Oracle8i interMedia Text Reference Release 2 (8.1.6) Part Number A77063-01 |
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Query Operators, 20 of 26
Use the threshold operator (>) in two ways:
The threshold operator at the expression level eliminates documents in the result set that score below a threshold number.
The threshold operator at the query term level selects a document based on how a term scores in the document.
At the expression level, to search for documents that contain relational databases and to return only documents that score greater than 75, use the following expression:
'relational databases > 75'
At the query term level, to select documents that have at least a score of 30 for lion and contain tiger, use the following expression:
'(lion > 30) and tiger'
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