What is an example of a sequence in SQL?

In the realm of database management, creating a sequence is a crucial step for ensuring data integrity and maintaining an orderly Flow of unique identifiers. One such example is the creation of a sequence named 'sequence_1', which is designed to meet specific requirements.

However, the 'cycle' keyword introduces a unique aspect to the sequence. Upon reaching the maximum value of 100, instead of stopping or throwing an error, the sequence will seamlessly loop back to the start value and continue incrementing from there. This feature enables the sequence to be reused indefinitely within its defined range.

Among the many applications of such sequences, they are particularly useful in scenarios where unique identifiers or primary keys are required. By leveraging a sequence, developers can ensure that each record in a database is assigned a distinct and predictable identifier, facilitating efficient data retrieval and manipulation.

The command 'CREATE SEQUENCE sequence_1 start with 1' initiates the process by defining the starting point of the sequence as 1. This signifies that the first value generated by the sequence will be 1, setting the foundation for the subsequent values.

The 'increment by 1' clause specifies the manner in which the sequence progresses. In this case, each subsequent value will be one greater than the previous one, ensuring a steady and predictable increase in the sequence.