set auto increment to 1 mysql code example

Example 1: mysql set id auto increment

ALTER TABLE users AUTO_INCREMENT=1001;

Example 2: add auto_increment column to existing table mysql

ALTER TABLE `users` ADD `id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY

ALTER TABLE `users` ADD `id` INT NOT NULL AUTO_INCREMENT UNIQUE FIRST

Example 3: auto_increment mysql

ALTER TABLE User AUTO_INCREMENT = 1;

Example 4: mysql reset auto increment to 1

ALTER TABLE tablename AUTO_INCREMENT = 1

Example 5: auto increment column in mysql query results

SET @auto_increment=0;
SELECT @auto_increment := @auto_increment+1 AS `No`;

Example 6: how to change the auto increment in existing table mysql

ALTER TABLE tbl_access ADD COLUMN `access_id` int(10) NOT NULL PRIMARY KEY AUTO_INCREMENT FIRST