 Link
>----- Original Message -----
>From: "Jean MAURICE" <jsm.maurice@wanadoo.fr>
>To: <profox@leafe.com>
>Sent: Tuesday, July 10, 2012 3:25 PM
>Subject: Re: Months later ... i have an SQL soluce for "what is the rank
>ofthis data in an index order?"
>
>oh my god !!
>
><Je n'aurais JAMAIS imaginé imbriquer des SELECT dans la clause FROM !!!!
>
>I would never dare use a SELECT in a FROM clause of a SELECT statement
>being
>itself in a FROM clause of a 'upper' SELECT !!!
>
>The Foxil
>
>Jean à Grenoble
>
YES you knew it Jean !
(even if you can't remind it)
In a previous thread within our french newsgroup,
there was a question about filtering a bottom of top of bottom
lot of records, to get the number 'n' within a scalable data lot,
and i told you about imbricating SELECTs FROM clause
three times deep to reach out the result !
Tha't the same way i did it ; when you choose your prime
subset, at first file level asking, you can then bind a recno()
to a field, so it will fit correctly while upsourced to the prior
request. A way to get rid of recno()'s sql ghosts ...
After, it is more than the way it takes to raise the sauce ...
:o)))
Gérard.
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Author: Gérard Lochon
Posted: 2012-07-10 09:14:56 Link
>
> Is there any value to know the location # from BOF(), and if there is
> why is closer better depending on index?
Grmbl grmbl grmbl ...
Let me put my fingers out of my *not so soft* holidays' best drink,
(pastis 51), and i'll next find out a *f**ing* solution, if my *suck...g*
wife don't make a database crash using my private profile.
Waa waa, how could i rest for a while beeing happy,
while you're sucker filling me with pain (sur la planche) ?
;o)
Gérard.
PS : the less you give, the more they ask.
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Author: Allen
Posted: 2012-07-10 10:45:13 Link
I would stick with the Pastis :) or start the cab sav
Al
-----Original Message-----
Grmbl grmbl grmbl ...
Let me put my fingers out of my *not so soft* holidays' best drink, (pastis
51), and i'll next find out a *f**ing* solution, if my *suck...g* wife don't
make a database crash using my private profile.
Waa waa, how could i rest for a while beeing happy, while you're sucker
filling me with pain (sur la planche) ?
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Author: Gérard Lochon
Posted: 2012-07-10 13:25:32 Link
----- Original Message -----
>
> Is there any value to know the location # from BOF(), and if there is
> why is closer better depending on index?
BOF() is an XBase iterative function, nothing to do witrh SQL ensembly
conceipt.
Somewhere, excluding it.
However; it is always possible to replace this lack of logic.
If we consider the previous example :
[VFP]
CREATE CURSOR test ;
(lib c(10),mt i)
INSERT INTO test VALUES ("john",10)
INSERT INTO test VALUES ("jennifer",15)
INSERT INTO test VALUES ("stella",25)
INSERT INTO test VALUES ("sophia",40)
INSERT INTO test VALUES ("greg",50)
INSERT INTO test VALUES ("jeff",20)
[/VFP]
It is possible to "create a rank" according to a choosen order.
Let's do it. We choose to order "mt" values :
[VFP]
SELECT xx.lib, xx.mt, COUNT(yy.mt) as rank ;
FROM test xx, test yy ;
WHERE xx.mt <= yy.mt ;
GROUP BY xx.lib, xx.mt ;
ORDER BY xx.mt DESC, xx.lib DESC
[/VFP]
Once upon this order is made, we can determine
a numeric distance delta (your question) from
BOF() or EOF().
The final request beeing trivial,
i would't offense your professional side
by giving you tricks on me.
Gérard.
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Author: Stephen Russell
Posted: 2012-07-10 14:27:28 Link
On Tue, Jul 10, 2012 at 1:25 PM, Gérard Lochon <g-lochon@wanadoo.fr> wrote:
> ----- Original Message -----
>
>>
>> Is there any value to know the location # from BOF(), and if there is
>> why is closer better depending on index?
>
> BOF() is an XBase iterative function, nothing to do witrh SQL ensembly
> conceipt.
> Somewhere, excluding it.
>
> However; it is always possible to replace this lack of logic.
>
> If we consider the previous example :
>
> [VFP]
>
> CREATE CURSOR test ;
> (lib c(10),mt i)
>
> INSERT INTO test VALUES ("john",10)
> INSERT INTO test VALUES ("jennifer",15)
> INSERT INTO test VALUES ("stella",25)
> INSERT INTO test VALUES ("sophia",40)
> INSERT INTO test VALUES ("greg",50)
> INSERT INTO test VALUES ("jeff",20)
>
> [/VFP]
>
> It is possible to "create a rank" according to a choosen order.
>
> Let's do it. We choose to order "mt" values :
>
>
> [VFP]
>
> SELECT xx.lib, xx.mt, COUNT(yy.mt) as rank ;
> FROM test xx, test yy ;
> WHERE xx.mt <= yy.mt ;
> GROUP BY xx.lib, xx.mt ;
> ORDER BY xx.mt DESC, xx.lib DESC
>
> [/VFP]
>
> Once upon this order is made, we can determine
> a numeric distance delta (your question) from
> BOF() or EOF().
>
---------------------
Does this handle the tie at the #2 rank properly for ranks 3,4&5?
--
Stephen Russell
Sr. Analyst
Ring Container Technology
Oakland TN
901.246-0159 cell
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