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Life of your developers
    Dev receives a feature request
        Add calculator to app
    Dev designs the solution
        Your average dev
            - Calculator.Form
            - Calculator.FormController
                - calculate
                - add
                - subtract

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# Dependencies =================================================================

err_unless_executable () {
  if ! [ -x "$(command -v $1)" ]; then
    echo "Program '$1' is required. Please install it and make it available in your \$PATH. Aborting." >&2
    exit 1
  fi
}

# TODO: can we expect curl these deps to be installed in all target machines?

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# This is a debugging tool for flaky ruby/rack (rails) browser tests not properly
# waiting for potentially slow server responses (eg. with Capybara). Its a Rack
# middleware that adds a delay to every response, thus making the problem
# evident.
#
# In Rails, add the following to the end of your Application class definition in
# `config/application.rb`, AND REMOVE AFTER DEBUGGING!!!
#
#     # TODO: REMOVE!!
#     require("slow_requests_for_debugging")

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Recruitment interview ideas
===========================

You
---

One interesting challenge
    difficult feature?
    difficult bug?
Any personal projects?

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create or replace function value_or_raise(
  anyelement,
  if boolean,
  else_raise text
)
returns anyelement
language plpgsql
immutable
as $function$

nandilugio

Paragliding Weather - Spotting good XC days

https://www.youtube.com/watch?v=PD_mjIiRxuo sierikas. Zurich, Switzerland

General

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---------------------------------------
-- SQL Training 2/4 hands-on session --
---------------------------------------

-- Customers
drop table if exists customers cascade;
create table customers (
  id serial primary key,
  name text not null
);

nandilugio

SQL

Histogram queries

select
  (age/10)*10 as from_age, -- Bucket unique
 ((age/10)*10)+10 as to_age,

nandilugio

Don Ramon Songs

1ra

cuándo cambia a reaguee?

--         x2
B F# G E   canto, solo, canto (acaba en G)