When I INSERT multiple rows into a MySQL table, will the ids be increment by 1 everytime?

Question

if I have a query like the following:

INSERT INTO table (col1,col2,col3) VALUES
(\'col1_value_1\', \'col2_value_1\', \'col3_value_1\'),
(\'col1_value_2\', \'         


        

Answer 1

mysql treat multi insertion query as a transaction or one query, all rows will be inserted or if it failed there is no rows will be inserted, so if you insert this query:

INSERT INTO table (col1,col2,col3) VALUES
('col1_value_1', 'col2_value_1', 'col3_value_1'),
('col1_value_2', 'col2_value_2', 'col3_value_2'),
('col1_value_3', 'col2_value_3', 'col3_value_3');

mysql will run this as a one query, if your id auto incremental it will take your ids 57,58,59. if the other user pass insert query in the same time, it will 2 probability if other user query take more time than your query your query will take 57,58,59 if your query take more time than the other user so your ids will start from the other user query end. so whatever the case the multi insert query when id is auto incremental will be sorted in the query.