in MySql Which is More faster and efficient, Manual Sequence or Auto Increment?

Question

Which is More faster and efficient Manual Sequence or MySql Auto Increment? And which one we should use ? And which one is good for more efficient queries.

Answer 1

Create MySQL AUTO_INCREMENT column

CREATE TABLE xyz
(
ID int NOT NULL AUTO_INCREMENT,
PRIMARY KEY (ID)
)

The AUTO_INCREMENT attribute can be used to generate a unique identity By default. The starting value for AUTO_INCREMENT is 1, and it will increment by 1 for each new record. for new rows