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Posted to dev@calcite.apache.org by Ioan Eugen Stan <ie...@apache.org> on 2021/12/16 00:20:06 UTC

Re: Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Hi, 

Great idea with the meetup. 

I've watched that talk and gone through the tutorial code - submitted some feedback and here is some more:

It's been VERY useful and I appreciate the work you do for Calcite and documentation. 
Regarding the training (youtube video) also hard to follow for a calcite/relational algebra beginner like me. 
I think an even gentler introduction / quick start is needed (not necessarily during meetup, but for newcomers in general). 

I found the online video to go quite fast into explaining Calcite classes and WHAT needs to be implemented but it was hard for me to understand WHY - or I need more intermediate steps. 
I had to go through the talk, the code and other code examples to better understand things.

So these online resources (videos, talks, blogs, tutorials and code samples) are VERY welcomed.

Although I am new to Calcite I might submit a small 5 min lightning talk if I have time to validate my idea :) . 

On 2021/11/23 18:34:59 Julian Hyde wrote:
> +1 for Jan 19
> 
> It would be great if Stamatis repeated one or two of the segments of
> his tutorial at BOSS. (I was co-presenter but you've all heard enough
> from me.) The material about adapters is foundational to understanding
> Calcite. It could happen on Jan 19 or at another meetup in a couple of
> months.
> 
> Julian
> 
> 
> On Tue, Nov 23, 2021 at 1:55 AM Stamatis Zampetakis <za...@gmail.com> wrote:
> >
> > Thanks everyone for the feedback!
> >
> > @ Vladimir O, Vladimir S: Thanks for proposing to give a talk.
> > I believe both topics will be very interesting for the community.
> > When you settle up on what you would like to present please share an
> > abstract & duration for the talk.
> >
> > Since there is interest and we already have 1-2 people willing to give a
> > talk, I would suggest fixing the date/time as soon as possible.
> > How about Wednesday, 19 January 2022, 17:00 UTC [1] ?
> >
> > If more people express interest in giving a talk we can either fit it to
> > the same meetup or organise another meetup in 2-3 months after.
> >
> > Best,
> > Stamatis
> >
> > [1] https://www.timeanddate.com/worldclock/fixedtime.html?iso=20220119T1700
> >
> > On Tue, Nov 23, 2021 at 12:05 AM Haisheng Yuan
> > <h....@alibaba-inc.com.invalid> wrote:
> >
> > > +1 for online meetup.
> > >
> > > - Haisheng
> > >
> > > ------------------------------------------------------------------
> > > Sender:Julian Hyde<jh...@gmail.com>
> > > Date:2021/11/23 00:58:25
> > > Recipient:<de...@calcite.apache.org>
> > > Theme:Re: [DISCUSS] Apache Calcite Online Meetup January 2022
> > >
> > > +1
> > >
> > > Thanks for suggesting this, Stamatis.
> > >
> > > Julian
> > >
> > > > On Nov 22, 2021, at 7:12 AM, Zhe Hu <il...@163.com> wrote:
> > > >
> > > > Got it. Thanks！
> > > > |
> > > >
> > > >
> > > > |
> > > > ---- Replied Message ----
> > > > | From | xiong duan<no...@gmail.com> |
> > > > | Date | 11/22/2021 23:09 |
> > > > | To | dev<de...@calcite.apache.org> |
> > > > | Subject | Re: [DISCUSS] Apache Calcite Online Meetup January 2022 |
> > > > Yes. You can find the relative talks in
> > > > http://calcite.apache.org/community/#talks .
> > > >
> > > > Zhe Hu <il...@163.com> 于2021年11月22日周一 下午10:50写道：
> > > >
> > > >> +1 for online meetup.
> > > >> And I’m curious about if there is any playback for this meetup, because
> > > >> somebody might couldn't attend due to timezone variety or any other
> > > reasons.
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >> On 11/22/2021 22:26，xiong duan<no...@gmail.com> wrote：
> > > >> Great idea. +1 for an online meetup.
> > > >>
> > > >> Justin Swanhart <gr...@gmail.com> 于2021年11月20日周六 上午12:42写道：
> > > >>
> > > >> +1 for an online meetup
> > > >>
> > > >> On Fri, Nov 19, 2021, 11:32 AM Jacques Nadeau <ja...@apache.org>
> > > wrote:
> > > >>
> > > >> WRT to talk structure, I propose we do 5 or 10 minute lightning talks as
> > > >> opposed to something longer. It ensures a wider variety of topics,
> > > better
> > > >> attendance and you never have to sit that long through something you're
> > > >> not
> > > >> interested in...
> > > >>
> > > >> On Thu, Nov 18, 2021 at 11:47 PM Vladimir Sitnikov <
> > > >> sitnikov.vladimir@gmail.com> wrote:
> > > >>
> > > >> Are the people willing to give a talk around Calcite?
> > > >>
> > > >> I may present a talk regarding Gradle, and the upcoming migration to
> > > >> the
> > > >> idiomatic structure:
> > > >> https://issues.apache.org/jira/browse/CALCITE-4832
> > > >> https://github.com/apache/calcite/pull/2566
> > > >>
> > > >>
> > > https://docs.gradle.org/7.3/userguide/structuring_software_products.html
> > > >>
> > > >> What do people think in terms of timing?
> > > >>
> > > >> I think the new build structure is more like 30-45 min talk
> > > >>
> > > >> Vladimir
> > > >>
> > > >>
> > > >>
> > > >>
> > > >
> > > >
> > >
>

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Julian Hyde <jh...@gmail.com>.

I’d love to hear about your GraphQL implementation. (If the organizers think there is enough time in the meetup.)

I don’t think of GraphQL as “niche” at all. It’s a key tool for many, many app developers. It’s just that, despite the “QL” in the name, it’s not a conventional “query language”.

Julian

> On Jan 12, 2022, at 07:37, Gavin Ray <ra...@gmail.com> wrote:
> 
> If anyone is interested, I can spend 5-10 minutes briefly presenting the
> work I've been doing on automatic GraphQL API generation from Calcite data
> sources.
> GraphQL is still somewhat niche though, so I'll hold off on asking to speak
> about it unless there are folks attending who are interested/using it.
> 
> 
> 
>> On Tue, Jan 11, 2022 at 4:13 PM Ioan Eugen Stan <ie...@apache.org> wrote:
>> 
>> Hello Stamatis,
>> 
>> I would also like to share my work.
>> 
>> Title: calcite-clj - First steps using Calcite with Clojure
>> 
>> Abstract: A quick introduction on using Calcite with Clojure language.
>> I'll go through an simple example on how to use in memory table.
>> The example will cover REPL driven development.
>> If I have time I will showcase Apache OFBiz entity engine on top of Apache
>> Calcite and how to query OFBIz xml files (OFBiz data exports) using the
>> same engine (ongoing work).
>> 
>> Duration: 15 minutes
>> 
>>

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Eugen Stan <eu...@netdava.com>.

Hi Stamatis,

I created a PR https://github.com/apache/calcite/pull/2704 .

Thanks for the guidance.

Regards,
-- 
Eugen Stan

+40770 941 271  / https://www.netdava.com

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Stamatis Zampetakis <za...@gmail.com>.

Hi all,

First of all thanks a lot to everyone who participated and supported the
idea of the meetup.
Special thanks to Alexey, Ioan, and Gavin, for presenting their work. All
presentations were very interesting and valuable contributions to the
community.
You can find their presentations here [1].
@Alexey, Ioan, Gavin: Feel free to submit a PR to add them in the relevant
section of the website [2].

The idea of recurrent meetups has been brought up in the discussion so I
will revive an old thread about this topic to see if there is more interest
now.

Best,
Stamatis

[1] https://youtube.com/playlist?list=PLUp_iibbIwFF83qraogaG-GTPyjH5k258
[2]
https://github.com/apache/calcite/blob/864268c600bb5bd6077092f1c6605ddd59a4969e/site/community/index.md?plain=1#L83

On Thu, Jan 20, 2022 at 1:17 PM Eugen Stan <eu...@netdava.com> wrote:

> Hi,
>
> Very much appreciated Gavin!
> I do think there is overlap and I will publish the work I do and
> hopefully you will find it useful as well.
>
> Regards,
> --
> Eugen Stan
>
> +40770 941 271  / https://www.netdava.com

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Eugen Stan <eu...@netdava.com>.

Hi,

Very much appreciated Gavin!
I do think there is overlap and I will publish the work I do and 
hopefully you will find it useful as well.

Regards,
-- 
Eugen Stan

+40770 941 271  / https://www.netdava.com

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Gavin Ray <ra...@gmail.com>.

Thank you for hosting this, and it was nice to listen to the discussion and
learn.

I was sad Julian did not make it, I hoped he might be there to share wisdom.

There were two things I wanted to drop as a note really quick:

1) If there's enough interest, maybe these sorts of meetups could happen in
a more regular interval? Something like every month or few months?

2) Eugen asked a question at the end when I had to leave, about how to
manage and proxy to multiple databases. (The second part was about
implementing security/access controls)

I can help with the first part of the question with some code, as I am
having to do the same thing.
Here is an example of dynamically adding a Postgres + SQL Server DB while
the application is running to a global schema, then querying across them:

https://gist.github.com/GavinRay97/9e5f32c6664be13a27dd3c676f544719

Hope this helps and is roughly what you meant =)

On Wed, Jan 19, 2022 at 2:28 PM Eugen Stan <eu...@netdava.com> wrote:

> Hi,
>
> I published my presentation here https://ieugen.github.io/calcite-clj/
> for anyone who is interested.
>
> Once the video is up I will add a link to it as well.
>
> It was nice meeting with you!
>
> Regards,
> --
> Eugen Stan
>
> +40770 941 271  / https://www.netdava.com

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Eugen Stan <eu...@netdava.com>.

Hi,

I published my presentation here https://ieugen.github.io/calcite-clj/ 
for anyone who is interested.

Once the video is up I will add a link to it as well.

It was nice meeting with you!

Regards,
-- 
Eugen Stan

+40770 941 271  / https://www.netdava.com

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Jacques Nadeau <ja...@apache.org>.

In future, I suggest we just post the zoom link here. This one is still
going here:

https://cloudera.zoom.us/j/91701199263

On Wed, Jan 19, 2022 at 10:33 AM Julian Hyde <jh...@gmail.com> wrote:

> For what it’s worth, I had trouble logging into Meetup.com (from both an
> iPhone and a macOS laptop) and so missed the meetup.
>
> > On Jan 19, 2022, at 9:08 AM, Jacques Nadeau <ja...@apache.org> wrote:
> >
> > Shoot, totally missed that this was using meetup.com. Figured the
> date/time
> > would be discussed here. In the future would be helpful to also mention
> > time/date on the mailing list.
> >
> > On Wed, Jan 19, 2022, 8:43 AM Stamatis Zampetakis <za...@gmail.com>
> wrote:
> >
> >> Forgo the link to the event:
> >> https://www.meetup.com/Apache-Calcite/events/282836907/
> >>
> >> On Wed, Jan 19, 2022 at 5:42 PM Stamatis Zampetakis <za...@gmail.com>
> >> wrote:
> >>
> >>> Small reminder: the meetup starts in ~15 minutes.
> >>>
> >>> Best,
> >>> Stamatis
> >>>
> >>> On Wed, Jan 12, 2022 at 11:30 PM Stamatis Zampetakis <
> zabetak@gmail.com>
> >>> wrote:
> >>>
> >>>> Hi,
> >>>>
> >>>> I read the previous emails about the GraphQL project and it looks
> >>>> very interesting.
> >>>> @Gavin: Please send us a title, abstract, and duration of the talk.
> >>>> Don't hesitate to take more time if you need to. I think we still
> have a
> >>>> bit of margin.
> >>>>
> >>>> With this we can freeze the agenda for this meetup. If there is more
> >>>> interest we can immediately start discussing the next one.
> >>>>
> >>>> Although I appear as an organizer in the Apache Calcite Meetup group,
> >>>> this does not mean I am the only one deciding about the agenda or
> when a
> >>>> meetup should happen.
> >>>> If other committers/PMC members want to take a more active role in the
> >>>> organization I would be more than happy to add them as co-organizers
> in
> >> the
> >>>> group.
> >>>> Apart from that feedback & suggestions from anyone are always welcome.
> >>>>
> >>>> Best,
> >>>> Stamatis
> >>>>
> >>>> On Wed, Jan 12, 2022 at 8:36 PM Eugen Stan <eu...@netdava.com>
> >>>> wrote:
> >>>>
> >>>>> I would love to see GraphQL over Calcite for sure.
> >>>>>
> >>>>> On 12.01.2022 17:37, Gavin Ray wrote:
> >>>>>> If anyone is interested, I can spend 5-10 minutes briefly presenting
> >>>>> the
> >>>>>> work I've been doing on automatic GraphQL API generation from
> Calcite
> >>>>> data
> >>>>>> sources.
> >>>>>> GraphQL is still somewhat niche though, so I'll hold off on asking
> to
> >>>>> speak
> >>>>>> about it unless there are folks attending who are interested/using
> >> it.
> >>>>>
> >>>>>
> >>>>> --
> >>>>> Eugen Stan
> >>>>>
> >>>>> +40770 941 271  / https://www.netdava.com
> >>>>
> >>>>
> >>
>
>

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Julian Hyde <jh...@gmail.com>.

For what it’s worth, I had trouble logging into Meetup.com (from both an iPhone and a macOS laptop) and so missed the meetup.

> On Jan 19, 2022, at 9:08 AM, Jacques Nadeau <ja...@apache.org> wrote:
> 
> Shoot, totally missed that this was using meetup.com. Figured the date/time
> would be discussed here. In the future would be helpful to also mention
> time/date on the mailing list.
> 
> On Wed, Jan 19, 2022, 8:43 AM Stamatis Zampetakis <za...@gmail.com> wrote:
> 
>> Forgo the link to the event:
>> https://www.meetup.com/Apache-Calcite/events/282836907/
>> 
>> On Wed, Jan 19, 2022 at 5:42 PM Stamatis Zampetakis <za...@gmail.com>
>> wrote:
>> 
>>> Small reminder: the meetup starts in ~15 minutes.
>>> 
>>> Best,
>>> Stamatis
>>> 
>>> On Wed, Jan 12, 2022 at 11:30 PM Stamatis Zampetakis <za...@gmail.com>
>>> wrote:
>>> 
>>>> Hi,
>>>> 
>>>> I read the previous emails about the GraphQL project and it looks
>>>> very interesting.
>>>> @Gavin: Please send us a title, abstract, and duration of the talk.
>>>> Don't hesitate to take more time if you need to. I think we still have a
>>>> bit of margin.
>>>> 
>>>> With this we can freeze the agenda for this meetup. If there is more
>>>> interest we can immediately start discussing the next one.
>>>> 
>>>> Although I appear as an organizer in the Apache Calcite Meetup group,
>>>> this does not mean I am the only one deciding about the agenda or when a
>>>> meetup should happen.
>>>> If other committers/PMC members want to take a more active role in the
>>>> organization I would be more than happy to add them as co-organizers in
>> the
>>>> group.
>>>> Apart from that feedback & suggestions from anyone are always welcome.
>>>> 
>>>> Best,
>>>> Stamatis
>>>> 
>>>> On Wed, Jan 12, 2022 at 8:36 PM Eugen Stan <eu...@netdava.com>
>>>> wrote:
>>>> 
>>>>> I would love to see GraphQL over Calcite for sure.
>>>>> 
>>>>> On 12.01.2022 17:37, Gavin Ray wrote:
>>>>>> If anyone is interested, I can spend 5-10 minutes briefly presenting
>>>>> the
>>>>>> work I've been doing on automatic GraphQL API generation from Calcite
>>>>> data
>>>>>> sources.
>>>>>> GraphQL is still somewhat niche though, so I'll hold off on asking to
>>>>> speak
>>>>>> about it unless there are folks attending who are interested/using
>> it.
>>>>> 
>>>>> 
>>>>> --
>>>>> Eugen Stan
>>>>> 
>>>>> +40770 941 271  / https://www.netdava.com
>>>> 
>>>> 
>>

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Jacques Nadeau <ja...@apache.org>.

Shoot, totally missed that this was using meetup.com. Figured the date/time
would be discussed here. In the future would be helpful to also mention
time/date on the mailing list.

On Wed, Jan 19, 2022, 8:43 AM Stamatis Zampetakis <za...@gmail.com> wrote:

> Forgo the link to the event:
> https://www.meetup.com/Apache-Calcite/events/282836907/
>
> On Wed, Jan 19, 2022 at 5:42 PM Stamatis Zampetakis <za...@gmail.com>
> wrote:
>
> > Small reminder: the meetup starts in ~15 minutes.
> >
> > Best,
> > Stamatis
> >
> > On Wed, Jan 12, 2022 at 11:30 PM Stamatis Zampetakis <za...@gmail.com>
> > wrote:
> >
> >> Hi,
> >>
> >> I read the previous emails about the GraphQL project and it looks
> >> very interesting.
> >> @Gavin: Please send us a title, abstract, and duration of the talk.
> >> Don't hesitate to take more time if you need to. I think we still have a
> >> bit of margin.
> >>
> >> With this we can freeze the agenda for this meetup. If there is more
> >> interest we can immediately start discussing the next one.
> >>
> >> Although I appear as an organizer in the Apache Calcite Meetup group,
> >> this does not mean I am the only one deciding about the agenda or when a
> >> meetup should happen.
> >> If other committers/PMC members want to take a more active role in the
> >> organization I would be more than happy to add them as co-organizers in
> the
> >> group.
> >> Apart from that feedback & suggestions from anyone are always welcome.
> >>
> >> Best,
> >> Stamatis
> >>
> >> On Wed, Jan 12, 2022 at 8:36 PM Eugen Stan <eu...@netdava.com>
> >> wrote:
> >>
> >>> I would love to see GraphQL over Calcite for sure.
> >>>
> >>> On 12.01.2022 17:37, Gavin Ray wrote:
> >>> > If anyone is interested, I can spend 5-10 minutes briefly presenting
> >>> the
> >>> > work I've been doing on automatic GraphQL API generation from Calcite
> >>> data
> >>> > sources.
> >>> > GraphQL is still somewhat niche though, so I'll hold off on asking to
> >>> speak
> >>> > about it unless there are folks attending who are interested/using
> it.
> >>>
> >>>
> >>> --
> >>> Eugen Stan
> >>>
> >>> +40770 941 271  / https://www.netdava.com
> >>
> >>
>

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Stamatis Zampetakis <za...@gmail.com>.

Forgo the link to the event:
https://www.meetup.com/Apache-Calcite/events/282836907/

On Wed, Jan 19, 2022 at 5:42 PM Stamatis Zampetakis <za...@gmail.com>
wrote:

> Small reminder: the meetup starts in ~15 minutes.
>
> Best,
> Stamatis
>
> On Wed, Jan 12, 2022 at 11:30 PM Stamatis Zampetakis <za...@gmail.com>
> wrote:
>
>> Hi,
>>
>> I read the previous emails about the GraphQL project and it looks
>> very interesting.
>> @Gavin: Please send us a title, abstract, and duration of the talk.
>> Don't hesitate to take more time if you need to. I think we still have a
>> bit of margin.
>>
>> With this we can freeze the agenda for this meetup. If there is more
>> interest we can immediately start discussing the next one.
>>
>> Although I appear as an organizer in the Apache Calcite Meetup group,
>> this does not mean I am the only one deciding about the agenda or when a
>> meetup should happen.
>> If other committers/PMC members want to take a more active role in the
>> organization I would be more than happy to add them as co-organizers in the
>> group.
>> Apart from that feedback & suggestions from anyone are always welcome.
>>
>> Best,
>> Stamatis
>>
>> On Wed, Jan 12, 2022 at 8:36 PM Eugen Stan <eu...@netdava.com>
>> wrote:
>>
>>> I would love to see GraphQL over Calcite for sure.
>>>
>>> On 12.01.2022 17:37, Gavin Ray wrote:
>>> > If anyone is interested, I can spend 5-10 minutes briefly presenting
>>> the
>>> > work I've been doing on automatic GraphQL API generation from Calcite
>>> data
>>> > sources.
>>> > GraphQL is still somewhat niche though, so I'll hold off on asking to
>>> speak
>>> > about it unless there are folks attending who are interested/using it.
>>>
>>>
>>> --
>>> Eugen Stan
>>>
>>> +40770 941 271  / https://www.netdava.com
>>
>>

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Stamatis Zampetakis <za...@gmail.com>.

Small reminder: the meetup starts in ~15 minutes.

Best,
Stamatis

On Wed, Jan 12, 2022 at 11:30 PM Stamatis Zampetakis <za...@gmail.com>
wrote:

> Hi,
>
> I read the previous emails about the GraphQL project and it looks
> very interesting.
> @Gavin: Please send us a title, abstract, and duration of the talk.
> Don't hesitate to take more time if you need to. I think we still have a
> bit of margin.
>
> With this we can freeze the agenda for this meetup. If there is more
> interest we can immediately start discussing the next one.
>
> Although I appear as an organizer in the Apache Calcite Meetup group, this
> does not mean I am the only one deciding about the agenda or when a meetup
> should happen.
> If other committers/PMC members want to take a more active role in the
> organization I would be more than happy to add them as co-organizers in the
> group.
> Apart from that feedback & suggestions from anyone are always welcome.
>
> Best,
> Stamatis
>
> On Wed, Jan 12, 2022 at 8:36 PM Eugen Stan <eu...@netdava.com> wrote:
>
>> I would love to see GraphQL over Calcite for sure.
>>
>> On 12.01.2022 17:37, Gavin Ray wrote:
>> > If anyone is interested, I can spend 5-10 minutes briefly presenting the
>> > work I've been doing on automatic GraphQL API generation from Calcite
>> data
>> > sources.
>> > GraphQL is still somewhat niche though, so I'll hold off on asking to
>> speak
>> > about it unless there are folks attending who are interested/using it.
>>
>>
>> --
>> Eugen Stan
>>
>> +40770 941 271  / https://www.netdava.com
>
>

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Stamatis Zampetakis <za...@gmail.com>.

Hi,

I read the previous emails about the GraphQL project and it looks
very interesting.
@Gavin: Please send us a title, abstract, and duration of the talk.
Don't hesitate to take more time if you need to. I think we still have a
bit of margin.

With this we can freeze the agenda for this meetup. If there is more
interest we can immediately start discussing the next one.

Although I appear as an organizer in the Apache Calcite Meetup group, this
does not mean I am the only one deciding about the agenda or when a meetup
should happen.
If other committers/PMC members want to take a more active role in the
organization I would be more than happy to add them as co-organizers in the
group.
Apart from that feedback & suggestions from anyone are always welcome.

Best,
Stamatis

On Wed, Jan 12, 2022 at 8:36 PM Eugen Stan <eu...@netdava.com> wrote:

> I would love to see GraphQL over Calcite for sure.
>
> On 12.01.2022 17:37, Gavin Ray wrote:
> > If anyone is interested, I can spend 5-10 minutes briefly presenting the
> > work I've been doing on automatic GraphQL API generation from Calcite
> data
> > sources.
> > GraphQL is still somewhat niche though, so I'll hold off on asking to
> speak
> > about it unless there are folks attending who are interested/using it.
>
>
> --
> Eugen Stan
>
> +40770 941 271  / https://www.netdava.com

Re: [DISCUSS] Apache Calcite Online Meetup January 2022

Posted by Eugen Stan <eu...@netdava.com>.

I would love to see GraphQL over Calcite for sure.

On 12.01.2022 17:37, Gavin Ray wrote:
> If anyone is interested, I can spend 5-10 minutes briefly presenting the
> work I've been doing on automatic GraphQL API generation from Calcite data
> sources.
> GraphQL is still somewhat niche though, so I'll hold off on asking to speak
> about it unless there are folks attending who are interested/using it.


-- 
Eugen Stan

+40770 941 271  / https://www.netdava.com