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What is database schema?
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Answer / jaya shanker prasad
The overall design of the database structure is called
database schema.for example the lecturer will go to the
class room only the part of the database schema that is
attendence register.
| Is This Answer Correct ? | 10 Yes | 2 No |
Answer / v p sharma
The term schema refers to the overall design of the data
base. it is a logical database description and is drawn as
a chart of the type of data that are used it gives the
name of the entity and relationship between them for eg an
information display system that gives info about arrival
and departure of train and aircraft at stations. the schema
will remain the same though the values diplayed in the
sysytem will change from time to time. the term subschema
refers to the same view but but for the data item types and
record types which are used ina particular application or
by particular user.
| Is This Answer Correct ? | 6 Yes | 1 No |
Answer / dbramesh
Schema is where all the user objects are logically grouped.
usage of Schema and user are interchangeble
Schema is an user
schema is for users
Cheers,
Ramesh
| Is This Answer Correct ? | 6 Yes | 2 No |
Answer / neeraj sharma
A database schema is described in a formal language supported by the database management system (DBMS). In a relational database, the schema defines the tables, the fields in each table, and the relationships between fields and tables.
Schemas are generally stored in a data dictionary. Although a schema is defined in text database language, the term is often used to refer to a graphical depiction of the database structure
Levels of database schema
1. Conceptual schema, a map of concepts and their relationships
2. Logical schema, a map of entities and their attributes and relations
3. Physical schema, a particular implementation of a logical schema
4. Schema object, Oracle database object
5. Schema is the over all structure of the database
| Is This Answer Correct ? | 3 Yes | 0 No |
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