[DB] 카산드라 CQL(Cassandra Query Language)
데이터 타입(Data Type) 및 쿼리 사용법 / Partition key, Primary key, Clustering key
Posted by
Wonyong Jang
on December 15, 2024 ·
4 mins read
[DB] Apache Cassandra(카산드라)
mongoDB와 비교
Posted by
Wonyong Jang
on December 14, 2024 ·
4 mins read
[DB] Mysql 인덱스 실행계획 분석하기
Extra 컬럼을 통한 실행계획 분석 / filtered / rows / type
Posted by
Wonyong Jang
on September 08, 2023 ·
7 mins read
[DB] Mysql 커버링 인덱스로 성능 최적화 하기
Covering Index / 쿼리 실행 순서 / Clustered, Non Clustered Index
Posted by
Wonyong Jang
on September 07, 2023 ·
9 mins read
[DB] Mysql 인덱스 이해하기
B-Tree 인덱스 구조 / 다중 컬럼 인덱스 / UNIQUE INDEX / index condition pushdown / 주의사항
Posted by
Wonyong Jang
on September 06, 2023 ·
13 mins read
[DB] DocumentDB(MongoDB) Replica Set 과 readPreference 설정
Primary, Secondary, Arbiter / Write Concern / Replica Lag(복제지연) / Oplog, Journaling
Posted by
Wonyong Jang
on September 20, 2021 ·
11 mins read
[DB] MongoDB 커넥션
maxConnectionIdleTime, maxConnectionLifeTime, minPoolSize, maxPoolSize / MongoClientSettings
Posted by
Wonyong Jang
on September 17, 2021 ·
4 mins read
[DB] MongoDB Query 명령어
database, collection, document / eq, ne, in, nin, elemMatch, regex
Posted by
Wonyong Jang
on August 24, 2021 ·
4 mins read
[DB] MongoDB with Spring Data Repository Query
Spring data repository의 mongoDB 사용시 주의사항
Posted by
Wonyong Jang
on August 17, 2021 ·
4 mins read
[DB] MongoDB Index 설계 전략
인덱스 설계와 성능 향상 방법 / 쿼리 상태 점검(currentOp) 및 종료(killOp)
Posted by
Wonyong Jang
on April 06, 2021 ·
27 mins read
[DB] 커서 기반, 오프셋 기반 페이지네이션
Cursor-based Pagination / Offset-based Pagination
Posted by
Wonyong Jang
on September 06, 2020 ·
8 mins read
[DB] 오라클 데이터 펌프
Datapump 사용법 및 Export 와 Datapump 비교
Posted by
Wonyong Jang
on February 18, 2020 ·
1 min read