Tables where the combined columns (or the size of an individual row) exceeds the database page size and must be split across two or more database pages are referred to as wide table. The more pages a row takes up, the longer the database server takes to read each row. If you have wide tables, and find performance slow consider further normalizing your tables to reduce the number of columns. If that is not possible, a larger database page size may be helpful, especially if most tables are wide.
Discuter à propos de cette page dans DocCommentXchange.
|Copyright © 2013, SAP AG ou société affiliée SAP - SAP Sybase SQL Anywhere 16.0|