alter column auto increment sql server code example

Example 1: sql query to make a existing column auto increment

Alter table table_name modify column_name datatype(length) AUTO_INCREMENT PRIMARY KEY

Example 2: id increment ms sql server

CREATE TABLE Persons (
    Personid int IDENTITY(1,1) PRIMARY KEY,
    LastName varchar(255) NOT NULL,
    FirstName varchar(255),
    Age int
);

Example 3: how to alter auto increment in sql

INSERT INTO Persons (Personid,FirstName,LastName)

VALUES (seq_person.nextval,'Lars','Monsen');

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