For example, the user may be looking for a website (navigational query) to buy something (transactional query) or to learn something (informational query).
例如，用户可能需要寻找一个网站(业务查询)买东西(交易查询)或了解某事(信息查询)。
Informational constraints can be a great aid to query optimization.
信息约束可以很好地辅助查询优化。
Informational constraints help improve query performance in a WebSphere Information Integrator federated system.
信息约束有助于提高WebSphere Information Integrator联邦系统中的查询性能。
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