SQL Server 2005 Database Engine

Sommarkollo Microsoft

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Agenda

• SQL Server 2005 Components• Tools and Utilities• .NET Framework integration• Service Broker• Database Mirroring • Security Overview• Database Engine Enhancements• Conclusion

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SQL Server 2005 “Product Family”

• Components

SQL Server 2005Relational Database

Engine

.NET CLR

Analysis Services

Native HTTP Support

Service BrokerReplication

Reporting ServicesFull-Text Search

Notification Services

SQL Server Integration Services

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Tools and Utilities

• SQL Server Management Studio• SQL Server Configuration Manager• SQL Server Surface Area

Configuration • sqlcmd Utility• Database Engine Tuning Advisor• SQL Server Profiler • SQL Management Objects• Business Intelligence Development

Studio

SQL Server

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.NET Framework integration

• Procedural database objects– Extends T-SQL

• Logic & features

• Managed Execution• Visual Studio• Rich Libraries• In some cases,

better performance

.NET Assembly

UDFUDF TrgrTrgrAggAggSPSP

UDTUDT

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Service Broker

• Asynchronous messaging• Message types, Contracts, Queues, Services• Ordering and coordination• Database integration• New DDL

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Database Mirroring

• Support by service pack 1• Software solution• Per-database basis• Full recovery model• Possible…

– No data loss– Automatic failover

Principal Database Mirror DatabaseClient

Partners

Witness

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Security Enhancements Overview

• Restricted set of features installed or enabled• Password Policy • Execution Context • Server Agent• All Permissions Grantable • Separation of Users and Schemas• Native Encryption

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Database Engine Enhancements Overview

• System Enhancements• Data Storage Enhancements• Partitioned Tables and Indexes• New Index DDL• Snapshot Isolation Level• Database Mail• Metadata

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System Enhancements

• Dynamic AWE memory– …but still a workaround

• Dynamic I/O and CPU affinity – CPU from an operating system point of view– CPU from an SQL Server point of view

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Data Storage Enhancements

• varchar(max), nvarchar(max), and varbinary(max)– Some string functions can be used– After Triggers

• Native XML– Index– FOR XML enhanced

• XQuery support added

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Partitioned Tables and Indexes

• T-SQL– MERGE– SPLIT– SWITCH

• Partition…– Function– Scheme– Filegroups

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New Index DDL

• ALTER INDEX New syntax– REBUILD (per partition)– REORGANIZE (per partition)

• LOB_COMPACTION

– DISABLE – <SET OPTIONS>

• ONLINE (Enterprise Edition, including CREATE & DROP)

• ALLOW_ROW_LOCKS• ALLOW_PAGE_LOCKS• MAXDOP

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Snapshot Isolation Level

• Versions of data are kept in tempdb• No uncommitted data read• Repeatable reads without blocking • Calls for extra monitoring

tempdb

READ_COMMITTED_SNAPSHOT

ALLOW_SNAPSHOT_ISOLATION

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Database Mail

• SMTP

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Metadata

• New style• Old style

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Conclusion

• Well…