Learn how to use Azure SQL Server Auto Increment with Primary Key. Our SQL Server Support team is here to help you with your questions and concerns.

Azure SQL Server Auto Increment with Primary Key

Did you know we can create an auto-incrementing primary key using the IDENTITY property in SQL Server?

This property helps generate unique integer values for a column automatically whenever a new row is inserted into the table.

Let’s take a look at how to create a table with an auto-incrementing primary key in SQL Server:

CREATE TABLE OurTableName
(
ID INT PRIMARY KEY IDENTITY(1,1),
-- Other columns in your table
);

Here, we define a column named “ID” with INT data type inside the CREATE TABLE statement. We declare it as the primary key by specifying “PRIMARY KEY.”

Furthermore, the first value in IDENTITY is the initial value for the auto-incrementing column, and the second is the value to be added for each new row.

Hence, each time we insert a new row into the table without mentioning a value for the “ID” column, Azure SQL Server will automatically generate a unique integer value starting from 1 and incrementing by 1 for each new row.

In brief, our “ID” column will contain unique values and serve as an auto-incrementing primary key for our table.

For example,


-- Insert a new row, and the "ID" column will auto-increment.
INSERT INTO OurTableName (OtherColumn1, OtherColumn2)
VALUES ('Value1', 'Value2');


This inserts a new row with a unique “ID” value, and we only have to provide values for the other columns in the table.

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Conclusion

In brief, our Support Experts demonstrated how to use Azure SQL Server Auto Increment with Primary Key.