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Re: dbschema : 100 - ISAM error: duplicate val....

Posted By: Art Kagel
Date: Thursday, 17 December 2009, at 6:52 a.m.

In Response To: RE: dbschema : 100 - ISAM error: duplicate val.... (Lapeire, Jacques)

I'm assuming that these tables don't already exist at the time you are
running the schema create, so those indexes should not exist either. More
likely it is indexes created by a constraint that is not supported by an
already existing named index. That's one of the enhancements that myschema
gives you over dbschema. It forces the creation of a named index for every
constraint that needs one if it doesn't already exist. Why is this a
problem recreating a database when it wasn't a problem in the original?
Well, it has to do with the order of the tabids. You likely have altered
some of the tables over time and some of those alters were not in-place so
the tables' tabids changed. The engine uses the tabid to name unnamed
objects. However, the old names of the these objects belonging to
renumbered tables still use the older tabid and that's clashing with the
newly created tables' objects. It's weird, I know. Anyway, you can either
edit the SQL manually, or use myschema to avoid the problem.

If you want, send me the SQL file privately and I'll try to spot the problem
DDL, but it's easier to just get, compile, install, and use myschema.
Really.

Art

Art S. Kagel
Oninit (www.oninit.com)
IIUG Board of Directors (art@iiug.org)

See you at the 2010 IIUG Informix Conference
April 25-28, 2010
Overland Park (Kansas City), KS
www.iiug.org/conf

Disclaimer: Please keep in mind that my own opinions are my own opinions and
do not reflect on my employer, Oninit, the IIUG, nor any other organization
with which I am associated either explicitly or implicitly. Neither do
those opinions reflect those of other individuals affiliated with any entity
with which I am affiliated nor those of the entities themselves.

On Thu, Dec 17, 2009 at 6:05 AM, Lapeire, Jacques <
jacques.lapeire@ts.fujitsu.com> wrote:

> Hi Art,
>
> yes , you are right I'm using the -ss option,
> in fact I'm using : dbschema -d isa -ss > isa.sql
>
> I started it once more and now it's going further, the error appears when
> generating the "create index"-statements.
>
> create unique index "root".iprw1 on "root".iprw (nina,tarif,ddeb
>
> desc) using btree in par1 ;
> create index "cti".acth1 on "cti".acth (nmed) using btree in
>
> chrvs1 ;
> 100 - ISAM error: duplicate value for a record with unique key.
>
> Could it be because I run the dbschema while everyone is still working (~
> 150
> sessions active) ?
>
> I've run this several times before without any problems, during migrations,
> always in addition
> to the dbexport, but then of course no one is connected.
>
> Thx,
>
> Jacques
>
> -----Original Message-----
> From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of Art
> Kagel
> Sent: Tuesday, December 15, 2009 6:24 PM
> To: ids@iiug.org
> Subject: Re: dbschema : 100 - ISAM error: duplicate val.... [18395]
>
> I'm going to guess that you are using the output of dbschema -ss to
> recreate
> an existing database on another server or a differently named database with
> the same set of tables. If that's so, the problem is that the script
> contains a combination of named and unnamed indexes and constraints and
> some
> of the named objects are clashing with unnamed objects for which the engine
> has generated default names. IDS is generating different names for the
> implicitly named objects than it did in the source database and these names
> are clashing with some of the explicit object names.
>
> The most likely culprit is an index or constraint on this particular table,
> acth, but that depends on how you were running the dbaccess session and how
> you determined where the problem was encountered. It could be a table later
> in the file.
>
> One solution is to use my dbschema replacement utility, myschema, to get
> the
> schema from the source database. Myschema was specifically created to avoid
> these kinds of problems. It creates explicit names for all implicitly named
> objects in the output schema. The explicit names are based on the existing
> implicit names in the source server so there can be no clashes in the
> target
> server when you execute the DDL script.
>
> Myschema is contained in the package utils2_ak which you can download from
> the IIUG Software Repository (www.iiug.org/software) or from the Oninit
> web
> site (www.oninit.com/utils).
>
> Art
>
> Art S. Kagel
> Oninit (www.oninit.com)
> IIUG Board of Directors (art@iiug.org)
>
> See you at the 2010 IIUG Informix Conference
> April 25-28, 2010
> Overland Park (Kansas City), KS
> www.iiug.org/conf
>
> Disclaimer: Please keep in mind that my own opinions are my own opinions
> and
> do not reflect on my employer, Oninit, the IIUG, nor any other organization
> with which I am associated either explicitly or implicitly. Neither do
> those opinions reflect those of other individuals affiliated with any
> entity
> with which I am affiliated nor those of the entities themselves.
>
> On Tue, Dec 15, 2009 at 10:22 AM, JACQUES LAPEIRE <
> jacques.lapeire@ts.fujitsu.com> wrote:
>
> > Hi Folks,
> >
> > running IDS 9.40 on Solaris.
> >
> > During dbschema, th ejob was interrupted with the message above.
> >
> > Any idea how I can easily determine the table with the problem ?
> >
> > Here are the last lines of the output of dbschema :
> >
> > { TABLE "cti".acth row size = 56 number of columns = 6 index size = 9 }
> > create table "cti".acth
> > (
> >
> > nmed integer not null ,
> >
> > nagr decimal(11),
> >
> > nom char(25),
> >
> > pren char(15),
> >
> > statut_envoi char(1),
> >
> > type_envoi char(4)
> > ) in chrvs1 extent size 500 next size 100 lock mode page;
> > revoke all on "cti".acth from "public";
> >
> > 100 - ISAM error: duplicate value for a record with unique key.
> >
> > Thanks for your help.
> >
> > Jacques Lapeire
> >
> >
> >
> >
>
>
> *******************************************************************************
> > Forum Note: Use "Reply" to post a response in the discussion forum.
> >
> >
>
> --000e0cdfd704f0a5ea047ac7a8a7
>
>
>
> *******************************************************************************
> Forum Note: Use "Reply" to post a response in the discussion forum.
>
>
>
> *******************************************************************************
> Forum Note: Use "Reply" to post a response in the discussion forum.
>
>

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