# Parametric Search

The `GetTagValues` and `GetQueryTagValues` actions allow you to perform parametric searches.

A parametric search allows you to search for items by their characteristics (values in certain fields). When you provide fixed values in parametric fields, the parametric search returns consistent values in the nonfixed parametric fields. For example, you can search an IDOL wine database for specific wine varieties from a specific region by specifying which fields must match these characteristics. Only wines that match the specified variety and region return.

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