每一个IBM Cognos环境都可以有多个索引数据服务、多个索引更新服务和多个索引文件。

Each IBM Cognos environment can have multiple index data services, multiple index update services, and multiple index files.

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工作负载与真实的客户环境非常接近，包括复制、集群、本地邮件数据库复制、全文索引和事务日志记录等。

The workload is much closer to a true customer's environment that includes replication, clustering, local mail database replication, full text indexing, transaction logging, and so on.

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首先，Netezza数据库管理系统(DBMS)，一个面向大规模并行netezza环境的高度优化的引擎，不会使用索引。

First, the Netezza database management system (DBMS), a highly optimized engine for the massively parallel Netezza environment, does not use indexes.

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