Creating global indexes  Creating clustered indexes on partitioned tables

Chapter 10: Partitioning Tables and Indexes

Creating local indexes

Adaptive Server supports local clustered indexes and local nonclustered indexes on all types of partitioned tables. A local index inherits the partition types, partitioning columns, and partition bounds of the base table.

For range-, hash-, and list-partitioned tables, Adaptive Server always creates local clustered indexes, whether or not you include the keywords local index in the create index statement.

This example creates a local, clustered index on the partitioned mysalesdetail table—see “Creating a hash-partitioned table”. In a clustered index, the physical order of index rows must be the same as that of the data rows; you can create only one clustered index per table.

create clustered index clust_idx 
	on mysalesdetail(ord_num) local index

This example creates a local, nonclustered index on the partitioned mysalesdetail table. The index is partitioned by title_id. You can create as many as 249 nonclustered indexes per table.

create nonclustered index nonclust_idx 
		on mysalesdetail(title_id)
	local index p1 on seg1, p2 on seg2, p3 on seg3




Copyright © 2005. Sybase Inc. All rights reserved. Creating clustered indexes on partitioned tables

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