In order to create an MDEX Engine query based on a client browser request, the request URL must contain MDEX Engine-specific query parameters. While the number of parameters that the UrlENEQuery class can interpret is large, only a few of these parameters are required for the four basic queries.

The parameters that the UrlENEQuery class needs for the four basic queries are listed in this table:

You can combine the four basic queries in one URL, with the restriction that each type of query can appear only once per URL. Each basic query, however, has no impact on the other queries. Combining queries in the URL is used exclusively for performance improvement because it reduces the number of independent queries that are queued up waiting for the MDEX Engine.

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