We constructed a photometric database system which is optimally designed for microlensing events from KMTNet (Korea Microlensing Telescope Network) observation. We developed a framework software for the convenience of archiving, uploading, searching, and downloading of processed photometric data. From various tests for optimal data archiving engines, we found that the MyISAM storage engine shows the best performance. For the high performance of database system, data types of each field are carefully suggested from various combinations of tests especially to correct round-off errors. The developed framework provides the convenience of access to the database server using query forms via web pages, and displays the light curve of selected target for a quick view.

ABSTRACT
1. 서론
2. 데이터베이스 구성
    2.1. 데이터베이스 저장엔진
    2.2. 테이블 구성과 자료 형식
    2.3. 데이터베이스의 입출력과 검색 모의실험
3. 프레임워크
    3.1. KMTNet_SW
    3.2. KMTNet_SEARCH
4. 결론 및 토의
참고 문헌

• 김동진(한국천문연구원) | D. -J. KIM (Korea Astronomy and Space Science Institute)
• 이충욱(한국천문연구원) | C. -U. LEE (Korea Astronomy and Space Science Institute)
• 김승리(한국천문연구원) | S. -L. KIM (Korea Astronomy and Space Science Institute)
• 박병곤(한국천문연구원) | B. -G. PARK (Korea Astronomy and Space Science Institute)