how to make a primary key auto increment in sql code example

Example 1: 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)
);

Example 2: what is auto increment in sql

Autoincrement keyword allows the
user to create a unique number to get
generated whenever a new record is
inserted into the table.
This keyword is usually required 
whenever PRIMARY KEY in SQL is used.

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