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Foil 48 What are Schemes?

From Full Relational Database HPDC-4 Presentation HPDC-4 Tutorial/CPS616 Spring95 -- August 1, Pentagon City Virginia. by Gang Cheng Marek Podgorny (Geoffrey Fox) * See also color IMAGE
Schemes are used to define scope of different data objects to enforce data secuity and naming issues in a DBMS.
A Scheme in a DB is a logical hierarchy of data storage structures.
Major scheme objects are: users, tablespaces, tables, views, index, cluster, synonyms, columns.
Access to Different Schemes require different roles and privileges for different users.
Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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