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Indices y las mejoras del desempeño 
10 de Septiembre (12 pm GMT -5) 
Kenneth Ureña 
Resúmen: 
En esta sesión vamos a ver la organización de los 
índices además de como ejecutar estrategias 
como index coverages e identificar cuales son las 
prácticas que nos evita la utilización de los índices. 
Próximos Eventos 
Aprendamos DAX 
17 de Septiembre 
José Ahias López Portillo 
Configurando réplicas de 
Lectura de SQL-Server AlwaysOn 
24 de Septiembre 
Carlos Rojas 
Recuperación de desastres 
apartir de respaldos 
1 de Octubre 
Kenneth Ureña 
Está por comenzar:
Indices y las mejoras del desempeño 
10 de Setiembre 2014 
Kenneth Ureña 
MCSA| MCITP | MCTS 
PASS Spanish Virtual Chapter Lead
Agenda 
El viaje de una transacción 
Indices 
Buenas practices de codificación
EL VIAJE DE UNA TRANSACCIÓN

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The document discusses an upcoming PASS Member Engagement Campaign from March 1st to May 31st 2017. Local PASS groups who bring in the most new members will be awarded Visa gift cards in different categories. It also lists several upcoming virtual group sessions on various SQL Server topics happening in March and April 2017. PASS members are encouraged to participate in local groups and virtual sessions to learn and network.

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Microsoft SQL Server PASS News July 2010
Microsoft SQL Server PASS News July 2010Microsoft SQL Server PASS News July 2010
Microsoft SQL Server PASS News July 2010

Latest news from the Professional Association for SQL Server in July 2010. The PASS community encompasses everyone who uses the Microsoft SQL Server or Business Intelligence Platforms. This includes database administrators, application developers, Business Intelligence professionals, information technology professionals, executives, consultants, educators, instructors, and students.

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Power BI - Finally I can make decisions based on facts
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SSW's General Manager, Ulysses Maclaren, will take you through his personal journey of discovery into the world of Power BI. Many companies have valuable data, but the challenge is being able to easily visualize it in a way that allows you to make decisions. He will show in a live demo how Power BI allows even non-technical users to produce and share invaluable reports and dashboards.

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Actual vacio 
Truncado 
Virtual 
Log 
File 
- Aceso Secuencial 
- Solo 1 archive activo 
- Recomendado 
Raid 1 ó 1 + 0 
- Commit, backup log 
trigger I/O 
- Acceso aleatorio 
- Multiple archivos activos 
- Recomendado Raid 1/1+0 
5+0 / 5 
- Checkpoint, backup, cargar / 
descargar Cache 
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INDEXACIÓN
Table structure Indexes and Organization 
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SQL server 2008 books online
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The document summarizes the agenda for the June chapter meeting of the Swiss PASS group, which was to be held at the Hotel Continental in Lausanne. The first session from 15:45-17:15 was on SQL Server best practices and was to be presented by Charley Hanania, an SQL Server MVP. The second session from 17:45-19:00 was on clustering in SQL Server high availability solutions and was to be presented by David Schmidt from Mediterranean Shipping Company. The document also provided brief updates on PASS virtual learning opportunities and the PASS Summit conference to be held in Seattle in October 2011.

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Clustered Table Indexes and Organization 
Image from: 
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Clustered (example) 
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http://www.sqlservercentral.com/images/4695.jpg
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Index 
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PASS Chapter Deck - 2010 August
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The PASS community newsletter provides information about PASS, an association dedicated to SQL Server professionals. PASS connects, shares knowledge, and provides learning opportunities for its members through online communities, chapter events, conferences and educational content. The newsletter announces upcoming PASS events like 24 Hours of PASS, SQLRally conference, and SQL Saturday regional events. It also shares SQL Server news, articles and resources and encourages readers to attend the PASS Summit conference and become a PASS member.

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Q&A 
Kenneth Ureña 
http://www.sqlcr.com 
@sqlcr 
/SpanishPASSVC
Manténgase conectado a nosotros! 
Visítenos en http://globalspanish.sqlpass.org 
18 
/SpanishPASSVC 
lnkd.in/dtYBzev 
/user/SpanishPASSVC 
/SpanishPASSVC
PASS Community News 
August 2014
Planning on attending PASS Summit 2014? Start saving 
today! 
• The world’s largest gathering of SQL Server & BI professionals 
• Take your SQL Server skills to the next level by learning from the world’s SQL 
Server experts, in 190+ technical sessions 
• Over 5000 attendees, representing 2000 companies, from 52 countries, 
ready to network & learn 
Ask your Chapter Leader how to 
save $150 off registration! 
$1,895 
UNTIL SEPTEMBER 26, 2014

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PASS Virtual Chapters Listing 
Check out the sqlpass.org for more information on all the Virtual Chapters: 
• Application Development 
• Big Data 
• Book Readers 
• Business Analytics 
• Business Intelligence 
• Cloud 
• Data Architecture 
• Database Administration 
• DBA Fundamentals 
• Excel BI 
• Healthcare 
• High Availability and Disaster Recovery 
• InMemory 
• Master DataData Quality 
• Oracle SQL 
• Performance 
• Powershell 
• Professional Development 
• Security 
• Virtualization 
• Women in Technology 
• Global Chinese 
• Global French 
• Global Hebrew 
• Global Italian 
• Global Portuguese 
• Global Russian 
• Global Spanish
Virtual Chapter Meetings – August 
VIRTUAL CHAPTER MEETING TOPIC 
DBA Fundamentals Aug 5 11:00– 12:00 CDT (UTC -05:00) Rolling Upgraders, The Easy Way 
Presented by Argenis Fernandez 
Global Spanish Aug 6 12:00-12:30 (UTC -05:00) Los Caso de Uso Para In-Memory OLTP 
Presented by Warner Chaves 
Global Hebrew Aug 10 17:30-18:30 JDT (UTC +02:00) Take Your SQL Server Development 
Process Forward! 
Presented by Itai Binyamin 
Professional 
Development 
Aug 12 12:00-13:00 EDT (UTC -04:00) Bridging the Communication Gap 
Between DBA and Developer 
Presented by Robert Davis 
High Availability and 
Disaster Recovery 
Aug 12 12:00-13:00 CDT (UTC -05:00) Mirroring Start to Finish 
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Virtual Chapter Meetings – August 
VIRTUAL CHAPTER MEETING TOPIC 
Global Spanish Aug 13 12:00-13:00 (UTC -05:00) Haciendo Preguntas Básicas en Power 
BI 
Presented by Andrei Garzon 
Excel Business 
Intelligence 
Aug 14 11:00-12:00 EDT (UTC-04:00) Advanced Analytics: Excel Solver 
Presented by Dan Fylstra 
Business Intelligence Aug 14 11:00-12:00 EDT (UTC -04:00) Continuous Integration for Reporting 
Services 
Presented by Nat Sundar 
DBA Fundamentals Aug 19 11:00-12:00 CDT (UTC -05:00) The Roadmap to Better Performance: 
Reading Query Plans 
Presented by Erin Stellato 
Global Spanish Aug 20 12:00-12:30 (UTC -05:00) Fundamentos sobre lost indices end 
SQL 
Presented by Enrique Puig
Virtual Chapter Meetings – August 
VIRTUAL CHAPTER MEETING TOPIC 
Global Russian Aug 20 15:00-16:30 (UTC +03:00) SSIS - Повышение 
производительности обработки 
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Global French Aug 21 20:00-21:00 RST (UTC +01:00) Power BI Hybride avec la Passerelle de 
Gestion de Données 
Presented by Jean-Pierre Riehl 
Business Analytics Aug 21 12:00-13:00 CDT (UTC -05:00) Looking Through the Windshield: 
Creating forward-looking Dashboards 
and KPI’s 
Presented by Brian Larson 
Business Intelligence Aug 27 12:00-13:00 GMT (UTC-00:00) Intro to R 
Presented by Stephanie Locke 
Global Spanish Aug 27 12:00-13:00 (UTC-05:00) Visualización de Big Data Con Power 
View 
Presented by Eduardo Castro

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Upcoming SQLSaturdays 
Upcoming North America Events Upcoming International Events 
• Aug 2 #324 Baton Rouge 
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• Sep 27 #325 Sao Paulo 
Visit www.sqlsaturday.com to 
register for an event near you!
26 
Volunteering with PASS 
Volunteer Today! 
Now it’s easier than ever to volunteer with PASS. 
Let us know your volunteer preferences by updating the 
“myVolunteering” section of your myPASS profile. 
PASS would not exist without our passionate, dedicated, 
and hardworking volunteers from around the globe.
27 
Volunteering with PASS 
Outstanding Volunteer Award 
Do you know a volunteer that has gone 
above and beyond recently? 
Nominate them for the monthly OVA. 
VolunteerRecognition@sqlpass.org 
PASSion Award 
The highest of PASS accolades presented 
yearly to a volunteer. 
Nominations will open in August 2014. 
Stay tuned!
Stay Involved! 
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Programa de Reconocimiento 
Programa de Voluntario Sobresaliente 
• PASS le invita a nominar a su voluntario favorito para ser “Voluntario Sobresaliente del Mes” 
• Enviar nominaciones en todo momento a: VolunteerRecognition@sqlpass.org 
Favor proveer: 
• Información de contacto del nominado, 
• una lista breve de los programas de PASS que a participado el nominado 
• los años que lleva activo en la comunidad 
• una corta descripción por el cual considera que esta persona debe ser reconocida 
• Los nominados seleccionados serán anunciados en la edición del boletín PASS Connector y recibirán un 
certificado de apreciación.
Aprendamos DAX 
17 de Septiembre (12 pm GMT -5) 
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Resúmen: 
En esta sesión veremos los conceptos básicos de como 
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Indices y las mejoras del desempeño - Kenneth Urena

  • 1. Indices y las mejoras del desempeño 10 de Septiembre (12 pm GMT -5) Kenneth Ureña Resúmen: En esta sesión vamos a ver la organización de los índices además de como ejecutar estrategias como index coverages e identificar cuales son las prácticas que nos evita la utilización de los índices. Próximos Eventos Aprendamos DAX 17 de Septiembre José Ahias López Portillo Configurando réplicas de Lectura de SQL-Server AlwaysOn 24 de Septiembre Carlos Rojas Recuperación de desastres apartir de respaldos 1 de Octubre Kenneth Ureña Está por comenzar:
  • 2. Indices y las mejoras del desempeño 10 de Setiembre 2014 Kenneth Ureña MCSA| MCITP | MCTS PASS Spanish Virtual Chapter Lead
  • 3. Agenda El viaje de una transacción Indices Buenas practices de codificación
  • 4. EL VIAJE DE UNA TRANSACCIÓN
  • 5. Actual vacio Truncado Virtual Log File - Aceso Secuencial - Solo 1 archive activo - Recomendado Raid 1 ó 1 + 0 - Commit, backup log trigger I/O - Acceso aleatorio - Multiple archivos activos - Recomendado Raid 1/1+0 5+0 / 5 - Checkpoint, backup, cargar / descargar Cache lleno vacio lleno vacio vacio lleno vacio lleno
  • 7. Table structure Indexes and Organization Image from SQL server 2008 books online
  • 8. Heap Table Indexes and Organization Image from: SQL server 2008 books online
  • 9. Clustered Table Indexes and Organization Image from: SQL server 2008 books online
  • 10. Clustered (example) Image from: http://www.sqlservercentral.com/images/4695.jpg
  • 11. NonClustered Indexes and Organization Index Image from: SQL server 2008 books online
  • 12. Column Index Image from http://magenic.com/
  • 13. Data access patters Seek Scan Bookmark Lookup
  • 16. Coding Best Practices Maximize coverage Avoid conversions (implicit/explicit) Avoid row by row access (cursor pattern) Avoid unnecessary sorting Choose the right index for the expected data pattern access method
  • 17. Q&A Kenneth Ureña http://www.sqlcr.com @sqlcr /SpanishPASSVC
  • 18. Manténgase conectado a nosotros! Visítenos en http://globalspanish.sqlpass.org 18 /SpanishPASSVC lnkd.in/dtYBzev /user/SpanishPASSVC /SpanishPASSVC
  • 19. PASS Community News August 2014
  • 20. Planning on attending PASS Summit 2014? Start saving today! • The world’s largest gathering of SQL Server & BI professionals • Take your SQL Server skills to the next level by learning from the world’s SQL Server experts, in 190+ technical sessions • Over 5000 attendees, representing 2000 companies, from 52 countries, ready to network & learn Ask your Chapter Leader how to save $150 off registration! $1,895 UNTIL SEPTEMBER 26, 2014
  • 21. PASS Virtual Chapters Listing Check out the sqlpass.org for more information on all the Virtual Chapters: • Application Development • Big Data • Book Readers • Business Analytics • Business Intelligence • Cloud • Data Architecture • Database Administration • DBA Fundamentals • Excel BI • Healthcare • High Availability and Disaster Recovery • InMemory • Master DataData Quality • Oracle SQL • Performance • Powershell • Professional Development • Security • Virtualization • Women in Technology • Global Chinese • Global French • Global Hebrew • Global Italian • Global Portuguese • Global Russian • Global Spanish
  • 22. Virtual Chapter Meetings – August VIRTUAL CHAPTER MEETING TOPIC DBA Fundamentals Aug 5 11:00– 12:00 CDT (UTC -05:00) Rolling Upgraders, The Easy Way Presented by Argenis Fernandez Global Spanish Aug 6 12:00-12:30 (UTC -05:00) Los Caso de Uso Para In-Memory OLTP Presented by Warner Chaves Global Hebrew Aug 10 17:30-18:30 JDT (UTC +02:00) Take Your SQL Server Development Process Forward! Presented by Itai Binyamin Professional Development Aug 12 12:00-13:00 EDT (UTC -04:00) Bridging the Communication Gap Between DBA and Developer Presented by Robert Davis High Availability and Disaster Recovery Aug 12 12:00-13:00 CDT (UTC -05:00) Mirroring Start to Finish Presented by Ryan Adams
  • 23. Virtual Chapter Meetings – August VIRTUAL CHAPTER MEETING TOPIC Global Spanish Aug 13 12:00-13:00 (UTC -05:00) Haciendo Preguntas Básicas en Power BI Presented by Andrei Garzon Excel Business Intelligence Aug 14 11:00-12:00 EDT (UTC-04:00) Advanced Analytics: Excel Solver Presented by Dan Fylstra Business Intelligence Aug 14 11:00-12:00 EDT (UTC -04:00) Continuous Integration for Reporting Services Presented by Nat Sundar DBA Fundamentals Aug 19 11:00-12:00 CDT (UTC -05:00) The Roadmap to Better Performance: Reading Query Plans Presented by Erin Stellato Global Spanish Aug 20 12:00-12:30 (UTC -05:00) Fundamentos sobre lost indices end SQL Presented by Enrique Puig
  • 24. Virtual Chapter Meetings – August VIRTUAL CHAPTER MEETING TOPIC Global Russian Aug 20 15:00-16:30 (UTC +03:00) SSIS - Повышение производительности обработки потоков данных Global French Aug 21 20:00-21:00 RST (UTC +01:00) Power BI Hybride avec la Passerelle de Gestion de Données Presented by Jean-Pierre Riehl Business Analytics Aug 21 12:00-13:00 CDT (UTC -05:00) Looking Through the Windshield: Creating forward-looking Dashboards and KPI’s Presented by Brian Larson Business Intelligence Aug 27 12:00-13:00 GMT (UTC-00:00) Intro to R Presented by Stephanie Locke Global Spanish Aug 27 12:00-13:00 (UTC-05:00) Visualización de Big Data Con Power View Presented by Eduardo Castro
  • 25. Upcoming SQLSaturdays Upcoming North America Events Upcoming International Events • Aug 2 #324 Baton Rouge • Aug 9 #304 Indianapolis • Aug 23 #328 Birmingham • Aug 23 #309 Oklahoma City • Sep 6 #320 Raleigh • Sep 13 #300 Kansas City • Sep 20 #331 Denver • Sept 20 # 340 San Diego • Aug 30 #327 Johannesburg • Aug 30 #317 Oslo • Sep 6 #301 Cape Town • Sep 13 # 323 Paris • Sep 20 #290 Kiev • Sep 20 #310 Dublin • Sep 27 #325 Sao Paulo Visit www.sqlsaturday.com to register for an event near you!
  • 26. 26 Volunteering with PASS Volunteer Today! Now it’s easier than ever to volunteer with PASS. Let us know your volunteer preferences by updating the “myVolunteering” section of your myPASS profile. PASS would not exist without our passionate, dedicated, and hardworking volunteers from around the globe.
  • 27. 27 Volunteering with PASS Outstanding Volunteer Award Do you know a volunteer that has gone above and beyond recently? Nominate them for the monthly OVA. VolunteerRecognition@sqlpass.org PASSion Award The highest of PASS accolades presented yearly to a volunteer. Nominations will open in August 2014. Stay tuned!
  • 28. Stay Involved! • Sign up for a free membership today at sqlpass.org • Linked In: http://www.sqlpass.org/linkedin • Facebook: http://www.sqlpass.org/facebook • Twitter: @SQLPASS • PASS: http://www.sqlpass.org
  • 29. Programa de Reconocimiento Programa de Voluntario Sobresaliente • PASS le invita a nominar a su voluntario favorito para ser “Voluntario Sobresaliente del Mes” • Enviar nominaciones en todo momento a: VolunteerRecognition@sqlpass.org Favor proveer: • Información de contacto del nominado, • una lista breve de los programas de PASS que a participado el nominado • los años que lleva activo en la comunidad • una corta descripción por el cual considera que esta persona debe ser reconocida • Los nominados seleccionados serán anunciados en la edición del boletín PASS Connector y recibirán un certificado de apreciación.
  • 30. Aprendamos DAX 17 de Septiembre (12 pm GMT -5) José Ahias López Portillo Resúmen: En esta sesión veremos los conceptos básicos de como programar consultas DAX y algunas de las funciones mas útiles que podrían salvarnos en un apocalipsis de generación de consultas complejas en modelos tabulares. Próximo Evento

Editor's Notes

  1. This is what we are going to cover on this session, - Essentials of Raid Arrays configuration The basic that what happen under the seen during a transaction How can the data and log files been organized in order to