Answers for "alter table add primary key auto increment"

create table with primary key auto increment in sql

CREATE TABLE table_name (
    id INT NOT NULL IDENTITY(1, 1),
    name NVARCHAR (100) NULL,
    school NVARCHAR (100) NULL,
    PRIMARY KEY (ID)
);

alter table auto_increment

ALTER TABLE ALLITEMS CHANGE itemid itemid INT(10)AUTO_INCREMENT PRIMARY KEY;