How to insert bulk information into database in single query execution

Basically the basic inserting query in sql is 

INSERT INTO tbl_name (a,b,c) VALUES(1,2,3);

but i need to insert n number of rows in a single query execution. like below 

INSERT INTO tbl_name (a,b,c) VALUES(1,2,3),(4,5,6),(7,8,9);

or 

INSERT INTO tbl_name VALUES (1,2), (5,5);