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Re: Postgresql ODBC driver not found



On Thu, Sep 23, 2021 at 08:44:42AM +0200, Pierre Couderc wrote:
> Thank you very much!
> 
> See below :
> 
> On 9/22/21 3:37 PM, Henning Follmann wrote:
> > On Wed, Sep 22, 2021 at 11:07:28AM +0200, Pierre Couderc wrote:
> > > It is here I see it/them with:
> > > 
> > > odbcinst -q -d
> > > 
> > > but not with :
> > > 
> > >    SQLHENV env;
> > >    SQLCHAR driver[256];
> > >    SQLCHAR attr[256];
> > >    SQLSMALLINT driver_ret;
> > >    SQLSMALLINT attr_ret;
> > >    SQLUSMALLINT direction;
> > >    SQLRETURN ret;
> > >    SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &env);
> > >    SQLSetEnvAttr(env, SQL_ATTR_ODBC_VERSION, (void *) SQL_OV_ODBC3, 0);
> > > 
> > >    direction = SQL_FETCH_FIRST;
> > >    while(SQL_SUCCEEDED(ret = SQLDrivers(env, direction,
> > >                                         driver, sizeof(driver), &driver_ret,
> > >                                         attr, sizeof(attr), &attr_ret))) {
> > >      direction = SQL_FETCH_NEXT;
> > >      printf("%s - %s\n", driver, attr);
> > >      if (ret == SQL_SUCCESS_WITH_INFO) printf("\tdata truncation\n");
> > >    }
> > > 
> > > What do I miss...?
> > > 
> > The ability to clearly describe your problem!
> Sorry I tried to be minimum... But here are more details?

Not sorry, but what do you expect? That everybody has a magic crystal bowl to
fill in missing information?

> > 
> > What did you do?
> >    I assume you wrote some c code.
> Yes, this  code above is written in c (c++ in fact but I have simplified).

That is not c code. This does not compile.
Provide a minimum example which compiles, at least.


> >    Did you compile it? And if so, how?
> Yes, with default tools (gcc under debian bulllseye linked with libodbc)

Are you kidding me? That is not additional information. Just you
being condescending.
Strike one.

> >    You installed odbcunix I assume.
> >    How did you configure it?
> Correctly.

Really? REALLY?
Strike two.

> >    What is the output of "odbcinst -q -d"?
> 
> Correct :
> 
> [PostgreSQL ANSI]
> [PostgreSQL Unicode]
>

all right that is something.

can you please connect to your database with:

isql "PostgreSQL Unicode" <user> <password>

and perform a minimum check like:
select 1;


> > What did you expect?
> That my c program produces the same list
> > 
> > What did not work?
> >   Include logs, error messages.
> 
> Logs and error messages : none (This is the heart of the problem)
> 
> > 
> > What did you do to solve your problem so far?
> > 
> I have reduced my problem - which is much more complex - to the simplest
> test prograam.
> 
> And I ask for help, as I have no more idea after many hours.
> 
>

You know this is a debian user mailing list, right?

but anyway...


-H

-- 
Henning Follmann           | hfollmann@itcfollmann.com


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