SQL Anywhere Studio Help
Adaptive Server Anywhere Help
Introduction to property sheets
Index property sheet
The General tab of the Index property sheet has the following components:
Name Shows the name of the index.
Type Shows the type of object.
Table Shows the name and owner of the table with which the index is associated.
Dbspace Shows the database file, or dbspace, where the index is located.
Unique Shows whether values in the index must be unique. The unique value is set when you create a new index.
Clustered Shows whether this index is a clustered index. Clustered indexes are supported for Adaptive Server Anywhere databases that are version 8.0.2 and higher.
Clustered indexes in Adaptive Server Anywhere store the table rows in approximately the same order as they appear in the corresponding index. Using a clustered index can lead to performance benefits by reducing the number of times each page needs to be read into memory. Only one index on a table can be a clustered index.
For more information about clustered indexes, see CREATE INDEX statement.
Set Clustered Index Now Opens the Set Clustered Index dialog where you can specify that this index is a clustered index.
Index type Shows the type of index the table has.
Maximum hash size This information only appears for databases that are created with Adaptive Server Anywhere 7 or earlier. The hash size is the number of bytes used to store a value in an index.
For more information about indexes, see Indexes.
Adaptive Server Anywhere version 6 and 7 databases use regular B-tree indexes with a hash size of 10.
Comment Provides a place for you to type a text description of the index. For example, you could use this area to describe the index's purpose in the system.