Information Schema is the part of the SQL-92 standard which exposes the metadata of the database. In SQL server a set of views are created in each of the database which exposes the metadata of the database. The information schema is kept in a separate schema - information schema - which exists in all databases, but which is not included in the search path by default. It is implemented as a set of views returning specially defined data types as required by the standard. The access rights of these views do not fall under the login type "dbo." Using Information Schema we can get the information about tables, views, constraints, etc.