Hi Karl, Isnt it the same ? I am doing the check if ($result['pk'] == 1),
and you are doing if ($result['pk'] !== null). I wanted to make sure I
dont get false positives, what if $result['pk'] is set to zero, in your
case it will be a match but thats probably not what we want, cuz the pk
field is not set to 1..
Regards,
Ratin
On Mon, Oct 10, 2016 at 5:38 PM, Karl DeSaulniers <karl@xxxxxxxxxxxxxxx>
wrote:
> Hi Ratin,
> I "think" you can just do this and not have to store the table name.
> However, I have no way of testing this. You will have to test on your end.
>
> while ($result = $query->fetchArray()) {
> if ($result['pk'] !== null) {
> $primary_key=$result['pk'];
> }
> }
>
> Best,
>
> Karl DeSaulniers
> Design Drumm
> http://designdrumm.com <http://designdrumm.com/>
>
>
>
>
> > On Oct 10, 2016, at 7:12 PM, Ratin <ratin3@xxxxxxxxx> wrote:
> >
> > Sorry about my late reply but this was my function - a bit of a hack but
> works properly on my version of php-sqlite3:
> >
> >
> > function get_primary_key_name($table)
> > {
> > $primary_key='';
> > $db = new MyDB();
> > if(!$db)
> > {
> > echo $db->lastErrorMsg();
> > }
> > else
> > {
> > $qstr = "PRAGMA table_info(" . $table . ");" ;
> > $query = $db->query($qstr);
> > while ($result = $query->fetchArray())
> > {
> > if ($result['pk'] == 1)
> > {
> > $primary_key=$result['name'];
> > }
> > }
> > }
> > $db->close();
> > return $primary_key;
> > }
> >
> >
> > On Sat, Aug 20, 2016 at 3:35 AM, Karl DeSaulniers <karl@xxxxxxxxxxxxxxx
> <mailto:karl@xxxxxxxxxxxxxxx>> wrote:
> > This may also shed some light for you.
> > The accepted answer and possibly the one below it if you are on .NET
> >
> > http://stackoverflow.com/questions/763516/information-
> schema-columns-on-sqlite <http://stackoverflow.com/
> questions/763516/information-schema-columns-on-sqlite>
> >
> > HTH,
> >
> > Best,
> >
> > Karl DeSaulniers
> > Design Drumm
> > http://designdrumm.com <http://designdrumm.com/>
> >
> >
> >
> >
> > > On Aug 20, 2016, at 5:30 AM, Karl DeSaulniers <karl@xxxxxxxxxxxxxxx
> <mailto:karl@xxxxxxxxxxxxxxx>> wrote:
> > >
> > > Hey Ratin,
> > > Have you looked into the table column named 'pk' inside table_info?
> > > That is where a column is indicated to be a primary key or not.
> > >
> > > Best,
> > >
> > > Karl DeSaulniers
> > > Design Drumm
> > > http://designdrumm.com <http://designdrumm.com/> <
> http://designdrumm.com/ <http://designdrumm.com/>>
> > >
> > >
> > >
> > >
> > >> On Aug 18, 2016, at 6:51 PM, Ratin <ratin3@xxxxxxxxx <mailto:
> ratin3@xxxxxxxxx>> wrote:
> > >>
> > >> Hi Karl, Thanks a lot for your response, I think INFORMATION_SCHEMA
> is not available for sqlite database. I had to built up the whole query
> with php using PRAGMA table_info(tablename), looking at the pk entry, when
> its 1, get the column name, and then update the sql statement based on
> that. A bit of work, wouldve been much simpler if a method was provided,
> but oh well ..
> > >>
> > >> Thanks again
> > >>
> > >> Ratin
> > >>
> > >> On Thu, Aug 18, 2016 at 2:53 PM, Karl DeSaulniers <
> karl@xxxxxxxxxxxxxxx <mailto:karl@xxxxxxxxxxxxxxx> <mailto:
> karl@xxxxxxxxxxxxxxx <mailto:karl@xxxxxxxxxxxxxxx>>> wrote:
> > >> Hi Ratin,
> > >> Going to take a stab at this one.
> > >> Have you looked into INFORMATION_SCHEMA.COLUMNS for your query?
> > >> Might be where you want to look for what you are trying.
> > >> Sorry can't help more.
> > >>
> > >> Best,
> > >>
> > >> Karl DeSaulniers
> > >> Design Drumm
> > >> http://designdrumm.com <http://designdrumm.com/> <
> http://designdrumm.com/ <http://designdrumm.com/>>
> > >>
> > >>
> > >>
> > >>
> > >>> On Aug 18, 2016, at 1:27 PM, Ratin <ratin3@xxxxxxxxx <mailto:
> ratin3@xxxxxxxxx> <mailto:ratin3@xxxxxxxxx <mailto:ratin3@xxxxxxxxx>>>
> wrote:
> > >>>
> > >>> I'm writing the generic get that works on different tables having
> different
> > >>> primary keys but the argument of get is always the primary key ,
> i.e. get
> > >>> request is -
> > >>>
> > >>> get (column name, value)
> > >>>
> > >>> the value is always the primary key value.
> > >>>
> > >>> It looks like it would be a pretty standard method but I cant find a
> method
> > >>> like that. Anybody have any clue?
> > >>>
> > >>> Thanks
> > >>>
> > >>> Ratin
> > >>
> > >>
> > >> --
> > >> PHP Database Mailing List (http://www.php.net/ <http://www.php.net/>
> <http://www.php.net/ <http://www.php.net/>>)
> > >> To unsubscribe, visit: http://www.php.net/unsub.php <
> http://www.php.net/unsub.php> <http://www.php.net/unsub.php <
> http://www.php.net/unsub.php>>
> > >>
> > >>
> > >
> >
> >
> > --
> > PHP Database Mailing List (http://www.php.net/ <http://www.php.net/>)
> > To unsubscribe, visit: http://www.php.net/unsub.php <
> http://www.php.net/unsub.php>
> >
> >
>
>
