DEV
description
Transcript of DEV
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DEVDBA
vs
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WHAT YOU’LL LEARN:
• Nothing• Of• Value
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READY?
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LET’S START BY DISPELLING SOME MYTHS
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FIRSTLYDevelopers don’t know jack about databases
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SECONDLYDBA’s know nothing about development
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THIRDLYThey can each do the others jobs
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FINALLYThey can’t work together
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you?who areSo
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Phil Winstanley
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Plip
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$41T
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to your development teams
microsoft expertisewe add
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get their apps built and deployed
we help customersbut mostly
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is attached to a database.application we see
and nearly every
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from the DBA & DEV relationshipsthe pain
so we see
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EVERYDAY
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the problem?what’s
so,
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this?itis
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do we fix it?
howand,
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to that…come back
we’ll
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what we hatelook at
let’s,
about each other.
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hate about developers?
do youwhat
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well?
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your database?to querythey dare
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the consequencesdon’t understand
that they
of their queries?
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their SQL?can’t tweak
that you
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is a null.an empty string
that they think
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for live application issues?
they blame youperhaps
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up at 11 PM fixing apps.you are the one
do you resent that
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pub?are in the
when they
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your lovely schema.
the Schema,Oh,
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they place on your schema.
demandsthe crazy
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developers are a pain in the…
fair to sayIt’s
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hate about DBA’s?do youwhat
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really, we do.we love you DBA’s,
well,
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of things we don’t like…a couple
but, there are
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no permissions on the database.
when we havewe love it,
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almost have enough permissions.
as much as when wealthough, not quite
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drive us insane.‘conventions’
your naming
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are_you_fixated_with_underscores?
oh why,why,
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we’re on naming ‘conventions’ … and while
oh
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like you need your namemakes you look
tbl_customers
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underpantsinto your
sewn
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mumyour
by
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about the same time as …went out of fashion
hungarian notation
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they’re really hard to work with!null values
what about,
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the painDBA’s knew
if only
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the suffering
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the torment
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the grief
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developers.they cause
that
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we’re in this together.you do,well
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is the real problem.none of thisbut
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is only going to get worse.the real problem
and
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are one of the main culprits.microsoftwe,
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you’re perfect!it isn’t so microsoft,
say
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to make our minds up.can’t seem
we
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when you can have …data access technology
why have one
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RecordSets
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XML
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ADO
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ADO.NET
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DataSet’s
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Adapters
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Readers
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DAAB
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LINQ to SQL
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Enterprise Lib
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SQLXML
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DynamicData
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ORM
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Entity Framework
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technology focus?our new
and
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OData
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Oh Dear
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of chocolates at a party.a massive pile
like
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with data access methods.you’re spoiling us
ambassador
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why should you care?you’re DBA’s
but
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critical.this will become
more, and more
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now.we have controlsorry DBA’s but
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as the only way, is over.stored procedure
the time of the
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are becoming the standard.
and other ORMsentity framework
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they’re here to stay.and for worsefor better
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anytime soon.won’t changelegacy systems
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storythey’re a differentbut new systems,
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not to have a database at all.
common practiceit’s now
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dah!dah
dah
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from the audience.of horror
gasps
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is we’ll generate the schema...
for DBAswhat’s worse
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we’ve built the app.after
from the code
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to change anything.too late
when it’s
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forever more.your problem
then make it
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aren’t you?you’re listening now
yeah,
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this situation?should we fix
so why,
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this.ask yourselves
developers
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a database server?cluster
how do you
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of tempdb files?
optimal numberwhat is the
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session?suspended
what’s a
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want to know?do you really
and,
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apps.you want to build
no,
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about...what do you know
DBAs
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environments?statefull
stateless and
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viewstate?optimize
how best to
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system is?source control
what a
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(just for reference, you should know that one)
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want to know?do you really
and,
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it is that DBAs do for fun.
do whateverno, you want to
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drowning kittens
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badger baiting
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watching ready steady cook
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that.like
stuff
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this.need to fixwe
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too late.before it’s
now,
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this situation?how do we fix
so,
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guidance.marriage
we need
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![Page 139: DEV](https://reader036.fdocuments.us/reader036/viewer/2022081604/5681660e550346895dd94f50/html5/thumbnails/139.jpg)
problem.a technology
this isn’t
![Page 140: DEV](https://reader036.fdocuments.us/reader036/viewer/2022081604/5681660e550346895dd94f50/html5/thumbnails/140.jpg)
more technology.fix it with
we cannot
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we follow…the processit’s about
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we have…the peopleand
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to this.is key
communication
![Page 144: DEV](https://reader036.fdocuments.us/reader036/viewer/2022081604/5681660e550346895dd94f50/html5/thumbnails/144.jpg)
get together…of projectsright at the beginning
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be handledwill reallytalk about how data
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as onethe whole system
and treat
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and databaseapplication
it isn’t
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solutionit’s a
![Page 149: DEV](https://reader036.fdocuments.us/reader036/viewer/2022081604/5681660e550346895dd94f50/html5/thumbnails/149.jpg)
fits all.one size
there is no
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to help.some tips
here are
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lists.e-mail distribution
setup
![Page 152: DEV](https://reader036.fdocuments.us/reader036/viewer/2022081604/5681660e550346895dd94f50/html5/thumbnails/152.jpg)
to sign up.involved
get everyone
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alike.and DBAs
developers
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your knowledge.in a constructive way
and share
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on relevant topicsquick presentations
deliver
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and discuss them.whole teamto the
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program.to pair
don’t be afraid
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together.applicationstest
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each otherjust talk toand please
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each other.educate
so,
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together…work
and,
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one another.against
not,
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![Page 164: DEV](https://reader036.fdocuments.us/reader036/viewer/2022081604/5681660e550346895dd94f50/html5/thumbnails/164.jpg)
if you can’t get on with your DBA’s
developers,and
![Page 165: DEV](https://reader036.fdocuments.us/reader036/viewer/2022081604/5681660e550346895dd94f50/html5/thumbnails/165.jpg)
to keep them busy.
you can dohere is something
![Page 166: DEV](https://reader036.fdocuments.us/reader036/viewer/2022081604/5681660e550346895dd94f50/html5/thumbnails/166.jpg)
going homejust before they’re
wait until
![Page 167: DEV](https://reader036.fdocuments.us/reader036/viewer/2022081604/5681660e550346895dd94f50/html5/thumbnails/167.jpg)
and add this…from a production boxopen a proc
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RAISERROR ('Transaction (Process ID 53) was deadlocked on lock resources withanother process and has been chosen as the deadlock victim. Rerun thetransaction', 16, 1 );
RETURN;
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fin.
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but suck lesslike this one
there are other sessions