Re: conversion of an old query /400

[Vernon Hamberg <vhamberg@xxxxxxxxxxxxxxx>]

Hi

You can use 2 commands - RTVQMQRY and RTVQMFORM - to convert Query/400 
queries.

You might run the ANZQRY command first. This will notify you of possible 
issues, many related to presentation and not to data.

Break levels are part of presentation, and that is the QMFORM piece.

Also, ordering may effect your results - and there is nothing to 
guarantee order without specific instructions with an ORDER BY or the 
equivalent in Query/400.

Anyhow, RTVQM* commands generate source that contains what is needed to 
create the objects (QMQRY and QMFORM).

Are all the join types- are they type 1? Then the SELECT statement 
should be fine at all releases of the OS.

If some are other than type 1, you need to put on a PTF - there was a 
long-standing bug in the RTVQMQRY that it made a SELECT with only type 1 
joins, no matter what.

Here are the PTFs from v5r4 - the earliest release for which they are 
available -

V5R4SI42309
6.1SI42345
7.1SI42363

I have given a presentation on QM stuff at COMMON and elsewhere, contact 
me off-list if you want a copy - also a lab.

FYI - Query/400 queries combine data retrieval and presentation in one 
object - QM separates them - QMQRY is data retrieveal (SELECT statement) 
and QMFORM is presentation - level breaks, column headings, all that stuff.

QMQRYs can be used for almost any SQL statement - not just SELECTs - 
that's a topic for another day, of course.

Cheers
Vern

On 12/26/2013 4:59 PM, Hoteltravelfundotcom wrote:
> HI I have been unable to duplicate this query.
> It uses 5 files it matches from the orderhistory file to customer, and
> shipping, invoice history and address files.
> OHENT#            EQ       ADENT#
> OHSFX#            EQ       ADSFX#
> OHORD#            EQ       IDORD#
> OHENT#            EQ       ACENT#
> OHSFX#            EQ       ACSSF#
>
> has some record selects and sorting, no problems so far. Does totals on qty
> shipped and $shipped.
>
> Does break levels on 9 fields. this is the part I cannot translate. then
> puts the data to a temp file.
>
> I am not getting the same number of records no matter what.  am sure the
> issue is how to code this Break in SQL.