SQL Server 2012: Create Sequence object to generate Alphanumeric Sequence Number

SQL Server 2012 introduced a Sequence object with lots of functionality, but unfortunately we can only create Sequence Object with Number data-types.

We can create a Sequence object for a list of this data-types:

  • tinyint
  • smallint
  • int
  • bigint
  • decimal
  • numeric

But in some situation we also require alphanumeric Sequence Number and for that we should apply special FORMAT on the value of Sequence Number.

Below is a full demonstration to FORMAT a Sequence value and make it alphanumeric.

First, Create sample table:

Create a Sequence object:

Create Sequence constraint using FORMAT function:

Insert few sample records:

The Result:

SQL Server Alphanumeric Sequence

You can find Alphanumeric Sequence Number in the above result.

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