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Database Schema
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Nipun Tomar
13y
4.7
k
0
0
25
Blog
A
database schema
is a set of relation schemas. Changes to a schema or database schema are expensive. So, careful thought must be given to design of a database schema.
A database schema defines a database in terms of tables, keys, indexes and constraints.
Example
of a database schema:
employee
(emp_name, birth_date, social_security_no, dept_name),
department
(dept_name, function).
Various
objects
of a schema :
• Fields
• Records
• Tables
• Database
Database Schema
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