Patents by Inventor BongChae KANG

BongChae KANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Technique for processing query in database management system
    Patent number: 10324933
    Abstract: Disclosed is a method for processing a query in a database management system (DBMS). The method includes: receiving a main query including a subquery; identifying an indication to independently manage a processing result for the subquery in the received main query by parsing the received main query—the indication including storing type information for the processing result of the subquery; determining a storing type for independently storing the processing result for the subquery based on the indication; and storing the processing result for the subquery independently from the processing result for the main query while performing processing for the main query according to the determined storing type.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: June 18, 2019
    Assignee: TmaxData Co., Ltd.
    Inventors: Yongkwon Kim, Youngjae Choi, Bongchae Kang, Yeseul Kim
  • Join type for optimizing database queries
    Patent number: 10102248
    Abstract: A query complier analyzes a query to identify a correlated scalar subquery. The query complier transforms the query having the correlated scalar subquery into a query of AGGREGATION INNER/OUTER JOIN or MAX1ROW INNER/OUTER JOIN depending on a result type of the correlated scalar subquery. The AGGREGATION INNER/OUTER JOIN performs JOIN on the rows of the correlated scalar subquery with the rows of a main query and AGGREGATE on the joined rows and returns a result of the joined rows of the main query and aggregation value thereof. The MAX1ROW INNER/OUTER JOIN performs JOIN on the rows of the correlated scalar subquery with the rows of a main query, raises Error when the number of joined rows of the subquery is two or more and returns a result of the row of the main query and the joined row of the subquery.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: October 16, 2018
    Assignee: TMAXDATA CO., LTD.
    Inventors: BongChae Kang, Sang Young Park, Sukwon Yi, Youngjae Choi
  • TECHNIQUE FOR PROCESSING QUERY IN DATABASE MANAGEMENT SYSTEM
    Publication number: 20180025058
    Abstract: Disclosed is a method for processing a query in a database management system (DBMS). The method includes: receiving a main query including a subquery; identifying an indication to independently manage a processing result for the subquery in the received main query by parsing the received main query—the indication including storing type information for the processing result of the subquery; determining a storing type for independently storing the processing result for the subquery based on the indication; and storing the processing result for the subquery independently from the processing result for the main query while performing processing for the main query according to the determined storing type.
    Type: Application
    Filed: July 27, 2016
    Publication date: January 25, 2018
    Inventors: YONGKWON KIM, YOUNGJAE CHOI, BONGCHAE KANG, YESEUL KIM
  • JOIN TYPE FOR OPTIMIZING DATABASE QUERIES
    Publication number: 20150142775
    Abstract: A query complier analyzes a query to identify a correlated scalar subquery. The query complier transforms the query having the correlated scalar subquery into a query of AGGREGATION INNER/OUTER JOIN or MAX1ROW INNER/OUTER JOIN depending on a result type of the correlated scalar subquery. The AGGREGATION INNER/OUTER JOIN performs JOIN on the rows of the correlated scalar subquery with the rows of a main query and AGGREGATE on the joined rows and returns a result of the joined rows of the main query and aggregation value thereof. The MAX1ROW INNER/OUTER JOIN performs JOIN on the rows of the correlated scalar subquery with the rows of a main query, raises Error when the number of joined rows of the subquery is two or more and returns a result of the row of the main query and the joined row of the subquery.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Inventors: BongChae KANG, Sang Young PARK, Sukwon YI, Youngjae CHOI
  • JOIN TYPE FOR OPTIMIZING DATABASE QUERIES
    Publication number: 20140101130
    Abstract: A query complier analyzes a query to identify a correlated scalar subquery. The query complier transforms the query having the correlated scalar subquery into a query of AGGREGATION INNER/OUTER JOIN or MAX1ROW INNER/OUTER JOIN depending on a result type of the correlated scalar subquery. The AGGREGATION INNER/OUTER JOIN performs JOIN on the rows of the correlated scalar subquery with the rows of a main query and AGGREGATE on the joined rows and returns a result of the joined rows of the main query and aggregation value thereof. The MAX1ROW INNER/OUTER JOIN performs JOIN on the rows of the correlated scalar subquery with the rows of a main query, raises Error when the number of joined rows of the subquery is two or more and returns a result of the row of the main query and the joined row of the subquery.
    Type: Application
    Filed: January 15, 2013
    Publication date: April 10, 2014
    Applicant: TIBERO CO., LTD.
    Inventors: BongChae KANG, Sang Young PARK, Sukwon YI, Youngjae CHOI