What is schema and explain its types?

What is schema and its types?

Schema is the overall description of the database. The basic structure of how the data will be stored in the database is called schema. Schema is of three types: Logical Schema, Physical Schema and view Schema.

What is schema explain?

The term "schema" refers to the organization of data as a blueprint of how the database is constructed (divided into database tables in the case of relational databases). The formal definition of a database schema is a set of formulas (sentences) called integrity constraints imposed on a database.

What is schema explain different levels of schema?

It deals with the data, the relationship between them and the different access methods implemented on the database. The logical design of database is called a schema. This architecture contains three layers of database management system, which are as follows − External level. Conceptual level.

What are two types of schema?

TypesPerson schemas are focused on specific individuals. ... Social schemas include general knowledge about how people behave in certain social situations.Self-schemas are focused on your knowledge about yourself. ... Event schemas are focused on patterns of behavior that should be followed for certain events.The Role of a Schema in Psychology - Verywell Mind