oracle 科普

 

Schem定义

A schema is a collection of database objects (used by a user.).
Schema objects are the logical structures that directly refer to the database’s data.
A user is a name defined in the database that can connect to and access objects.
Schemas and users help database administrators manage database security.

schema为数据库对象的集合,类似于包名,如:tables, views, sequences, stored procedures, synonyms, indexes, clusters, and database links。通常一个用户有一个缺省的schema,用户名与schema的名称一致。当然一个用户可以管理多个schema。

 

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