Amit Shukla, Michael Wang SQL Server Engineering Team Microsoft Session Code: DAT201.

Microsoft SQL Server 2008 Nine Months Post-Release: Best Practices and Lessons Learned Amit Shukla, Michael Wang

SQL Server Engineering TeamMicrosoftSession Code: DAT201

Agenda

Best practicesConnect with SQL Server product teamSQL Server Futures

Part I: Building great solutions using an increasingly feature rich product is hard!

You are looking for guidance on how to best architect your applications

difficult to pick the right technologies for your applicationLearn how to better integrate SQL Server 2008 features into common scenarios

Turn on Data Compression

Row Page

Compression white paper

The general guideline is to use “ROW” compression for OLTP

2% - 5% CPU

20% Compression

Compression white paper

The general guideline is to use “PAGE” compression for Data Warehousing

10% - 15% CPU

60% - 70% Compression

Compression white paper Data Warehousing white paper

Backup compression

Backup Size Backup Time Restore Time0

1

2

3

4

5

6

No CompressionCompression

Backup Compression

Use Resource Governor to prevent runaway queries

Resource Governor by Example

Backup

Admin Tasks

OLTP Activity

High

Admin Workload OLTP Workload

Min Memory 10%Max Memory 20%

Max CPU 20%

Max CPU 90%

Admin Pool Application Pool

Use MERGE for ETL

SQL Server 2005 SQL Server 2008MERGE StockTable stUSING TradesTable ttON st.stock = tt.stockWHEN MATCHED THEN UPDATE SET st.quantity += tt.quantityWHEN NOT MATCHED THEN INSERT (stock, quantity) VALUES (tt.stock, tt.quantity);

IF StockTable contains stock UPDATE quantity from TradesTableELSE INSERT row into StockTable

How to use MERGE

Predictable Performance and Concurrency

Lock EscalationPlan FreezingAd hoc workloads

Details of lock escalation

Partition level lock escalation

Use improved Plan Freezing mechanisms

Understanding plan guides

Use improved Plan Freezing mechanisms

Understanding plan guides

Use improved Plan Freezing mechanisms

Understanding plan guides

Optimize SQL Server 2008 for ad hoc workloads

Use Sparse Columns to store data efficiently

Optimize NULLs

White paper

Use Filtered Indexes to improve query performance by indexing efficiently

White paper

Use TVP to perform large data set loading

White paper

Batching

Some resources that will help you make informed decisions

Use the best practices site to learn how to take advantage of new features

http://technet.microsoft.com/en-us/sqlserver/bb331794.aspx

The site contains whitepapers

More white papers at:http://www.microsoft.com/sqlserver/2008/en/us/white-papers.aspxhttp://sqlcat.com/whitepapers/default.aspx

Part II: How can I get SQL Server to help me?

The product team seems to operate in isolation

Tell us what you want in the product

Use some of the large variety of ways to communicate with the product team

Enhancements to the OVER clause are popular

Use Other Feedback Channels

TLC is the feedback mechanism at TechEd

Ask your questions using MSDN Forums

Use Formal Feedback Channels

Visit our customer lab

Get invited to a System Design Review

Sign up for our TAP program

Our automated data gathering identifies feature usage and bugs

You can opt-in for anonymous & automated gathering of feature usage

Some 2008 feature usage collected: Editions and hardware configuration

SQL Server 2008: Data type usage

Increasing usage

Sparse

Time

Geometry

Geography

Date

SQL Server 2008: Objects per database

SQL S

tored-Pro

cedure

Table (Use

r-defined)

Primary-

key c

onstraint

Fore

ign-key c

onstraint

CLR Trig

ger (only

DML)

CLR Sc

alar-Functi

on

CLR St

ored-Pro

cedure

CLR Aggre

gate Functi

on

CLR Table-va

lued Functi

on0

50

100

150

200

250

Number of objects per database(Enterprise edition servers, with >10GB of data)

You can opt-in to report crashes and unexpected errors

Bugs are automatically filed by Watson and tracked by bucket and IP address

Bugs appear in Product team’s bug database automatically

In SQL Server 2008 we took some of your feedback to heart

We incorporated some developer delighters that weren’t even in the plan!

You can now declare and set a variableOLD

DECLARE @v INT;SET @v = 5;

NEWDECLARE @v INT = 5;

You now have to type fewer characters when adding a variable to itself

OLD

UPDATE TblSET c1 = c1 + 5WHERE c1 < 10;

NEW

UPDATE TblSET c1 += 5WHERE c1 < 10;

This also works for *, -, /

We made inserting multiple rows into a table much easierOLDINSERT INTO @customers (custid,name) VALUES (1, 'cust 1');INSERT INTO @customers (custid,name) VALUES (2, 'cust 2');INSERT INTO @customers (custid,name) VALUES (3, 'cust 3');INSERT INTO @customers (custid,name) VALUES (4, 'cust 4');INSERT INTO @customers (custid,name) VALUES (5, 'cust 5'); 

NEWINSERT INTO @customers (custid, name) VALUES (1, 'cust 1'), (2, 'cust 2'), (3, 'cust 3'), (4, 'cust 4'), (5, 'cust 5');

We made using a constant table super easy as well!OLD NEW

SELECT *FROM ( VALUES (1, 'cust 1'), (2, 'cust 2'), (3, 'cust 3'), (4, 'cust 4'), (5, 'cust 5') ) MyCustomers(custid, name);

DECLARE @customers TABLE (custid INT, name VARCHAR(20)) INSERT INTO @customers (custid,name) VALUES (1, 'cust 1');INSERT INTO @customers (custid,name) VALUES (2, 'cust 2');INSERT INTO @customers (custid,name) VALUES (3, 'cust 3');INSERT INTO @customers (custid,name) VALUES (4, 'cust 4');INSERT INTO @customers (custid,name) VALUES (5, 'cust 5'); SELECT *FROM @customers;

Part III: Give you a glimpse into what is coming up in SQL Server 2008 R2

2008 R2 will have support for 256 logical processors

2008 R2 will support Unicode compression

Compress

Themes That Remain Unchanged From Release to Release

Enterprise data platform

Dynamic development

Beyond Relational

Pervasive Insight

Summary

Best practicesConnect with SQL Server product teamSQL Server Futures

Call to Action

Get in touch with the SQL Development TeamLeverage the mechanisms available to provide feedback to MicrosoftParticipate in the Customer Experience Improvement Program, Error ReportingVisit TLC – we want to hear from you!

Leverage the “Delighters” in SQL Server 2008

Help us make SQL Server even better.Help us make SQL Server work for you!

SQL Server Word of the Day

POLICY-BASEDMANAGEMENT

Monday, May 11

*Game cards may be picked up at the SQL Server booths in the TLC

question & answer

SQL Server Community Resources

Become a FREE PASS Member: www.sqlpass.org/RegisterforSQLPASS.aspxLearn more about the PASS organization www.sqlpass.org/

Additional Community ResourcesSQL Server Community Center www.microsoft.com/sqlserver/2008/en/us/community-center.aspxTechNet Community for IT Professionalshttp://technet.microsoft.com/en-us/sqlserver/bb671048.aspxDeveloper Center http://msdn.microsoft.com/en-us/sqlserver/bb671064.aspxSQL Server 2008 Learning Portalhttp://www.microsoft.com/learning/sql/2008/default.mspx

• Connect: Local Chapters, Special Interest Groups, Online Community• Share: PASSPort Social Networking, Community Connection Event• Learn: PASS Summit Annual Conference, Technical Articles, Webcasts

• More about the PASS organization www.sqlpass.org/

The Professional Association for SQL Server (PASS) is an independent, not-for-profit association, dedicated to supporting, educating, and promoting the Microsoft SQL Server community.

Additional ResourcesExternal Resources

http://sqlcat.comhttp://blogs.msdn.com/sqlcathttp://blogs.msdn.com/mssqlisvhttp://technet.microsoft.com/en-us/sqlserver/bb331794.aspxwww.sqlserverinternals.com/books.html

SQL Server 2008 Business Value Calculator: www.moresqlserver.com

Related ContentDAT320-Breakout: Optimizing Microsoft SQL Server 2008 Applications Using Table Valued Parameters, XML, and MERGE

DAT04-TLC: Using the HIERARCHYID Datatype in Microsoft SQL Server 2008 to Maintain and Query Hierarchies

DAT313-Breakout: Inside T-SQL: 2008 Enhancements, Techniques, Tips & Tricks

DAT304-Breakout: Auditing in Microsoft SQL Server 2008

DAT321-Breakout: Taking Your Database beyond Relations with Microsoft SQL Server 2008

DAT302-Breakout: All You Need to Know about Microsoft SQL Server 2008 Failover Clusters

DAT317-Breakout: Microsoft SQL Server 2008 Data Warehousing by Demonstration

www.microsoft.com/teched

Sessions On-Demand & Community

http://microsoft.com/technet

Resources for IT Professionals

http://microsoft.com/msdn

Resources for Developers

www.microsoft.com/learningMicrosoft Certification and Training Resources

www.microsoft.com/learning

Microsoft Certification & Training Resources

Resources

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IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.