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From YouTube: Joche está escribiendo un libro de XPO 😎
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A
A
B
B
That
I
think
is
a
fundamental
part
of
our
work
and
medicine..
So
I
think
something
worth
writing
for
the
people
on
the
team,
for
the
people
on
the
clients
for
the
audience
for
everything.
I.
Think
it's
useful
to
put
all
that
knowledge
in
one
picture,
because
I
think
usually
what
I
notice
is
that
when
one
talks
about
access
to
data
or
databases
or
persistence,
they
are
always
like
small
islands
of
knowledge
And.
It
seems
that
they
do
not
connect
Everything
to
lose.
A
No,
no
and
above
all,
to
We,
José,
always
say
that
one
of
the
greatest
beneficiaries
of
the
content
we
offer
is
ourselves,
many
times
we
return
later
and
refresh
and
many
times,
I
find
the
answer
to
what
we
are
looking
for
in
your
articles
and
you
find
it
in
mine.
So.
It
is
a
learning,
experience.,
eternal
and.
B
A
I
think
that
we
would
actually
have
to
trace
the
origins
of
our
friendship,,
the
origins
of
the
company
and
all
the
things
we
do.
I
think
that
we
greatly
owe
it
here,.
But
I
was
looking
for
that
photo
of
us
in
the
garage
drawing
and
talking
for
hours
about
the
cameras,
And,
worse
and
I,
couldn't
find
it,
but
I
do
think
that
I
equipped
it
in
some
way.
It
has
been
one
of
the
great
motivations
that
has
pushed
us
and
if
you
look
at
xpeo
just.
B
A
Taken
out
black
magic
from
where
the
team
did
not
exist
without
a
framework,
the
team
güey
The
xpo
band
for
the
school
when
we
used
in
in
samarin
but
the
school,
then
XP
or
not
It,
has
not
opened
us
in
any
way.
In
this
way,
access
to
data
from
dot
net
is
100%
and
it
has
forced
us
not
only
to
understand
the
layer
and
continue
for
today,
as
always,.
We
recommend
everyone
go
further
down
and
see,
that
is,
the
relational
bases
that
I
have
been
calling
the
indexes.
A
in
the
and
already
say
we
will
jump
to
say
the
whole
concept
of
relational
databases,
but
not
only
that
the
concept
of
orm
many
people
either
love
it
or
hate
it
and
sql
with
sql,
then
x.
Worse,
I.
Think
that
somehow,
even
though
Of
course,
eh,,
we
see
all
the
going
into
no
more
and
more
has
made
us
go
more
and
more
into
all
the
base
and
foundational
concepts,
I.
Don't.
B
B
That
I
literally,
owe
my
knowledge
of
dots
net
to
about
three
events:
one,
having
met
Walter,,
who
has
taught
me
visual
dot,
net,
two,,
having
gone
on
to
work
with
xpo
and
al
and
Express
support,.
That
was
mostly
my
university
and
a
bifox
pro
university
and
being
more
that
they
have
nothing
to
do
with
it
and
php.
That
has
nothing
to
do
with
all
this
So.
My
knowledge
was
given
by
the
labor
side
right
and
well.
A
We
have
had
an
application
with
performance
problems.
We
have
had
to
ask
to
say
what
the
pro
is
doing
and
then
say
if
we
have
to
go
further
Ok
here
it
is
worse,
not
the
one
that
is
adding
it.
What
is
the
relational
database.
Doing
we
are
going
to
review
the
sql
that
He
made
a
plan,,
let's
review
the
indexes,
he
has
given
us.
B
B
A
Was
watching
a
video
that
I
have
to
investigate
a
little
more
on
the
subject,
but
where
Amazon
was
moving
part
of
its
monolithic
infrastructure
and
saving
like
ninety
percent
in
spending?
So
you
know
what
we
have
always
talked
about:
how
funny
it
is
cyclical,
it's
a
microservice
to
be
able
to
scale
and
play
together.
Now
they
are
saying
a
bit
and
the
reality
is
that
the
fundamentals
are
always
very
important.
B
A
B
B
Javier
de
20
years
of
accumulated
knowledge
and
experience
and
Well,
you
just
mentioned
the
orms,
people,
love
or
hate
them
and
I
think
it's
easier
to
love
them
a
little.
If
one
understands
how
they
are
What
is
their
mechanism
of
how
they
work
and
great
part
of
understanding
that
also
understanding.
There
are
a
lot
of
layers.
One
starts
with
the
layer
of
relational
databases:
why
are
they
relational
databases.
A
B
Top
well
just
before
starting
this,
this
chapter-
that
is
this
podcast
episode.
I
was
watching
statistics
and
supposedly
78.
78%
of
the
database
in
production
are
relational
databases.
That
means
that
most
of
the
databases
in
the
world
are
relational
databases.
If
it
is
in
big
movement
of
not
sql,
true
But
one
can
only
progress
something
of
course,,
not
sql,,
already
taking
into
account
that
they
were
relational.
Databases.
There
is
always
that
intermediate
problem,
right,
because
the
relational
database
in
a
theory
is
like
from
the
60s
or
70s,,
which
was
really
quite
valid
at
that
time.
B
B
B
B
How
indexes
are
created,
How
postrents
are
created
How.
This
affects
performance
too,
so
I
think
that
to
get
to
the
part
of
understanding
a
URL,
one
has
to
first
understand
the
relational
databases,
part
to
see
what
I
am
abstracting
and
also
to
see
what
problem
I
am
solving
because,
usually
with
urm,
what
I
solve
is
encapsulating.
The
connections
of
the
second
thing
and
two
It
is
that
I
am
touching
binding.
The
data
with
the
data
in
the
same
format
as
the
programming
language,.
B
It's
true
that
ADO,
for
example,
ADO
dot
net
began
by
providing
xml
and
some
classes
on
top
of
it
that
were
generated
from
the
xml
to
be
able
to
access
this
data,,
but
they
were
already
like
more
layers.
So.
When
I
I
started
with
dot
net
xml
I
was
going
to
save
the
world,
I
was
going
to
cure
cancer.
I
was
going
to
be
everything
and
it
was
the
solution
for
all
things.
Everything
was
an
extensible
model
that
html
is
similar.
They
are
tag
languages
in
html.
B
They
are
fixed
tags
and
in
xml
they
are
tags.
I
can
make
them
up
But.
What
was
going
on,
that
brought
a
lot
of
problems,.
We
had
the
relational
part
that
was
looking
optimal,.
They
put
ADO
on
top
of
it,
two
net
points,.
It
was
conclusive
Well,
that
is,,
it
works
super
well,,
but
the
ultimate
concept
of
data
access
was
Data
set
and
datables
that
came
from
xml.
What
happened
I
remember
too
From
that
experience.
They
asked
me
to
make
a
report.
The
report
ended
in
binary
data
two
hundred
megabytes.
B
The
schema
of
those
binary
data
was
two
gigabytes.
The
mxml
axis
was
It
was
much
more
than
the
data
So.
It
was
a
big,
a
big
loss
of
performance.
I
took
out
binary
data
from
I
transformed
it
that
was
in
the
personal
database
also
saved
to
occupy
two
memory
guides.
It
was
a
big
waste,
so
they
were.
It
was
a
good
idea
that
didn't
end
up
working
a
term
working
well
but
Apart
from
the
Data
Table
and
the
datacents,.
B
All
the
other
mechanisms
continue
to
work
until
today.
You
occupy
it,
Xpo
occupies
it,.
It
occupies
it
in
hypernet,
and
everything,
all
possible.
Orms,
occupy
it
in
dapper,
that
people
see,
that
it
is
so
fast,
all
that,
in
the
background,
is
the
same
thing.
They
are
all
two.
There
is
none
that
is
skipped.
It
is
impossible
to
skip
it
Unless.
You
are
reading
as
being
more
something
like
that.
But
not
everyone
goes
through
the
dot
net
bookstore,
which
is
that
it
is
two
So.
B
A
Is
going
to
return
and
How
much
of
Consideration
had
to
be
taken
when
designing
a
database
engine
How?
Do
we
store
the
information
How?
Do
we
store
the
logs
How?
Do
we
create
backups?
Do
we
partition
this?
How
do
we
reference
it
from
one
table
to
another
How?
Do
we
maintain
integrity?
I
always
remember.
A
The
College,
if
it
did
not
match,
gives
you
a
problem
when
you
were
running
our
Fabian
application
and
meanwhile
small
considerations
to
have
to
have
everything
running
quite
a
lot,
that
is
to
say,
without
a
problem,
and
today,,
when
the
reader
begins
to
cease
to
be
as
important
as
many
times,
considerations
already
begin
to
cease
to
have
the
same
value
and
one
can
make
riskier
decisions..
How
is
it,
let's
repeat
the
information?
Let's.
B
Repeat
it
Yes.
What
happens
that
Javier?
That's
good
You
just
said
it
people
that,
if
not
the
databases,
think
that
the
designs
are
from
the
seventies,
more
or
less,
technically
or
theoretically,
fifties
sixties,
implementation
of
the
seventies
Where.
There
were
a
lot
of
problems
to
solve.
You
died,
I'm,
taking
care
of
the
file
system
supports
files
as
big
as
the
tables
I
can
create.
B
B
It's
easy
to
complain,
because
what
people
haven't
done
like
my
system
is
slow
because
mysql
is
slow
because
sql
's
the
database
If,
they
knew
the
work
it
is
to
write
these
things,
I
would
appreciate
it
more,,
but
I
think
that
we
are
in
a
time-
and
you
just
mentioned
it-
that
I
almost
think
about
it.
Every
day,.
B
We
already
think
that
we
have
surpassed
the
time
when
engineering
I
was
the
star
of
computing
because,
for
example,
when
Facebook
was
made,
when
all
the
social
networks
were
made,
Twitter
I
had
to
solve
a
lot
of
technical
problems
on
how
I
store
as
much
information
as
I
do
now.
Data
Center
How
I
make
the
databases
How
I
design.
My
scheme
for
to
go
faster
were
engineering
challenges.
Now
all
these
nachos
this
contract
in
them
they
take
care
of
everything
before
Whoever
could
do.
These
things
came
to
market
first
Not.
B
Now
now
it's
in
their
idea
in
their
business
vision
and
the
golden
age
in
engineering
that,
because
Before,
I
was
the
one
who
solved
the
technical
challenge,,
he
has
the
market,.
Now
he
is
the
one
who
came
up
with
the
idea
of
the
market,
meteorologically
speaking,
they
in
the
market,,
because
before
the
fact
of
saying
Ah,
I
set
up
a
site
that
Scales
and
I
can
connect
all
the
bases,.
That
was
the
challenge.
Not
now,.
B
Now
it's
something
else:
Now
that
was
Amazon
web
Services,,
two
clicks,,
ten
pesos,
everything
was
replicated
everywhere
and
it's
already
easy,
right,.
But
we
forget
that
part,
all
the
accumulated
suffering
that
exists
between
the
databases,
operating
systems,,
the
connections
to
another.
Those
are
two
three
four
clicks
and
that's
it
and
an
account
an
account,
sometimes
something
a
little
big
and
budget.
A
Budget
for
nothing
I
tell
him
José,
we
forget
until
we
need
it,
because
at
the
same
time
that
at
the
moment
you
have
to
scale
there
are
two
options
or
contracts.
Someone
who
comes
for
one
oil
configure
everything
or
you
go
back
to
the
basics,
and
you
start
to
remember
how
to
replicate
data,
how
it
will
be
autoscaling
how
to
free
up
memory,
how
to
improve
cpu
processing.
B
A
B
A
B
B
You
just
mentioned
it,
Javier,,
sorry,,
I,
cut
it
off,
and
it's
The
important
thing
about
the
university
I
think
that
there
are
a
lot
of
very
primitive
basic
concepts
that
are
important
to
learn.
For
example,.
What
size
are
the
variables,
I?
Don't
know
if
you
have
noticed
that
most
of
the
cases
that
we
have
in
the
office
are
performance,
cases,,
a
lot
memory,
a
lot
of
access
to
data.
Why
Because
I
also
have
an
explanation
and
I
have
finished
it
this
week?
I
think
because
we
work
assuming
that
the
resources
are
infinite
before.
B
A
There
is
also
one
Remember:
I
am
always
a
participant
in
productivity
if
I
have
to
give
values.
and
I
have
to
solve
the
problem
and
of
course,
we
are
Many
times
working
at
a
high
level,
but
also
when
we
work
in
HD
applications.
We
have
to
analyze
that
the
limited
record
we
know
how
much
end
we
can
save.
We
know
how
many
memory
we
can
then,
depending
on
the
project,
we
can
take
certain
attributions
and
certain
contributions
and
sometimes
a
little
further
up.
B
In
the
solution.
You
have
said
what
it
is.
What
is.
The
objective
of
the
project
is
to
finish
the
project
is
to
take
the
commercial
part
and,
for
the
commercial
part,
to
finish
executing
it
and
get
involved
from
the
project,
because
the
micro
optimizations
we
have
spoken
with
the
people
of
the
Express.
There
are
a
thousand
podcasts
about
it.
Do
not
optimize
anything
that
has
never
come
to
light,
because
who
knows
if
it
will
occupy
someone?
Why
optimize
it
And?
B
B
once
with
Jordi
with
Jordi
from
the
Dominican
Republic
yesterday
he
said
the
code
has
to
follow
the
objectives
of
the
organization
and
the
objectives
of
the
organization
is
to
sell
whatever
they
are
selling.
There
is
a
budget
for
the
following
month
to
always
optimize
it
there
we
are
going
to
return
to
the
concept
of
Always,
all
of
all
the
podcasts
and
episodes
technical
debt,
But.
A
B
A
A
We
know
which
part
of
the
user
is
doing
more,.
We
can
give
more
care
to
that
part
of
the
application,.
We
can
optimize
what
we
know,
first.,
that
it
is
really
being
used,
because
one
of
the
errors
that
I
have
seen,
both
building
new
trades
and
optimizing
performance,
is
spending
too
much
time
trying
to
fix
something
that
is
used
by
two
people
when
what
90%
of
the
person
uses
is
leaving
this
one,
then
well,
José
nothing.
This.
A
This
episode
was
short
just
to
announce
everything
that
is
coming
to
announce
that
we
are
going
to
be
talking
a
lot
more
about
sex
data
to
announce
that
we
are
talking
a
lot
more
about
here,
but
about
relational
database
urm
of
sql
of
sql
of
ado.net
frame
At
the
end.
We
will
also
play
a
little
bit
and,
of
course
there
is
how
we
integrate
all
this,
so
nothing
guys
See!
You
in
the
next
episode
take
care.