# Django 2.1.8.dev20190330215650 documentation

# 모델과 데이터베이스

A model is the single, definitive source of data about your data. It contains the essential fields and behaviors of the data you're storing. Generally, each model maps to a single database table.

- 모델
- 쿼리 만들기
- Aggregation
- 검색
- Managers
- Performing raw SQL queries
- 데이터베이스 트랜잭션
- Multiple databases
- 테이블스페이스
- Database access optimization
- Database instrumentation
- Examples of model relationship API usage