.

Subsequently, one may also ask, what is a database schema What information does it contain?

A database schema is a store of data that describes the content and structure of the physical data store (sometimes called metadata – data about data). It contains a variety of information about data types, relationships, indexes, content restrictions, and access controls.

Also, how many schemas are in a database? It is to be noted that there will be only one conceptual schema and one internal schema per database. The DBMS is responsible for mapping between these three types of schema.

Similarly, you may ask, what is difference between database and schema?

The basic difference between the two terms, schema and database lies in their definition i.e. database is a collection of facts or information about the considered object. On the other hand, Schema is a structural representation of the entire database. The database consists of a schema, records for the tables.

What does a database schema look like?

A schema contains schema objects, which could be tables, columns, data types, views, stored procedures, relationships, primary keys, foreign keys, etc. A database schema can be represented in a visual diagram, which shows the database objects and their relationship with each other.