While accessing my wordpress cPanel there is an option in database, which indicates "information_schema (17)" what it is? A year ago I have recovered some corrupted database so slightly I am doubtful about "information_schema (17)". Is this some kind of leftover file from a database retrieval operation.
Actually this is the information database where you'll find the information about all the other database is stored. It is a built in virtual database with the exclusive function of providing information about the database system itself. The MySQL server automatically generate the tables inside it. However you can not modify its data, but you can query it.