Splits, Merges and Purges THE HOW TO OF TABLE PARTITIONING

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Brandon Preece Manager of Database

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DISCLAMER: Must have Enterprise Edition

“In SQL Server, all tables and indexes in a database are considered partitioned, even if they are made up of only one partition. Essentially, partitions form the basic unit of organization in the physical architecture of tables and indexes. This means that the logical and physical architecture of tables and indexes comprised of multiple partitions mirrors that of single-partition tables and indexes.” us/library/ms190787%28v=sql.105%29.aspx “The data in partitioned tables and indexes is horizontally divided into units that can be spread across more than one filegroup in a database. Partitioning can make large tables and indexes more manageable and scalable.” us/library/ms aspx

Why do I need this? Large table support Data Retention Putting data on proper class of disk Performance Tuning MS SQL Using Columnstore Indexes Backup and Restore

What is it? Tables Partition Key (Clustered Index) Partition Functions Partition Schemes Filegroup(s)

Range Right vs Range Left Image borrowed from

Demo: The Basics

How do I do it? Sliding Windows Split, Merge, Purge (Switch)

Demo: Advanced Topics

References Table Partitioning in SQL Server: A Magic Solution for Better Performance? Partitioned Table and Index Concepts Create Partitioned Tables and Indexes Brent Ozar: SQL Server Table Partitioning: Resources

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