ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,423,305, issued on Sept. 23, was assigned to Beijing Oceanbase Technology Co. Ltd. (Beijing).
"Hierarchical query methods and apparatuses" was invented by Dachuan Shen (Hangzhou, China), Yi Pan (Hangzhou, China) and Longzhong Wang (Hangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method is provided to process a hierarchical query request for requesting to query a target database table, where the hierarchical query request includes a query start condition and a connection condition. The method includes: in a first query round, first data is queried from the target database table based on the query start condition, and the first data is u...