Cursor is used to process multiple rows using pl/sql.

Cursor : It's a private SQL worksheet area where we can 
execute SQL commands and processing information.
The purpose of the Cursor is,  PL/SQL execution block will 
process only one records means it will return only one 
records.If we want to retrieve or process more number of 
records we use the "Cursors". 
These are of two types.
1. Implicit Cursor 2. Explicit cursors.

Thank you,
Suresh

to perform multiple rows accessing.