Wildcard Searches

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The NDR supports single-character and multiple-character wildcard searches within single terms (not within phrase queries). The wildcard search only works for fields with a string value data type. Wildcard searches do not work on fields with an integer data type. See Metadata Fields Definitions for a list of field descriptions and types.

Use the “?” symbol to perform a single-character wildcard search.

Use the “*” symbol to perform a multiple-character wildcard search.

The single character wildcard search looks for terms that match with the single character replaced. For example, to search for “text” or “test” you would enter the text query te?t followed by the Esc key and Enter:

Wildcard_Question.png

Or type Querystring:te?t in the Query Bar.

Multiple character wildcard searches look for 0 or more characters. For example, to search for test, tests or tester, you would enter the text query followed by the Esc key and Enter:

Wildcard_Asterik.png

Or type Querystring:test* in the Query Bar.

You can also use the wildcard in the middle of a term. This search will return documents that contain terms that match the characters at the beginning and end of the term. For example, to search for California, you would enter the text query followed by the Esc key and Enter:

Wildcard Asterik CA.png

You can also use the wildcard search to for all values in a specific metadata field. This type of search will only return documents that have a value associated with the field. NDR search will exclude any records from the search results that have an empty field value .

For example, to search for all doc_values_type in the NDR index, you would enter the following query:

Wildcard All Asterik.png

Any records that have no value in the doc_values_type field will not appear in the search results.