패스트코드블로그

in Back Tier Program Language (Java, Python, ... ) 관계 Relation: Association (instance in filed) & Dependency (instance in area) has -a , is -a in Database Relation 은 Scalar, Vector ( elem ) meta data raw data annotation notation

Database Objects Oracle Database recognizes objects that are associated with a particular schema and objects that are not associated with a particular schema, as described in the sections that follow. Schema Objects A schema is a collection of logical structures of data, or schema objects. A schema is owned by a database user and has the same name as that user. Each user owns a single schema. Sc..