The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2026
Filed:
Dec. 06, 2024
Beijing Volcano Engine Technology Co., Ltd., Beijing, CN;
Yuxing Han, Beijing, CN;
Haoyu Wang, Beijing, CN;
Beijing Volcano Engine Technology Co., Ltd., Beijing, CN;
Abstract
Embodiments of the present disclosure provide a method and apparatus for database query, an electronic device, and a medium. The method includes: determining, in response to receiving a structured query language (SQL) query for a database, a query condition and a target column of the SQL query that relates to a number of distinct values (NDV) estimation; selecting, from sampled data of the database, data of the target column that meets the query condition; generating feature data of the selected data of the target column; and determining an estimated NDV of the target column based on the feature data using a model for NDV estimation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile