Name two data structures in Database

Tables: This is the most common and simplest form of data storage in a database. A table is a collection of data entries and it consists of columns, and rows. Each column in a table holds a certain kind of data and a field stores the actual value of an attribute.

Indexes: This is a data structure that improves the speed of data retrieval operations on a database table. Indexes are used to quickly locate data without having to search every row in a database table every time a database table is accessed. They can be created using one or more columns, providing the basis for both rapid random lookups and efficient ordering of access to records.