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User Guide
The information contained in this section applies to IBM WebSphere Commerce Version 7.0.0.9 and Feautre Pack 8. The documentation also applies to all subsequent releases and modifications until otherwise indicated in new editions.
Administering
Dynamic caching
In general, caching improves response time and reduces system load. Caching techniques are used to improve the performance of World Wide Web Internet applications. Most techniques cache static content (content that rarely changes) such as graphic and text files. However, many websites serve dynamic content, containing personalized information or data that changes more frequently. Caching dynamic content requires more sophisticated caching techniques, such as those provided by the WebSphere Application Server dynamic cache, a built-in service for caching and serving dynamic content.
WebSphere Commerce search data cache
The WebSphere Commerce search server code uses the WebSphere Dynamic Cache facility to perform caching of database query results. Similar to the data cache used by the main WebSphere Commerce server, this caching code is referred to as the WebSphere Commerce search server data cache.

WebSphere Commerce search data cache

The WebSphere Commerce search server code uses the WebSphere Dynamic Cache facility to perform caching of database query results. Similar to the data cache used by the main WebSphere Commerce server, this caching code is referred to as the WebSphere Commerce search server data cache.

The search server data cache is enabled by default. However, because the search server data cache relies on database triggers to perform required cache invalidations when data changes, you must create the database triggers defined in the schema/dbtype/wcs.cacheivl.trigger.sql database script files. Otherwise, some stale data can persist in the search server data cache, causing out of date search results.