DDL statement - Create Table with Primary Key
To create a table with Primary Key you need to use create table command like in the below example.
Create Table with Primary Key
USE tempdb;
GO
CREATE TABLE Customers
(ID int,
Name varchar(500),
City varchar(500),
CONSTRAINT PK_Customers PRIMARY KEY (ID)
GO
Check if the primary key exists
select *
from INFORMATION_SCHEMA.TABLE_CONSTRAINTS
where CONSTRAINT_TYPE='PRIMARY KEY';