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  3. August 2006

Re: Spam:Re: Even more embedded SQL.... Thank you EVERYBODY (one lastthing)

A subfile has a limit of 9999 records. Its easy to program to stop at that limit, but really, at that point a subfile has little use. Thats why I suggested a filter earlier. Later I saw your post where the users need to process all the records. Well, ok. But they aren't going to process 65,000 in one sitting. If they really are going to process all of the records, one after another, why display 10 at a time, anyway? Display them one record at a time, and allow the page keys to page up and down through the main file, one record at a time? Then, have the various possible sorts set on by F-key(s) and use logicals as was suggested by someone earlier. 

Alan Shore wrote:


I just created a quick and dirty program to read a 65,500 record file to a
load-all subfile. Using Debug, it errors out on the  10,000th record to the
subfile.
Making changes as you suggested resulted in the program errors out on the
10,000th record to the subfile.

Oh well. Never mind



Alan Shore

NBTY, Inc
(631) 244-2000 ext. 5019
AShore@xxxxxxxx
Michael_Schutte@b obevans.com Sent by: To rpg400-l-bounces@ RPG programming on the AS400 / midrange.com iSeries <rpg400-l@xxxxxxxxxxxx> cc 08/03/2006 02:27 Subject PM Re: Spam:Re: Even more embedded SQL.... Thank you EVERYBODY (one lastthing) Please respond to RPG programming on the AS400 / iSeries <rpg400-l@midrang e.com> 



Thanks,

I've never used it, but I "wrongly" assumed that it was designed so that
you could do more than 9,999 records.




             "Crispin Bates"
             <cbates@xxxxxxxxx
             et>                                                        To
             Sent by:                  "RPG programming on the AS400 /
             rpg400-l-bounces@         iSeries" <rpg400-l@xxxxxxxxxxxx>
             midrange.com                                               cc

                                                                   Subject
             08/03/2006 02:13          Re: Spam:Re: Even more embedded
             PM                        SQL.... Thank you EVERYBODY (one
                                       lastthing)

             Please respond to
              RPG programming
              on the AS400 /
                  iSeries
             <rpg400-l@midrang
                  e.com>






Michael,

The DDS Manual specifies that a program to system field should be 5S0 if
used for these keywords. But, it also quite explicitly states that the
maximum number of records in a subfile is 9999.

Crispin.

----- Original Message -----
From: <Michael_Schutte@xxxxxxxxxxxx>
To: "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
Sent: Thursday, August 03, 2006 12:43 PM
Subject: Spam:Re: Even more embedded SQL.... Thank you EVERYBODY (one last
thing)



In the control record. You can chose to enter "Records in subfile" or

name

a field in "Program-to-system field" by putting an "8" as the option in
SDA.  If you use program-to-system field you must define the field in the
control records dspecs.  You will create this field just as you would for



a
hidden field but instead of using an H, you would use a P.  The biggest
you
can define this field is 5, 0 (it may be the only size that you can
specify).

                            Define Display Layout
Subfile control record . . . . . . . . . :   C1
Type values, press Enter.
                                           Keyword  Number
  Records in subfile . . . . . . . . . .   SFLSIZ
    Program-to-system field  . . . . . .            SFLSIZE
  Records per display  . . . . . . . . .   SFLPAG     14
  Spaces between records . . . . . . . .   SFLLIN
F3=Exit   F12=Cancel


Once you've specified the field in the screen above put a 12 on the
control
record to edit the screen. Then press F4 to work with fields.  You will
see
this screen.

                               Work with Fields
Record . . . :   C1
Type information, press Enter.
  Number of fields to roll . . . . . . . . . . . . . . . . . .     6
Type options, change values, press Enter.
  1=Select keywords  2=Edit comments   4=Delete field
Option   Order   Field       Type Use  Length  Row/Col  Ref Condition
Overlap
            10   MYSFLRRN      S   P      5,0
            20   *DATE         C          6,0   01 002
            30   *TIME         C          6,0   01 013
            40   SDPROGRAM     A   O       10   01 059
            50   SFLRRN        S   H      5,0
            60   RECLOC        A   H       10

More...
 Add                               H            Hidden
 Add                               M            Message
 Add        10   sflsize           P   5,0      Program-to-system
F3=Exit   F6=Sort by row/column   F12=Cancel

You see in the bottom,I've entered a program to system field with the

same

name as I used above.

In the RPG program, you will then Eval    SFLSIZE = *HIVAL or 99999





            Alan Shore
            <AlanShore@xxxxxx
            om>                                                        To
            Sent by:                  RPG programming on the AS400 /
            rpg400-l-bounces@         iSeries <rpg400-l@xxxxxxxxxxxx>
            midrange.com                                               cc

                                                                  Subject
            08/03/2006 12:35          Re: Even more embedded SQL....
            PM                        Thank you EVERYBODY (one last
                                      thing)

            Please respond to
             RPG programming
             on the AS400 /
                 iSeries
            <rpg400-l@midrang
                 e.com>







Michael - as William Shakespear once said
"What The @#$%^& are you talking about?"

Could you be more explicit.
Are you saying that there is a way to load 99,999 records to a load all
sub-file?

Please (and I stress please) be more forthcoming



Alan Shore

NBTY, Inc
(631) 244-2000 ext. 5019
AShore@xxxxxxxx



            Michael_Schutte@b
            obevans.com
            Sent by:                                                   To
            rpg400-l-bounces@         RPG programming on the AS400 /
            midrange.com              iSeries <rpg400-l@xxxxxxxxxxxx>
                                                                       cc

            08/03/2006 12:27                                      Subject
            PM                        Re: Even more embedded SQL....
                                      Thank you EVERYBODY (one last
                                      thing)
            Please respond to
             RPG programming
             on the AS400 /
                 iSeries
            <rpg400-l@midrang
                 e.com>






I believe that you can use a program-to-system field that will allow you
to
create 99,999 records.





            Alan Shore
            <AlanShore@xxxxxx
            om>                                                        To
            Sent by:                  RPG programming on the AS400 /
            rpg400-l-bounces+         iSeries <rpg400-l@xxxxxxxxxxxx>
            michael_schutte=b                                          cc
            obevans.com@midra
            nge.com                                               Subject
                                      Re: Even more embedded SQL....
                                      Thank you EVERYBODY
            08/03/2006 12:25
            PM


            Please respond to
             RPG programming
             on the AS400 /
                 iSeries
            <rpg400-l@midrang
                 e.com>







Booth - you and I must be on the same wavelength, or in mutual mind-meld
mode or something.
I want to take time to thank everyone who has replied to my question,

with

suggestions, ideas, thoughts, other questions and especially examples.

I think I have a handle on everything that I need in relation to what is
required for SQL and Dynamic sort building, but what bothers me is the
position to aspect of SQL, where the file data is rebuilt, with the first
record being equal to or greater than the value that was requested to be
positioned to. The problem of paging up from that point (before the first
record) will mean yet another re-creation.
So I was thinking of a couple of things
1/. Load the first 9,999 records into a load all sub-file.
If the user wants to go above that, recreate the data and load the next
9,999 records etc. etc.
If the user wants to position to a value AND its within this 9,999 NO
PROBLEM
If its outside the range , recreate the data and load the applicable

9,999

records into the sub-file.
2/. Create a file (via DDS) with all the fields defined
COL1, COL2, COL3, COL4, COL5, COL6, COL7 and an additional field which is
in effect equal in size to ALL the fields CONCATENATED. This field would
now be the key of the file, and depending upon what sort is required,
build
this field accordingly
for example
if the sort is COL1, COL2, COL3, COL4, COL5, COL6, COL7, the this key
field
is created as
COL1 concat COL2 concat COL3 concat COL4 concat COL5 concat COL6 concat
COL7
and then use regular RPG to handle the page up, page down, position to
page-at-a-time sub-file
Anybody any thoughts on either of these 2 ideas?



Alan Shore

NBTY, Inc
(631) 244-2000 ext. 5019
AShore@xxxxxxxx






            Booth Martin
            <booth@xxxxxxxxxx
            om>                                                        To
            Sent by:                  RPG programming on the AS400 /
            rpg400-l-bounces@         iSeries <rpg400-l@xxxxxxxxxxxx>
            midrange.com                                               cc

                                                                  Subject
            08/03/2006 11:40          Re: Even more embedded SQL....
            AM


            Please respond to
             RPG programming
             on the AS400 /
                 iSeries
            <rpg400-l@midrang
                 e.com>






May I make a suggestion here?

A small, but very helpful step might be to put filters in place before
the process starts, or at any time in the process.  Let the user set the
filters with an F-key.  Point out to the users the problems it solves
for them, and I believe they will get on board. "I want all of zip code
12345 sorted by color"  becomes a breeze to do.

If they will filter so that the number of records of interest remains
below about 2500 records then you can do a load-all into an array and
the sorting becomes a piece of cake.  Heck, it even allows a scroll bar,
which really is wonderful if for no other reason than that they can pull
the subfile up or down one record at a time with no coding required on
your part.  (Yes, thats right.  One record at a time up or down.  Piece
of cake.)



Alan Shore wrote:

That's one thing I'm still playing around with in my head. I've talked

with

the user, and even he's not sure what he wants here.
I'm leaning more towards starting from the beginning of the file (No

matter

how its sorted, for each RE-SORT)as I'm pretty sure this will be easier

to

code for.



Alan Shore

NBTY, Inc
(631) 244-2000 ext. 5019
AShore@xxxxxxxx



             Booth Martin
             <booth@xxxxxxxxxx
             om>

To

             Sent by:                  RPG programming on the AS400 /
             rpg400-l-bounces+         iSeries <rpg400-l@xxxxxxxxxxxx>
             alanshore=nbty.co

cc

             m@xxxxxxxxxxxx

Subject

                                       Re: Even more embedded SQL....
             08/03/2006 10:40
             AM
             Please respond to
              RPG programming
              on the AS400 /
                  iSeries
             <rpg400-l@midrang
                  e.com>



So, then, when the user clicks on the other column, say color, will the
first record of the new subfile be the first record of the field value
in record 1 of the subfile?

Lets say I have a subfile sorted by year and the first displayed record
happens to have a value of "White" in the color column.  When I click
the color column does my new subfile start with "White"  or with the
lowest color alpha value, say... "Amaretto" or "Blue" or "Cyan"?




Alan Shore wrote:

Thanks Booth
The answer is for the WHOLE data (ALL 15,000 records) to be sorted
(ascending/descending) based upon whatever combination of the 7 columns

the

user wants, hence the Dynamic sort. The order by of the SQL statement

will

have to be dynamically built.



Alan Shore

NBTY, Inc
(631) 244-2000 ext. 5019
AShore@xxxxxxxx







             Booth Martin
             <booth@xxxxxxxxxx
             om>

To

             Sent by:                  RPG programming on the AS400 /
             rpg400-l-bounces@         iSeries <rpg400-l@xxxxxxxxxxxx>
             midrange.com

cc

Subject

             08/03/2006 10:21          Re: Even more embedded SQL....
             AM




             Please respond to
              RPG programming
              on the AS400 /
                  iSeries
             <rpg400-l@midrang
                  e.com>






What if you present data by, say, year.  Then the user clicks the

column

headed "Color".  Do you want the 15 items shown by column "year" to be
sorted by color, or so you want all 15000 records sorted by color

first,

then by year?

(Also, clicking the sort column a second time could present the same
data in reverse order (ascending vs. descending)


Alan Shore wrote:

Thanks for your reply Michael, but I think you misunderstand what I am
looking for.
If my screen is displaying 7 different columns, the user wants to be

able

to sort the data by ANY combination of those columns

for example
Col1, Col2, Col3, Col4, Col5, Col6, Col7
and then (by magic) the same data by
Col7, Col6, Col5, Col4, Col3, Col2, Col1
AND THEN
Col6
Or maybe
Col5, Col6, Col1

This would mean building the ORDER BY within the SQL statement based

upon

the request of the user.
So as per my original request
if anyone can help me, I am looking for an example of embedded SQL and
Dynamic
Sorting Subfiles - Page at a time (with the ability to position to a
particular piece of data)

However - Michael, I will still look up your suggestion

Thanks in advance


Alan Shore

NBTY, Inc
(631) 244-2000 ext. 5019
AShore@xxxxxxxx




             Michael_Schutte@b
             obevans.com
             Sent by:

To

             rpg400-l-bounces@         RPG programming on the AS400 /
             midrange.com              iSeries <rpg400-l@xxxxxxxxxxxx>

cc


             08/03/2006 09:53

Subject

             AM                        Re: Even more embedded SQL....



             Please respond to
              RPG programming
              on the AS400 /
                  iSeries
             <rpg400-l@midrang
                  e.com>




Look in the archives for uses of the CASE statement.  I don't remember

the

exact syntax at this time, but you can use the case statement to order

by

a

specific field based on the user selection.







             Alan Shore
             <AlanShore@xxxxxx
             om>

To

             Sent by:                  RPG programming on the AS400 /
             rpg400-l-bounces@         iSeries <rpg400-l@xxxxxxxxxxxx>
             midrange.com

cc

                                       RPG programming on the AS400 /
                                       iSeries

<rpg400-l@xxxxxxxxxxxx>,

             08/03/2006 09:53          rpg400-l-bounces@xxxxxxxxxxxx
             AM

Subject

                                       Even more embedded SQL....

             Please respond to
              RPG programming
              on the AS400 /
                  iSeries
             <rpg400-l@midrang
                  e.com>












  Hi All,

  I have been given a project that requires the need to display,

within

a

subfile, the data from 2
  separate files with the ability to sort that data from any number of
different columns. So I
  thought to myself, this smacks of embedded SQL and Dynamic Sorting
Subfiles. The unfortunate
  thing is that the data I have to display is over 15,000 records long

(and

growing) so if anyone
  can help me, I am looking for an example of embedded SQL and Dynamic
Sorting Subfiles - Page at
  a time (with the ability to position to a particular piece of data)"

  Some title for an article huh? If anyone has an example of what is
required, or could point me
  in some direction, I would be very grateful.










Alan Shore

NBTY, Inc
(631) 244-2000 ext. 5019
AShore@xxxxxxxx
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