A sequence may refer to any of the following:
- A sequence is an ordered list containing successive items, or functions for performing certain actions. 
- In an SQL database, a sequence is used to generate a unique number and starting point, which is then increased based on a set interval. A sequence is often used to create a primary key value in a database table, and is incremented by one with each newly generated database entry. 
- Upon startup, computers utilize what is called a boot sequence. See our boot sequence for further information on this term. 
Database terms, Programming terms