MySQL INSERT SELECT - Duplicate rows

Question

I want to do an INSERT SELECT query like this:

INSERT INTO `tableName` (SELECT * FROM `anotherTable`) 

The problem is when it finds a duplicate

Answer 1

You need to add ON DUPLICATE KEY IGNORE :

INSERT INTO `tableName` (SELECT * FROM `anotherTable`) ON DUPLICATE KEY IGNORE

Info here-> http://dev.mysql.com/doc/refman/5.5/en/insert.html

Answer 2

Use INSERT IGNORE

INSERT IGNORE INTO `tableName` (SELECT * FROM `anotherTable`)