Table and index partitioning

As you’ve already seen when looking at the metadata for table and index storage, partitioning is an integral feature of SQL Server space organization. Figure 6-3 in Chapter 6 illustrated the relationship between tables and indexes, partitions, and allocation units. Tables and indexes that are built without any reference to partitions are considered to be stored on a single partition. One of the more useful metadata objects for retrieving information about data storage is the sys.dm_db_partition_stats dynamic management view, which combines information found in sys.partitions, sys.allocation_units and sys.indexes.

A partitioned object is split internally into separate physical units that can be stored in different locations. ...

Get Microsoft SQL Server 2012 Internals now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.