Define the terms - physical schema and logical schema, Database Management System

Define the terms  1) physical schema 2) logical schema. 

Physical schema:  The physical schema explains the database design at the physical level, which  is  the  lowest  level  of  abstraction describing  how  the  data  are actually kept. 

Logical schema: The logical schema explains the database design at the logical level, which explains what data are kept in the database and what relationship exists between the data.  

 

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