Samsung Electronics Co., Ltd.

Hee-Gyu Jin

Kyoung-Gu Woo

Young-Seok Kim

Hyung-gyu Lee

A logging optimization technology using a non-volatile memory is provided. A log record has a first link connected based on a page unit and a second link connected based on a transaction unit. The log record is stored in a non-volatile memory buffer. The log record stored in the non-volatile memory buffer is deleted or moved to a disk, if necessary.

Apparatus and method for logging optimization using non-volatile memory

A method and apparatus for data recovery in a multitasking or multithreading environment is provided. The method includes creating a log record by performing bit-by-bit logging with respect to a lowest level bitmap of a multilevel bitmap, recovering the lowest level bitmap using the log record, and correcting a higher level bitmap corresponding to the lowest level bitmap based on the recovered lowest level bitmap.

Method and device for data recovery using bit logging

An adaptive logging apparatus and method are provided. Using the adaptive logging apparatus and method, it is possible to accumulatively store the size of log records generated according to a data update request, and selectively perform algorithms for Recovery and Isolation Exploiting Semantics (ARIES) logging and shadow paging logging, according to the size of the stored log records.

Adaptive logging apparatus and method

An apparatus and method of recovering a final display are provided. The apparatus includes a query-string-creating module creating query strings in response to a cursor-request message, a query-string-controlling module creating a first cursor as a result of processing the query strings, and returning the created first cursor to the query-string-creating module, and a cursor-recovery module storing information about the first cursor and recovering information about a second cursor in response to the cursor-request message.

Growing community of inventors

Suwon-si, South Korea

Hee-Gyu Jin