By Brian Taylor, Naresh Adurty, Steve Bradley, Carrie King Taylor
This e-book makes a speciality of the numerous improvements in Sybase ASE 15 together with approach management improvements, function-based indexes, computed columns, scrollable cursors, galaxy optimizer, question plan, galaxy walls, a number of tempdb, MDA tables, andn Plan Viewer.
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This publication specializes in the numerous improvements in Sybase ASE 15 together with method management improvements, function-based indexes, computed columns, scrollable cursors, galaxy optimizer, question plan, galaxy walls, a number of tempdb, MDA tables, andn Plan Viewer.
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Extra resources for The official new features guide to Sybase ASE 15
Example text
The chapter continues with a demonstration on how to extract useful information from the Plan Viewer, and discusses the information and concepts contained in the Plan Viewer’s output. 0 In conjunction with the release of ASE 15, Sybase provides a new version of the Sybase Software Asset Management (SySAM). 0 provides a mechanism for Sybase to ensure customer compliance with license agreements. 0 provides the capability of monitoring and reporting license compliance, which is required for ASE 15.
IR or upgrade. Once this handy new feature is fully implemented, it will add grace and ease to server maintenance and administration tasks by allowing similar operations, such as DDL execution, to occur simultaneously. By allowing increased concurrency to system catalogs, maintenance operations will no longer have contention on the system catalogs. Another advantage of row locked system catalogs is the reduction of lock contention for DDL operations, allowing higher throughput for applications, especially those applications where 20 | Chapter 2: System Maintenance Improvements tempdb usage is high.
System Maintenance Improvements To achieve the goals of simplifying the maintenance of ASE as well as enhancing the performance of query processing, several system maintenance enhancements are introduced in the ASE 15 release. Included in these changes is the ability to automatically update statistics using the datachange function in conjunction with Job Scheduler, the expansion of row-level locking to system tables, and the introduction of partition-based utilities and maintenance tools. The system administration enhancements in ASE 15 are designed to lower the maintenance requirements of ASE, enabling the database administrator to target maintenance efforts on areas of ASE that truly need attention.