12. 다음 설명이 의미하는 것은?
It is a collection of meta-data describing the structure and constraint of a database. It defines data entities, attributes, relations, and constraints on data manipulation.
- 1Interface
- 2Schema
- 3Transaction
- 4Domain
It is a collection of meta-data describing the structure and constraint of a database. It defines data entities, attributes, relations, and constraints on data manipulation.