Is there a way to retrieve sql server sequence from Siebel to ensure unique numbers

Siebel: (SQL Server Database Sequence)

Is there a way to retrieve sql server sequence from Siebel to ensure unique numbers. We have an issue of needing a unique incremented number whenever grabbing a number. Currently, we pull from the database field and then add one in script. However, sometimes the script is called at the exact time and it returns the same number twice before the script has a chance to increment the number.

Thank you,

Tom